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 <h1> Magick::Image Class</h1>
 </center>
 <h4> Quick Contents</h4>
 <ul>
   <li> <a href="#BLOBs">BLOBs</a> </li>
   <li> <a href="#Constructors">Constructors</a> </li>
   <li> <a href="#Image%20Manipulation%20Methods">Image Manipulation
 Methods</a> </li>
   <li> <a href="#Image%20Attributes">Image Attributes</a> </li>
   <li> <a href="#Raw%20Image%20Pixel%20Access">Low-Level Image Pixel
 Access</a> </li>
 </ul>
 <hr width="100%">Image is the primary object in Magick++ and represents
 a single image frame (see <a href="ImageDesign.html">design</a> ). The
 <a href="STL.html">STL interface</a> <b>must</b> be used to operate on
 image sequences or images (e.g. of format GIF, TIFF, MIFF, Postscript,
 &amp; MNG) which are comprized of multiple image frames. Individual
 frames of a multi-frame image may be requested by adding array-style
 notation to the end of the file name (e.g. "animation.gif[3]" retrieves
 the fourth frame of a GIF animation.&nbsp; Various image manipulation
 operations may be applied to the image. Attributes may be set on the
 image to influence the operation of the manipulation operations. The <a
  href="Pixels.html"> Pixels</a> class provides low-level access to
 image
 pixels. As a convenience, including <tt><font color="#663366">&lt;Magick++.h&gt;</font></tt>
 is sufficient in order to use the complete Magick++ API. The Magick++
 API is enclosed within the <i>Magick</i> namespace so you must either
 add the prefix "<tt> Magick::</tt> " to each class/enumeration name or
 add
 the statement "<tt> using namespace Magick;</tt>" after including the <tt>Magick++.h</tt>
 header.
 <p>The preferred way to allocate Image objects is via automatic
 allocation (on the stack). There is no concern that allocating Image
 objects on the stack will excessively enlarge the stack since Magick++
 allocates all large data objects (such as the actual image data) from
 the heap. Use of automatic allocation is preferred over explicit
 allocation (via <i>new</i>) since it is much less error prone and
 allows use of C++ scoping rules to avoid memory leaks. Use of automatic
 allocation allows Magick++ objects to be assigned and copied just like
 the C++ intrinsic data types (e.g. '<i>int</i> '), leading to clear and
 easy to read code. Use of automatic allocation leads to naturally
 exception-safe code since if an exception is thrown, the object is
 automagically deallocated once the stack unwinds past the scope of the
 allocation (not the case for objects allocated via <i>new</i> ). </p>
 <p>Image is very easy to use. For example, here is a the source to a
 program which reads an image, crops it, and writes it to a new file
 (the
 exception handling is optional but strongly recommended): </p>
 <blockquote><tt><font color="#000066">#include &lt;Magick++.h&gt;</font></tt>
   <br>
   <tt><font color="#000066">#include &lt;iostream&gt;</font></tt> <br>
   <tt><font color="#000066">using namespace std;</font></tt> <br>
   <tt><font color="#000066">using namespace Magick;</font></tt> <br>
   <tt><font color="#000066">int main(int argc,char **argv)</font></tt> <br>
   <tt><font color="#000066">{</font></tt> <br>
   <tt><font color="#000066">&nbsp; // Construct the image object.
 Seperating image construction from the</font></tt> <br>
   <tt><font color="#000066">&nbsp; // the read operation ensures that a
 failure to read the image file</font></tt> <br>
   <tt><font color="#000066">&nbsp; // doesn't render the image object
 useless.</font></tt> <br>
   <tt><font color="#000066">&nbsp; Image image;</font></tt><tt><font
  color="#000066"></font></tt>
   <p><tt><font color="#000066">&nbsp; try {</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; // Read a file into
 image object</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.read( "girl.gif" );</font></tt>
   </p>
   <p><tt><font color="#000066">&nbsp;&nbsp;&nbsp; // Crop the image to
 specified size</font></tt> (width, height, xOffset, yOffset)<br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.crop(
 Geometry(100,100, 100, 100) );</font></tt> </p>
   <p><tt><font color="#000066">&nbsp;&nbsp;&nbsp; // Write the image to
 a file</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.write( "x.gif" );</font></tt>
   <br>
   <tt><font color="#000066">&nbsp; }</font></tt> <br>
   <tt><font color="#000066">&nbsp; catch( Exception &amp;error_ )</font></tt>
   <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; {</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; cout
 &lt;&lt; "Caught exception: " &lt;&lt; error_.what() &lt;&lt; endl;</font></tt>
   <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return 1;</font></tt>
   <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; }</font></tt> <br>
   <tt><font color="#000066">&nbsp; return 0;</font></tt> <br>
   <tt><font color="#000066">}</font></tt></p>
 </blockquote>
 The following is the source to a program which illustrates the use of
 Magick++'s efficient reference-counted assignment and copy-constructor
 operations which minimize use of memory and eliminate unncessary copy
 operations (allowing Image objects to be efficiently assigned, and
 copied into containers).&nbsp; The program accomplishes the
 following:
 <ol>
   <li> Read master image.</li>
   <li> Assign master image to second image.</li>
   <li> Zoom second image to the size 640x480.</li>
   <li> Assign master image to a third image.</li>
   <li> Zoom third image to the size 800x600.</li>
   <li> Write the second image to a file.</li>
   <li> Write the third image to a file.</li>
 </ol>
 <blockquote><tt><font color="#000066">#include &lt;Magick++.h&gt;</font></tt>
   <br>
   <tt><font color="#000066">#include &lt;iostream&gt;</font></tt> <br>
   <tt><font color="#000066">using namespace std;</font></tt> <br>
   <tt><font color="#000066">using namespace Magick;</font></tt> <br>
   <tt><font color="#000066">int main(int argc,char **argv)</font></tt> <br>
   <tt><font color="#000066">{</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; Image
 master("horse.jpg");</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; Image second = master;</font></tt>
   <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; second.zoom("640x480");</font></tt>
   <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; Image third = master;</font></tt>
   <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; third.zoom("800x600");</font></tt>
   <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp;
 second.write("horse640x480.jpg");</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp;
 third.write("horse800x600.jpg");</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; return 0;</font></tt> <br>
   <tt><font color="#000066">}</font></tt></blockquote>
 During the entire operation, a maximum of three images exist in memory
 and the image data is never copied.
 <p>The following is the source for another simple program which creates
 a 100 by 100 pixel white image with a red pixel in the center and
 writes it to a file: </p>
 <blockquote><tt><font color="#000066">#include &lt;Magick++.h&gt;</font></tt>
   <br>
   <tt><font color="#000066">using namespace std;</font></tt> <br>
   <tt><font color="#000066">using namespace Magick;</font></tt> <br>
   <tt><font color="#000066">int main(int argc,char **argv)</font></tt> <br>
   <tt><font color="#000066">{</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; Image image( "100x100",
 "white" );</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.pixelColor( 49,
 49, "red" );</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.write(
 "red_pixel.png" );</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; return 0;</font></tt> <br>
   <tt><font color="#000066">}</font></tt></blockquote>
 If you wanted to change the color image to grayscale, you could add the
 lines:
 <p><tt><font color="#000066">&nbsp;&nbsp;&nbsp;
 image.quantizeColorSpace( GRAYColorspace );</font></tt> <br>
 <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.quantizeColors( 256
 );</font></tt> <br>
 <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.quantize( );</font></tt>
 </p>
 <p>or, more simply: </p>
 <p><tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.type(
 GrayscaleType );</font></tt> </p>
 <p>prior to writing the image. </p>
 <center>
 <h3> <a name="BLOBs"></a> BLOBs</h3>
 </center>
 While encoded images (e.g. JPEG) are most often written-to and
 read-from a disk file, encoded images may also reside in memory.
 Encoded
 images in memory are known as BLOBs (Binary Large OBjects) and may be
 represented using the <a href="Blob.html">Blob</a> class. The encoded
 image may be initially placed in memory by reading it directly from a
 file, reading the image from a database, memory-mapped from a disk
 file, or could be written to memory by Magick++. Once the encoded image
 has been placed within a Blob, it may be read into a Magick++ Image via
 a <a href="#constructor_blob">constructor</a> or <a href="#read">read()</a>
 . Likewise, a Magick++ image may be written to a Blob via <a
  href="#write"> write()</a> .
 <p>An example of using Image to write to a Blob follows: <br>
 &nbsp; </p>
 <blockquote><tt><font color="#000066">#include &lt;Magick++.h&gt;</font></tt>
   <br>
   <tt><font color="#000066">using namespace std;</font></tt> <br>
   <tt><font color="#000066">using namespace Magick;</font></tt> <br>
   <tt><font color="#000066">int main(int argc,char **argv)</font></tt> <br>
   <tt><font color="#000066">{</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; // Read GIF file from
 disk</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; Image image(
 "giraffe.gif" );</font></tt>
   <p><tt><font color="#000066">&nbsp;&nbsp;&nbsp; // Write to BLOB in
 JPEG format</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; Blob blob;</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.magick( "JPEG" )
 // Set JPEG output format</font></tt> <br>
   <tt><font color="#000066">&nbsp;&nbsp;&nbsp; image.write( &amp;blob );</font></tt>
   </p>
   <p><tt><font color="#000066">&nbsp;&nbsp;&nbsp; [ Use BLOB data (in
 JPEG format) here ]</font></tt> </p>
   <p><tt><font color="#000066">&nbsp;&nbsp;&nbsp; return 0;</font></tt>
   <br>
   <tt><font color="#000066">}</font></tt></p>
 </blockquote>
 <p><br>
 likewise, to read an image from a Blob, you could use one of the
 following examples: </p>
 <p>[ <font color="#000000">Entry condition for the following examples
 is that <i>data</i> is pointer to encoded image data and <i>length</i>
 represents the size of the data</font> ] </p>
 <blockquote><tt><font color="#000066">Blob blob( data, length );</font></tt>
   <br>
   <tt><font color="#000066">Image image( blob );</font></tt></blockquote>
 or
 <blockquote><tt><font color="#000066">Blob blob( data, length );</font></tt>
   <br>
   <tt><font color="#000066">Image image;</font></tt> <br>
   <tt><font color="#000066">image.read( blob);</font></tt></blockquote>
 some images do not contain their size or format so the size and format
 must be specified in advance:
 <blockquote><tt><font color="#000066">Blob blob( data, length );</font></tt>
   <br>
   <tt><font color="#000066">Image image;</font></tt> <br>
   <tt><font color="#000066">image.size( "640x480")</font></tt> <br>
   <tt><font color="#000066">image.magick( "RGBA" );</font></tt> <br>
   <tt><font color="#000066">image.read( blob);</font></tt></blockquote>
 <center>
 <h3> <a name="Constructors"></a> Constructors</h3>
 </center>
 Image may be constructed in a number of ways. It may be constructed
 from a file, a URL, or an encoded image (e.g. JPEG) contained in an
 in-memory <a href="Blob.html"> BLOB</a> . The available Image
 constructors are shown in the following table: <br>
 &nbsp; <br>
 &nbsp;
 <table bgcolor="#ffffff" border="1" width="100%">
   <caption><b>Image Constructors</b></caption> <tbody>
     <tr>
       <td>
       <center><b>Signature</b></center>
       </td>
       <td>
       <center><b>Description</b></center>
       </td>
     </tr>
     <tr>
       <td><font size="-1">const std::string &amp;imageSpec_</font></td>
       <td><font size="-1">Construct Image by reading from file or URL
 specified by <i>imageSpec_</i>. Use array notation (e.g. filename[9])
 to select a specific scene from a multi-frame image.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const Geometry &amp;size_, const <a
  href="Color.html"> Color</a> &amp;color_</font></td>
       <td><font size="-1">Construct a blank image canvas of specified
 size and color</font></td>
     </tr>
     <tr>
       <td><a name="constructor_blob"></a> <font size="-1">const <a
  href="Blob.html">Blob</a> &amp;blob_</font></td>
       <td rowspan="5"><font size="-1">Construct Image by reading from
 encoded image data contained in an in-memory <a href="Blob.html">BLOB</a>
 . Depending on the constructor arguments, the Blob <a href="#size">size</a>
 , <a href="#depth">depth</a> , <a href="#magick">magick</a> (format)
 may
 also be specified. Some image formats require that size be specified.
 The default ImageMagick uses for depth depends on the compiled-in
 Quantum size (8 or 16).&nbsp; If ImageMagick's Quantum size does not
 match that of the image, the depth may need to be specified.
 ImageMagick can usually automagically detect the image's format.
 When a format can't be automagically detected, the format (<a
  href="#magick">magick</a> ) must be specified.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size,
 size_t depth</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size,
 size_t depth_, const string &amp;magick_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size,
 const
 string &amp;magick_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const size_t width_,&nbsp;</font> <br>
       <font size="-1">const size_t height_,</font> <br>
       <font size="-1">std::string map_,</font> <br>
       <font size="-1">const <a href="Enumerations.html#StorageType">
 StorageType</a> type_,</font> <br>
       <font size="-1">const void *pixels_</font></td>
       <td><font size="-1">Construct a new Image based on an array of
 image pixels. The pixel data must be in scanline order top-to-bottom.
 The data can be character, short int, integer, float, or double. Float
 and double require the pixels to be normalized [0..1]. The other types
 are [0..MaxRGB].&nbsp; For example, to create a 640x480 image from
 unsigned red-green-blue character data, use</font>
       <p><font size="-1">&nbsp;&nbsp; Image image( 640, 480, "RGB",
 0, pixels );</font> </p>
       <p><font size="-1">The parameters are as follows:</font> <br>
 &nbsp;
       <table border="0" width="100%">
         <tbody>
           <tr>
             <td><font size="-1">width_</font></td>
             <td><font size="-1">Width in pixels of the image.</font></td>
           </tr>
           <tr>
             <td><font size="-1">height_</font></td>
             <td><font size="-1">Height in pixels of the image.</font></td>
           </tr>
           <tr>
             <td><font size="-1">map_</font></td>
             <td><font size="-1">This character string can be any
 combination or order of R = red, G = green, B = blue, A = alpha, C =
 cyan, Y = yellow M = magenta, and K = black. The ordering reflects the
 order of the pixels in the supplied pixel array.</font></td>
           </tr>
           <tr>
             <td><font size="-1">type_</font></td>
             <td><font size="-1"><a href="Enumerations.html#StorageType">Pixel
 storage type</a> (CharPixel, ShortPixel, IntegerPixel, FloatPixel, or
 DoublePixel)</font></td>
           </tr>
           <tr>
             <td><font size="-1">pixels_</font></td>
             <td><font size="-1">This array of values contain the pixel
 components as defined by the map_ and type_ parameters. The length of
 the arrays must equal the area specified by the width_ and height_
 values and type_ parameters.</font></td>
           </tr>
         </tbody>
       </table>
       </p>
       </td>
     </tr>
   </tbody>
 </table>
 <center>
 <h3> <a name="Image Manipulation Methods"></a> Image Manipulation
 Methods</h3>
 </center>
 <i>Image</i> supports access to all the single-image (versus
 image-list) manipulation operations provided by the ImageMagick
 library. If you
 must process a multi-image file (such as an animation), the <a
  href="STL.html"> STL interface</a> , which provides a multi-image
 abstraction on top of <i>Image</i>, must be used.
 <p>Image manipulation methods are very easy to use.&nbsp; For example: </p>
 <blockquote><font color="#663366">Image image;</font> <br>
   <font color="#663366">image.read("myImage.tiff");</font> <br>
   <font color="#663366">image.addNoise(GaussianNoise);</font> <br>
   <font color="#663366">image.write("myImage.tiff");</font></blockquote>
 adds gaussian noise to the image file "myImage.tiff".
 <p>The operations supported by Image are shown in the following table: <br>
 &nbsp;
 <table nosave="" border="1">
   <caption><b>Image Image Manipulation Methods</b></caption> <tbody>
     <tr align="center">
       <td><b>Method</b></td>
       <td><b>Signature(s)</b></td>
       <td><b>Description</b></td>
     </tr>
     <tr>
       <td style="text-align: center;" valign="middle">
       <div align="center"><a name="adaptiveThreshold"></a> <font
  size="-1">adaptiveThreshold<br>
       </font></div>
       </td>
       <td valign="middle"><font size="-1">size_t width, unsigned
 int height, unsigned offset = 0<br>
       </font></td>
       <td valign="top"><font size="-1">Apply adaptive thresholding to
 the image. Adaptive thresholding is useful if the ideal threshold level
 is not known in advance, or if the illumination gradient is not
 constant
 across the image. Adaptive thresholding works by evaulating the mean
 (average) of a pixel region (size specified by <i>width</i> and <i>height</i>)
 and using the mean as the thresholding value. In order to remove
 residual noise from the background, the threshold may be adjusted by
 subtracting a constant <i>offset</i> (default zero) from the mean to
 compute the threshold.</font><br>
       </td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="addNoise"></a> <font size="-1">addNoise</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#NoiseType">NoiseType</a>
 noiseType_</font></td>
       <td><font size="-1">Add noise to image with specified noise type.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="addNoiseChannel"></a>addNoiseChannel<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const ChannelType
 channel_, const NoiseType noiseType_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Add noise to an image
 channel with the specified noise type.</small><font size="-1"> The <span
  style="font-style: italic;">channel_</span> parameter specifies the
 channel to add noise to.&nbsp; The </font><small>noiseType_ parameter
 specifies the type of noise.<br>
       </small></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="affineTransform"></a>affineTransform<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const DrawableAffine
 &amp;affine<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Transform image by
 specified affine (or free transform) matrix.<br>
       </small></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="4">
       <center><a name="annotate"></a> <font size="-1">annotate</font></center>
       </td>
       <td><font size="-1">const std::string &amp;text_, const <a
  href="Geometry.html"> Geometry</a> &amp;location_</font></td>
       <td><font size="-1">Annotate using specified text, and placement
 location</font></td>
     </tr>
     <tr>
       <td><font size="-1">string text_, const <a href="Geometry.html">Geometry</a>
 &amp;boundingArea_, <a href="Enumerations.html#GravityType">GravityType</a>
 gravity_</font></td>
       <td><font size="-1">Annotate using specified text, bounding area,
 and placement gravity. If <i>boundingArea_</i> is invalid, then
 bounding area is entire image.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const std::string &amp;text_, const <a
  href="Geometry.html"> Geometry</a> &amp;boundingArea_, <a
  href="Enumerations.html#GravityType">GravityType</a> gravity_, double
 degrees_,&nbsp;</font></td>
       <td><font size="-1">Annotate with text using specified text,
 bounding area, placement gravity, and rotation. If <i>boundingArea_</i>
 is invalid, then bounding area is entire image.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const std::string &amp;text_, <a
  href="Enumerations.html#GravityType"> GravityType</a> gravity_</font></td>
       <td><font size="-1">Annotate with text (bounding area is entire
 image) and placement gravity.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="blur"></a> <font size="-1">blur</font></center>
       </td>
       <td><font size="-1">const double radius_ = 1, const double sigma_
 = 0.5</font></td>
       <td><font size="-1">Blur image. The <i>radius_ </i>parameter
 specifies the radius of the Gaussian, in pixels, not counting the
 center
 pixel.&nbsp; The <i>sigma_</i> parameter specifies the standard
 deviation of the Laplacian, in pixels.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="blurChannel"></a>blurChannel<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const ChannelType
 channel_, const double radius_ = 0.0, const double sigma_ = 1.0<br>
       </small></td>
       <td style="vertical-align: middle;"><font size="-1">Blur an image
 channel. The <span style="font-style: italic;">channel_</span>
 parameter specifies the channel to blur. The <i>radius_ </i>parameter
 specifies the radius of the Gaussian, in pixels, not counting the
 center
 pixel.&nbsp; The <i>sigma_</i> parameter specifies the standard
 deviation of the Laplacian, in pixels.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="border"></a> <font size="-1">border</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_ = "6x6+0+0"</font></td>
       <td><font size="-1">Border image (add border to image).&nbsp; The
 color of the border is specified by the <i>borderColor</i> attribute.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="cdl"></a> <font size="-1">cdl</font></center>
       </td>
       <td><font size="-1">const std::string &amp;cdl_</font></td>
       <td><font size="-1">color correct with a color decision list. See <a href="http://en.wikipedia.org/wiki/ASC_CDL">http://en.wikipedia.org/wiki/ASC_CDL</a> for details.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="channel"></a> <font size="-1">channel</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#ChannelType">ChannelType</a>
 layer_</font></td>
       <td><font size="-1">Extract channel from image. Use this option
 to extract a particular channel from&nbsp; the image.&nbsp; <i>MatteChannel</i>
 &nbsp; for&nbsp; example, is useful for extracting the opacity values
 from an image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="charcoal"></a> <font size="-1">charcoal</font></center>
       </td>
       <td><font size="-1">const double radius_ = 1, const double sigma_
 = 0.5</font></td>
       <td><font size="-1">Charcoal effect image (looks like charcoal
 sketch). The <i>radius_</i> parameter specifies the radius of the
 Gaussian, in pixels, not counting the center pixel.&nbsp; The <i>sigma_</i>
 parameter specifies the standard deviation of the Laplacian, in pixels.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="chop"></a> <font size="-1">chop</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_</font></td>
       <td><font size="-1">Chop image (remove vertical or horizontal
 subregion of image)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="2">
       <center><a name="colorize"></a> <font size="-1">colorize</font></center>
       </td>
       <td><font size="-1">const size_t opacityRed_, const
 size_t opacityGreen_, const size_t opacityBlue_, const
 Color &amp;penColor_</font></td>
       <td><font size="-1">Colorize image with pen color, using
 specified percent opacity for red, green, and blue quantums.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="colorMatrix"></a> <font size="-1">colorMatrix</font></center>
       </td>
       <td><font size="-1">const size_t order_, const double *color_matrix_</font></td>
       <td><font size="-1">apply color correction to the image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="comment"></a> <font size="-1">comment</font></center>
       </td>
       <td><font size="-1">const std::string &amp;comment_</font></td>
       <td><font size="-1">Comment image (add comment string to
 image).&nbsp; By default, each image is commented with its file name.
 Use&nbsp; this&nbsp; method to&nbsp; assign a specific comment to the
 image.&nbsp; Optionally you can include the image filename, type,
 width, height, or other&nbsp; image&nbsp; attributes by embedding <a
  href="FormatCharacters.html">special format characters.</a> </font></td>
     </tr>
     <tr>
       <td style="text-align: center;" valign="middle"><font size="-1"><a
  name="compare"></a> compare<br>
       </font></td>
       <td valign="middle"><font size="-1">const Image &amp;reference_<br>
       </font></td>
       <td valign="top"><font size="-1">Compare current image with
 another image. Sets <a href="#meanErrorPerPixel">meanErrorPerPixel</a>
 , <a href="#normalizedMaxError">normalizedMaxError</a> , and <a
  href="#normalizedMeanError">normalizedMeanError</a> in the current
 image. False is returned if the images are identical. An ErrorOption
 exception is thrown if the reference image columns, rows, colorspace,
 or
 matte differ from the current image.</font><br>
       </td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="3">
       <center><a name="composite"></a> <font size="-1">composite</font></center>
       </td>
       <td><font size="-1">const <a href="Image.html">Image</a>
 &amp;compositeImage_, ssize_t xOffset_, ssize_t yOffset_, <a
  href="Enumerations.html#CompositeOperator"> CompositeOperator</a>
 compose_ = <i>InCompositeOp</i></font></td>
       <td><font size="-1">Compose an image onto the current image at
 offset specified by <i>xOffset_</i>, <i>yOffset_ </i>using the
 composition algorithm specified by <i>compose_</i>.&nbsp;</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Image.html">Image</a>
 &amp;compositeImage_, const <a href="Geometry.html">Geometry</a>
 &amp;offset_, <a href="Enumerations.html#CompositeOperator">CompositeOperator</a>
 compose_ = <i>InCompositeOp</i></font></td>
       <td><font size="-1">Compose an image onto the current image at
 offset specified by <i>offset_</i> using the composition algorithm
 specified by <i>compose_</i> .&nbsp;</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Image.html">Image</a>
 &amp;compositeImage_, <a href="Enumerations.html#GravityType">GravityType</a>
 gravity_, <a href="Enumerations.html#CompositeOperator">CompositeOperator</a>
 compose_ = <i>InCompositeOp</i></font></td>
       <td><font size="-1">Compose an image onto the current image with
 placement specified by <i>gravity_ </i>using the composition
 algorithm
 specified by <i>compose_</i>.&nbsp;</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="contrast"></a> <font size="-1">contrast</font></center>
       </td>
       <td><font size="-1">size_t sharpen_</font></td>
       <td><font size="-1">Contrast image (enhance intensity differences
 in image)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="convolve"></a> <font size="-1">convolve</font></center>
       </td>
       <td><font size="-1">size_t order_, const double *kernel_</font></td>
       <td><font size="-1">Convolve image.&nbsp; Applies a user-specfied
 convolution to the image. The <i>order_</i> parameter represents the
 number of columns and rows in the filter kernel, and <i>kernel_</i>
 is a two-dimensional array of doubles representing the convolution
 kernel to apply.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="crop"></a> <font size="-1">crop</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_</font></td>
       <td><font size="-1">Crop image (subregion of original image)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="cycleColormap"></a> <font size="-1">cycleColormap</font></center>
       </td>
       <td><font size="-1">int amount_</font></td>
       <td><font size="-1">Cycle image colormap</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="despeckle"></a> <font size="-1">despeckle</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Despeckle image (reduce speckle noise)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="display"></a> <font size="-1">display</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Display image on screen.</font> <br>
       <font size="-1"><b><font color="#ff0000">Caution: </font></b> if
 an image format is is not compatible with the display visual (e.g.
 JPEG on a colormapped display) then the original image will be
 altered. Use a copy of the original if this is a problem.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="distort"></a> <font size="-1">distort</font></center>
       </td>
       <td><font size="-1">const DistortImageMethod method, const unsigned long number_arguments, const double *arguments, const bool bestfit = false </font></td>
       <td><font size="-1">Distort image.&nbsp; Applies a user-specfied
 distortion to the image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="2">
       <center><a name="draw"></a> <font size="-1">draw</font></center>
       </td>
       <td><font size="-1">const <a href="Drawable.html">Drawable</a>
 &amp;drawable_</font></td>
       <td><font size="-1">Draw shape or text on image.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const std::list&lt;<a href="Drawable.html">Drawable</a>
 &gt; &amp;drawable_</font></td>
       <td><font size="-1">Draw shapes or text on image using a set of
 Drawable objects contained in an STL list. Use of this method improves
 drawing performance and allows batching draw objects together in a
 list for repeated use.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="edge"></a> <font size="-1">edge</font></center>
       </td>
       <td><font size="-1">size_t radius_ = 0.0</font></td>
       <td><font size="-1">Edge image (hilight edges in image).&nbsp;
 The radius is the radius of the pixel neighborhood.. Specify a radius
 of zero for automatic radius selection.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="emboss"></a> <font size="-1">emboss</font></center>
       </td>
       <td><font size="-1">const double radius_ = 1, const double sigma_
 = 0.5</font></td>
       <td><font size="-1">Emboss image (hilight edges with 3D effect).
 The <i> radius_</i> parameter specifies the radius of the Gaussian, in
 pixels, not counting the center pixel.&nbsp; The <i>sigma_</i>
 parameter specifies the standard deviation of the Laplacian, in pixels.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="enhance"></a> <font size="-1">enhance</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Enhance image (minimize noise)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="equalize"></a> <font size="-1">equalize</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Equalize image (histogram equalization)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="erase"></a> <font size="-1">erase</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Set all image pixels to the current
 background color.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="4">
       <center><a name="extent"></a> <font size="-1">extent</font></td>
       <td><font size="-1">const <a href="Geometry.html"> Geometry</a> &amp;geometry_</font></td>
       <td rowspan="2"><font size="-1">extends the image as defined by the geometry, gravity, and image background color.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_, const <a href="Color.html">Color</a> &amp;backgroundColor_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html"> Geometry</a> &amp;geometry_, const <a href="Enumerations.html#GravityType">GravityType</a>
 &amp;gravity_</font></td>
       <td rowspan="2"><font size="-1">extends the image as defined by the geometry, gravity, and image background color.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_, const <a href="Color.html">Color</a> &amp;backgroundColor_,
 const <a href="Enumerations.html#GravityType">GravityType</a> &amp;gravity_</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="flip"></a> <font size="-1">flip</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Flip image (reflect each scanline in the
 vertical direction)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="4">
       <center><a name="floodFillColor"></a> <font size="-1">floodFill-</font>
       <br>
       <font size="-1">Color</font></center>
       </td>
       <td><font size="-1">size_t x_, size_t y_, const <a
  href="Color.html"> Color</a> &amp;fillColor_</font></td>
       <td rowspan="2"><font size="-1">Flood-fill color across pixels
 that match the color of the target pixel and are neighbors of the
 target pixel. Uses current fuzz setting when determining color match.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;point_, const <a href="Color.html">Color</a> &amp;fillColor_</font></td>
     </tr>
     <tr>
       <td><font size="-1">size_t x_, size_t y_, const <a
  href="Color.html"> Color</a> &amp;fillColor_, const <a
  href="Color.html">Color</a>
 &amp;borderColor_</font></td>
       <td rowspan="2"><font size="-1">Flood-fill color across pixels
 starting at target-pixel and stopping at pixels matching specified
 border color. Uses current fuzz setting when determining color match.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;point_, const <a href="Color.html">Color</a> &amp;fillColor_,
 const <a href="Color.html">Color</a> &amp;borderColor_</font></td>
     </tr>
     <tr>
       <td style="text-align: center;"><a name="floodFillOpacity"></a> <font
  size="-1">floodFillOpacity</font></td>
       <td><font size="-1">const long x_, const long y_, const unsigned
 int opacity_, const PaintMethod method_</font></td>
       <td><font size="-1">Floodfill pixels matching color (within fuzz
 factor) of target pixel(x,y) with replacement opacity value using
 method.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="4">
       <center><a name="floodFillTexture"></a> <font size="-1">floodFill-</font>
       <br>
       <font size="-1">Texture</font></center>
       </td>
       <td><font size="-1">size_t x_, size_t y_,&nbsp; const
 Image &amp;texture_</font></td>
       <td rowspan="2"><font size="-1">Flood-fill texture across pixels
 that match the color of the target pixel and are neighbors of the
 target pixel. Uses current fuzz setting when determining color match.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;point_, const Image &amp;texture_</font></td>
     </tr>
     <tr>
       <td><font size="-1">size_t x_, size_t y_, const Image
 &amp;texture_, const <a href="Color.html">Color</a> &amp;borderColor_</font></td>
       <td rowspan="2"><font size="-1">Flood-fill texture across pixels
 starting at target-pixel and stopping at pixels matching specified
 border color. Uses current fuzz setting when determining color match.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;point_, const Image &amp;texture_, const <a href="Color.html">
 Color</a>
 &amp;borderColor_</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="flop"></a> <font size="-1">flop</font></center>
       </td>
       <td><font size="-1">void&nbsp;</font></td>
       <td><font size="-1">Flop image (reflect each scanline in the
 horizontal direction)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="forwardFourierTransform"></a> <font size="-1">forwardFourierTransform</font></center>
       </td>
       <td><font size="-1">const bool magnitude</font></td>
       <td><font size="-1">Implements the discrete Fourier transform (DFT) of the image either as a magnitude / phase or real / imaginary image pair.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="2">
       <center><a name="frame"></a> <font size="-1">frame</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_ = "25x25+6+6"</font></td>
       <td rowspan="2"><font size="-1">Add decorative frame around image</font></td>
     </tr>
     <tr>
       <td><font size="-1">size_t width_, size_t height_,
 int x_, ssize_t y_, ssize_t innerBevel_ = 0, ssize_t outerBevel_ = 0</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fx"></a> <font size="-1">fx</font></center>
       </td>
       <td><font size="-1">const std::string expression, const Magick::ChannelType channel</font></td>
       <td><font size="-1">Fx image.&nbsp; Applies a mathematical
 expression to the image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="2">
       <center><a name="gamma"></a> <font size="-1">gamma</font></center>
       </td>
       <td><font size="-1">double gamma_</font></td>
       <td><font size="-1">Gamma correct image (uniform red, green, and
 blue correction).</font></td>
     </tr>
     <tr>
       <td><font size="-1">double gammaRed_, double gammaGreen_, double
 gammaBlue_</font></td>
       <td><font size="-1">Gamma correct red, green, and blue channels
 of image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="gaussianBlur"></a> <font size="-1">gaussianBlur</font></center>
       </td>
       <td><font size="-1">const double width_, const double sigma_</font></td>
       <td><font size="-1">Gaussian blur image. The number of neighbor
 pixels to be included in the convolution mask is specified by
 'width_'.&nbsp; For example, a width of one gives a (standard) 3x3
 convolution mask. The standard deviation of the gaussian bell curve is
 specified by 'sigma_'.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="gaussianBlurChannel"></a>gaussianBlurChannel<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const ChannelType
 channel_, const double radius_ = 0.0, const double sigma_ = 1.0<br>
       </small></td>
       <td style="vertical-align: middle;"><font size="-1">Gaussian blur
 an image channel. </font><font size="-1">The <span
  style="font-style: italic;">channel_</span> parameter specifies the
 channel to blur. </font><font size="-1">The number of neighbor
 pixels to be included in the convolution mask is specified by
 'width_'.&nbsp; For example, a width of one gives a (standard) 3x3
 convolution mask. The standard deviation of the gaussian bell curve is
 specified by 'sigma_'.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" valign="middle"><font size="-1"><a
  name="haldClut"></a> haldClut<br>
       </font></td>
       <td valign="middle"><font size="-1">const Image &amp;reference_<br>
       </font></td>
       <td valign="top"><font size="-1">apply a Hald color lookup table to the image.</font><br>
       </td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="implode"></a> <font size="-1">implode</font></center>
       </td>
       <td><font size="-1">const double factor_</font></td>
       <td><font size="-1">Implode image (special effect)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="inverseFourierTransform"></a> <font size="-1">inverseFourierTransform</font></center>
       </td>
       <td><font size="-1">const Image &amp;phaseImage_, const bool magnitude_</font></td>
       <td><font size="-1">implements the inverse discrete Fourier transform (DFT) of the image either as a magnitude / phase or real / imaginary image pair.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="label"></a> <font size="-1">label</font></center>
       </td>
       <td><font size="-1">const string &amp;label_</font></td>
       <td><font size="-1">Assign a label to an image. Use this option
 to&nbsp; assign&nbsp; a&nbsp; specific label to the image. Optionally
 you can include the image filename, type, width, height, or scene
 number in the label by embedding&nbsp; <a href="FormatCharacters.html">
 special format characters.</a> If the first character of string is @,
 the
 image label is read from a file titled by the remaining characters in
 the string. When converting to Postscript, use this&nbsp; option to
 specify a header string to print above the image.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: top; text-align: center;"><small><a
  name="level"></a>level<br>
       </small></td>
       <td style="vertical-align: top;"><small>const double black_point,
 const double white_point, const double mid_point=1.0<br>
       </small></td>
       <td style="vertical-align: top;"><small>Level image. Adjust the
 levels of the image by scaling the colors falling between specified
 white and black points to the full available quantum range. The
 parameters provided represent the black, mid (gamma), and white
 points.&nbsp; The black point specifies the darkest color in the image.
 Colors darker than the black point are set to zero. Mid point (gamma)
 specifies a gamma correction to apply to the image. White point
 specifies the lightest color in the image.&nbsp; Colors brighter than
 the white point are set to the maximum quantum value. The black and
 white point have the valid range 0 to MaxRGB while mid (gamma) has a
 useful range of 0 to ten.<br>
       </small></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="levelChannel"></a>levelChannel<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const ChannelType
 channel, const double black_point, const double white_point, const
 double mid_point=1.0<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Level image channel.
 Adjust the levels of the image channel by scaling the values falling
 between specified white and black points to the full available quantum
 range. The parameters provided represent the black, mid (gamma), and
 white points. The black point specifies the darkest color in the image.
 Colors darker than the black point are set to zero. Mid point (gamma)
 specifies a gamma correction to apply to the image. White point
 specifies the lightest color in the image. Colors brighter than the
 white point are set to the maximum quantum value. The black and white
 point have the valid range 0 to MaxRGB while mid (gamma) has a useful
 range of 0 to ten.<br>
       </small></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="magnify"></a> <font size="-1">magnify</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Magnify image by integral size</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="map"></a> <font size="-1">map</font></center>
       </td>
       <td><font size="-1">const Image &amp;mapImage_ , bool dither_ =
 false</font></td>
       <td><font size="-1">Remap image colors with closest color from
 reference image. Set dither_ to <i>true</i> in to apply
 Floyd/Steinberg
 error diffusion to the image. By default, color reduction chooses an
 optimal&nbsp; set&nbsp; of colors that best represent the original
 image. Alternatively, you can&nbsp; choose&nbsp; a&nbsp;
 particular&nbsp; set&nbsp; of colors&nbsp; from&nbsp; an image file
 with this option.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="matteFloodfill"></a> <font size="-1">matteFloodfill</font></center>
       </td>
       <td><font size="-1">const <a href="Color.html">Color</a>
 &amp;target_, const size_t&nbsp; opacity_, const ssize_t x_, const
 int
 y_, <a href="Enumerations.html#PaintMethod">PaintMethod</a> method_</font></td>
       <td><font size="-1">Floodfill designated area with a replacement
 opacity value.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;"><a name="medianFilter"></a> <font
  size="-1">medianFilter</font></td>
       <td><font size="-1">const double radius_ = 0.0</font></td>
       <td><font size="-1">Filter image by replacing each pixel
 component with the median color in a circular neighborhood</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="minify"></a> <font size="-1">minify</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Reduce image by integral size</font></td>
     </tr>
     <tr>
       <td style="text-align: center;"><a name="modifyImage"></a> <font
  size="-1">modifyImage</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Prepare to update image. Ensures that there
 is only one reference to the underlying image so that the underlying
 image may be safely modified without effecting previous generations of
 the image. Copies the underlying image to a new image if necessary.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="modulate"></a> <font size="-1">modulate</font></center>
       </td>
       <td><font size="-1">double brightness_, double saturation_,
 double hue_</font></td>
       <td><font size="-1">Modulate percent hue, saturation, and
 brightness of an image. Modulation of saturation and brightness is as a
 ratio of the current value (1.0 for no change). Modulation of hue is an
 absolute rotation of -180 degrees to +180 degrees from the current
 position corresponding to an argument range of 0 to 2.0 (1.0 for no
 change).</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="motionBlur"></a>motionBlur<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const double radius_,
 const double sigma_, const double angle_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Motion blur image with
 specified blur factor. The radius_ parameter specifies the radius of
 the Gaussian, in pixels, not counting the center pixel.&nbsp; The
 sigma_ parameter specifies the standard deviation of the Laplacian, in
 pixels. The angle_ parameter specifies the angle the object appears to
 be comming from (zero degrees is from the right).<br>
       </small></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="negate"></a> <font size="-1">negate</font></center>
       </td>
       <td><font size="-1">bool grayscale_ = false</font></td>
       <td><font size="-1">Negate colors in image.&nbsp; Replace every
 pixel with its complementary color (white becomes black, yellow becomes
 blue, etc.).&nbsp; Set grayscale to only negate grayscale values in
 image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="normalize"></a> <font size="-1">normalize</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Normalize image (increase contrast by
 normalizing the pixel values to span the full range of color values).</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="oilPaint"></a> <font size="-1">oilPaint</font></center>
       </td>
       <td><font size="-1">size_t radius_ = 3</font></td>
       <td><font size="-1">Oilpaint image (image looks like oil painting)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="opacity"></a> <font size="-1">opacity</font></center>
       </td>
       <td><font size="-1">size_t opacity_</font></td>
       <td><font size="-1">Set or attenuate the opacity channel in the
 image. If the image pixels are opaque then they are set to the
 specified
 opacity value, otherwise they are blended with the supplied opacity
 value.&nbsp; The value of opacity_ ranges from 0 (completely opaque) to
       <i>MaxRGB</i>
 . The defines <i>OpaqueOpacity</i> and <i>TransparentOpacity</i> are
 available to specify completely opaque or completely transparent,
 respectively.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="opaque"></a> <font size="-1">opaque</font></center>
       </td>
       <td><font size="-1">const <a href="Color.html">Color</a>
 &amp;opaqueColor_, const <a href="Color.html">Color</a> &amp;penColor_</font></td>
       <td><font size="-1">Change color of pixels matching opaqueColor_
 to specified penColor_.</font></td>
     </tr>
     <tr nosave="">
       <td style="text-align: center;" rowspan="2" nosave="">
       <center><a name="ping"></a> <font size="-1">ping</font></center>
       </td>
       <td><font size="-1">const std::string &amp;imageSpec_</font></td>
       <td rowspan="2" nosave=""><font size="-1">Ping is similar to read
 except only enough of the image is read to determine the image columns,
 rows, and filesize.&nbsp; The <a href="#columns">columns</a> </font>,
       <font size="-1"><a href="#rows">rows</a> , and <a
  href="#fileSize">fileSize</a>
 attributes are valid after invoking ping.&nbsp; The image data is not
 valid after calling ping.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const Blob &amp;blob_</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="process"></a>process<br>
       </small></td>
       <td style="vertical-align: middle;"><small>std::string name_,
 const ssize_t argc_, char **argv_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Execute the named
 process module, passing any arguments via an argument vector, with
 argc_
 specifying the number of arguments in the vector, and argv_ passing the
 address of an array of null-terminated C strings which constitute the
 argument vector. An exception is thrown if the requested process module
 does not exist, fails to load, or fails during execution.</small><br>
       </td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="quantize"></a> <font size="-1">quantize</font></center>
       </td>
       <td><font size="-1">bool measureError_ = false</font></td>
       <td><font size="-1">Quantize image (reduce number of colors). Set
 measureError_ to true in order to calculate error attributes.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="raise"></a> <font size="-1">raise</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_ = "6x6+0+0",&nbsp; bool raisedFlag_ =&nbsp; false</font></td>
       <td><font size="-1">Raise image (lighten or darken the edges of
 an image to give a 3-D raised or lowered effect)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="8">
       <center><a name="read"></a> <font size="-1">read</font></center>
       </td>
       <td><font size="-1">const string &amp;imageSpec_</font></td>
       <td><font size="-1">Read image into current object</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;size_, const std::string &amp;imageSpec_</font></td>
       <td><font size="-1">Read image of specified size into current
 object. This form is useful for images that do not specifiy their size
 or to specify a size hint for decoding an image. For example, when
 reading a Photo CD, JBIG, or JPEG image, a size request causes the
 library to return an image which is the next resolution greater or
 equal to the specified size. This may result in memory and time savings.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a> &amp;blob_</font></td>
       <td rowspan="5"><font size="-1">Read encoded image of specified
 size from an in-memory <a href="Blob.html">BLOB</a> into current
 object. Depending on the method arguments, the Blob size, depth, and
 format may also be specified. Some image formats require that size be
 specified. The default ImageMagick uses for depth depends on its
 Quantum size (8 or 16).&nbsp; If ImageMagick's Quantum size does not
 match that of the image, the depth may need to be specified.
 ImageMagick can usually automagically detect the image's format.
 When
 a format can't be automagically detected, the format must be specified.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size_,
 size_t depth_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size_,
 unsigned short depth_, const string &amp;magick_&nbsp;</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;blob_, const <a href="Geometry.html">Geometry</a> &amp;size_,
 const
 string &amp;magick_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const size_t width_, const size_t
 height_, std::string map_, const StorageType type_, const void *pixels_</font></td>
       <td><font size="-1">Read image based on an array of image pixels.
 The pixel data must be in scanline order top-to-bottom. The data can be
 character, short int, integer, float, or double. Float and double
 require the pixels to be normalized [0..1]. The other types are
 [0..MaxRGB].&nbsp; For example, to create a 640x480 image from
 unsigned red-green-blue character data, use</font>
       <p><font size="-1">&nbsp; image.read( 640, 480, "RGB", CharPixel,
 pixels );</font> </p>
       <p><font size="-1">The parameters are as follows:</font> <br>
 &nbsp;
       <table border="0" width="100%">
         <tbody>
           <tr>
             <td><font size="-1">width_</font></td>
             <td><font size="-1">Width in pixels of the image.</font></td>
           </tr>
           <tr>
             <td><font size="-1">height_</font></td>
             <td><font size="-1">Height in pixels of the image.</font></td>
           </tr>
           <tr>
             <td><font size="-1">map_</font></td>
             <td><font size="-1">This character string can be any
 combination or order of R = red, G = green, B = blue, A = alpha, C =
 cyan, Y = yellow M = magenta, and K = black. The ordering reflects the
 order of the pixels in the supplied pixel array.</font></td>
           </tr>
           <tr>
             <td><font size="-1">type_</font></td>
             <td><font size="-1">Pixel storage type (CharPixel,
 ShortPixel, IntegerPixel, FloatPixel, or DoublePixel)</font></td>
           </tr>
           <tr>
             <td><font size="-1">pixels_</font></td>
             <td><font size="-1">This array of values contain the pixel
 components as defined by the map_ and type_ parameters. The length of
 the arrays must equal the area specified by the width_ and height_
 values and type_ parameters.</font></td>
           </tr>
         </tbody>
       </table>
       </p>
       </td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="reduceNoise"></a> <font size="-1">reduceNoise</font></center>
       </td>
       <td><font size="-1">const double order_</font></td>
       <td><font size="-1">reduce noise in image using a noise peak elimination filter.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="randomThreshold"></a>randomThreshold<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const Geometry
 &amp;thresholds_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Random threshold the
 image. Changes the value of individual pixels based on the intensity of
 each pixel compared to a random threshold.&nbsp; The result is a
 low-contrast, two color image.&nbsp; The thresholds_ argument is a
 geometry containing LOWxHIGH thresholds.&nbsp; If the string contains
 2x2, 3x3, or 4x4, then an ordered dither of order 2, 3, or 4 will be
 performed instead. This is a very fast alternative to 'quantize' based
 dithering.<br>
       </small></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="randomThresholdChannel"></a>randomThresholdChannel<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const Geometry
 &amp;thresholds_, const ChannelType channel_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Random threshold an
 image channel. Similar to <a href="#randomThreshold">randomThreshold</a>()
 but restricted to the specified channel.<br>
       </small></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="roll"></a> <font size="-1">roll</font></center>
       </td>
       <td><font size="-1">int columns_, ssize_t rows_</font></td>
       <td><font size="-1">Roll image (rolls image vertically and
 horizontally) by specified number of columnms and rows)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="rotate"></a> <font size="-1">rotate</font></center>
       </td>
       <td><font size="-1">double degrees_</font></td>
       <td><font size="-1">Rotate image counter-clockwise by specified
 number of degrees.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="sample"></a> <font size="-1">sample</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_&nbsp;</font></td>
       <td><font size="-1">Resize image by using pixel sampling algorithm</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="scale"></a> <font size="-1">scale</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_</font></td>
       <td><font size="-1">Resize image by using simple ratio algorithm</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="segment"></a> <font size="-1">segment</font></center>
       </td>
       <td><font size="-1">double clusterThreshold_ = 1.0,</font> <br>
       <font size="-1">double smoothingThreshold_ = 1.5</font></td>
       <td><font size="-1">Segment (coalesce similar image components)
 by analyzing the histograms of the color components and identifying
 units that are homogeneous with the fuzzy c-means technique. Also uses <i>quantizeColorSpace</i>
 and <i>verbose</i> image attributes. Specify <i> clusterThreshold_</i>
 ,
 as the number&nbsp; of&nbsp; pixels&nbsp; each cluster&nbsp; must
 exceed
 the cluster threshold to be considered valid. <i>SmoothingThreshold_</i>
 eliminates noise in the&nbsp; second derivative of the histogram. As
 the
 value is&nbsp; increased, you can&nbsp; expect&nbsp; a&nbsp; smoother
 second derivative.&nbsp; The default is 1.5.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="shade"></a> <font size="-1">shade</font></center>
       </td>
       <td><font size="-1">double azimuth_ = 30, double elevation_ = 30,</font>
       <br>
       <font size="-1">bool colorShading_ = false</font></td>
       <td><font size="-1">Shade image using distant light source.
 Specify <i> azimuth_</i> and <i>elevation_</i> as the&nbsp;
 position&nbsp; of&nbsp; the light source. By default, the shading
 results as a grayscale image.. Set c<i>olorShading_</i> to <i>true</i>
 to
 shade the red, green, and blue components of the image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="sharpen"></a> <font size="-1">sharpen</font></center>
       </td>
       <td><font size="-1">const double radius_ = 1, const double sigma_
 = 0.5</font></td>
       <td><font size="-1">Sharpen pixels in image.&nbsp; The <i>radius_</i>
 parameter specifies the radius of the Gaussian, in pixels, not counting
 the center pixel.&nbsp; The <i>sigma_</i> parameter specifies the
 standard deviation of the Laplacian, in pixels.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="sharpenChannel"></a>sharpenChannel<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const ChannelType
 channel_, const double radius_ = 0.0, const double sigma_ = 1.0<br>
       </small></td>
       <td style="vertical-align: middle;"><font size="-1">Sharpen pixel
 quantums in an image channel&nbsp; The <span
  style="font-style: italic;">channel_</span> parameter specifies the
 channel to sharpen..&nbsp; The <i>radius_</i>
 parameter specifies the radius of the Gaussian, in pixels, not counting
 the center pixel.&nbsp; The <i>sigma_</i> parameter specifies the
 standard deviation of the Laplacian, in pixels.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="shave"></a> <font size="-1">shave</font></center>
       </td>
       <td><font size="-1">const Geometry &amp;geometry_</font></td>
       <td><font size="-1">Shave pixels from image edges.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="shear"></a> <font size="-1">shear</font></center>
       </td>
       <td><font size="-1">double xShearAngle_, double yShearAngle_</font></td>
       <td><font size="-1">Shear image (create parallelogram by sliding
 image by X or Y axis).&nbsp; Shearing slides one edge of an image along
 the X&nbsp; or&nbsp; Y axis,&nbsp; creating&nbsp; a
 parallelogram.&nbsp; An X direction shear slides an edge along the X
 axis, while&nbsp; a&nbsp; Y&nbsp; direction shear&nbsp; slides&nbsp;
 an edge along the Y axis.&nbsp; The amount of the shear is controlled
 by a shear angle.&nbsp; For X direction&nbsp; shears,&nbsp; x&nbsp;
 degrees is measured relative to the Y axis, and similarly, for Y
 direction shears&nbsp; y&nbsp; degrees is measured relative to the X
 axis. Empty triangles left over from shearing the&nbsp; image&nbsp; are
 filled&nbsp; with&nbsp; the&nbsp; color&nbsp; defined as <i>borderColor</i>.&nbsp;</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="solarize"></a> <font size="-1">solarize</font></center>
       </td>
       <td><font size="-1">double factor_ = 50.0</font></td>
       <td><font size="-1">Solarize image (similar to effect seen when
 exposing a photographic film to light during the development process)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="splice"></a> <font size="-1">splice</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_</font></td>
       <td><font size="-1">splice the background color into the image</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="spread"></a> <font size="-1">spread</font></center>
       </td>
       <td><font size="-1">size_t amount_ = 3</font></td>
       <td><font size="-1">Spread pixels randomly within image by
 specified amount</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="stegano"></a> <font size="-1">stegano</font></center>
       </td>
       <td><font size="-1">const Image &amp;watermark_</font></td>
       <td><font size="-1">Add a digital watermark to the image (based
 on second image)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="sparseColor"></a> <font size="-1">sparseColor</font></center>
       </td>
       <td><font size="-1">const ChannelType channel, const SparseColorMethod method, const unsigned long number_arguments, const double *arguments </font></td>
       <td><font size="-1">Sparse color image, given a set of coordinates, interpolates the colors found at those coordinates, across the whole image, using various methods.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="statistics"></a> <font size="-1">statistics</font></center>
       </td>
       <td><font size="-1">ImageStatistics *statistics</font></td>
       <td><font size="-1">Obtain image statistics. Statistics are normalized to the range of 0.0 to 1.0 and are output to the specified ImageStatistics structure.  The structure includes members maximum, minimum, mean, standard_deviation, and variance for each of these channels: red, green, blue, and opacity (e.g. statistics->red.maximum).</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="stereo"></a> <font size="-1">stereo</font></center>
       </td>
       <td><font size="-1">const Image &amp;rightImage_</font></td>
       <td><font size="-1">Create an image which appears in stereo when
 viewed with red-blue glasses (Red image on left, blue on right)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="swirl"></a> <font size="-1">swirl</font></center>
       </td>
       <td><font size="-1">double degrees_</font></td>
       <td><font size="-1">Swirl image (image pixels are rotated by
 degrees)</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="texture"></a> <font size="-1">texture</font></center>
       </td>
       <td><font size="-1">const Image &amp;texture_</font></td>
       <td><font size="-1">Layer a texture on pixels matching image
 background color.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="threshold"></a> <font size="-1">threshold</font></center>
       </td>
       <td><font size="-1">double threshold_</font></td>
       <td><font size="-1">Threshold image</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="2">
       <center><a name="transform"></a> <font size="-1">transform</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;imageGeometry_</font></td>
       <td rowspan="2"><font size="-1">Transform image based on image
 and crop geometries. Crop geometry is optional.</font></td>
     </tr>
     <tr>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;imageGeometry_, const <a href="Geometry.html">Geometry</a>
 &amp;cropGeometry_&nbsp;</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="transparent"></a> <font size="-1">transparent</font></center>
       </td>
       <td><font size="-1">const <a href="Color.html">Color</a>
 &amp;color_</font></td>
       <td><font size="-1">Add matte image to image, setting pixels
 matching color to transparent.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="trim"></a> <font size="-1">trim</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Trim edges that are the background color from
 the image.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="unsharpmask"></a> <font size="-1">unsharpmask</font></center>
       </td>
       <td><font size="-1">double radius_, double sigma_, double
 amount_, double threshold_</font></td>
       <td><font size="-1">Sharpen the image using the unsharp mask
 algorithm. The <i>radius</i>_
 parameter specifies the radius of the Gaussian, in pixels, not
 counting the center pixel. The <i>sigma</i>_ parameter specifies the
 standard deviation of the Gaussian, in pixels. The <i>amount</i>_
 parameter specifies the percentage of the difference between the
 original and the blur image that is added back into the original. The <i>threshold</i>_
 parameter specifies the threshold in pixels needed to apply the
 diffence amount.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="unsharpmaskChannel"></a>unsharpmaskChannel<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const ChannelType
 channel_, const double radius_, const double sigma_, const double
 amount_, const double threshold_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Sharpen an image
 channel using the unsharp mask algorithm. The <span
  style="font-style: italic;">channel_</span> parameter specifies the
 channel to sharpen. </small><font size="-1">The <i>radius</i>_
 parameter specifies the radius of the Gaussian, in pixels, not
 counting the center pixel. The <i>sigma</i>_ parameter specifies the
 standard deviation of the Gaussian, in pixels. The <i>amount</i>_
 parameter specifies the percentage of the difference between the
 original and the blur image that is added back into the original. The <i>threshold</i>_
 parameter specifies the threshold in pixels needed to apply the
 diffence amount.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="wave"></a> <font size="-1">wave</font></center>
       </td>
       <td><font size="-1">double amplitude_ = 25.0, double wavelength_
 = 150.0</font></td>
       <td><font size="-1">Alter an image along a sine wave.</font></td>
     </tr>
     <tr>
       <td style="text-align: center;" rowspan="5">
       <center><a name="write"></a> <font size="-1">write</font></center>
       </td>
       <td><font size="-1">const string &amp;imageSpec_</font></td>
       <td><font size="-1">Write image to a file using filename i<i>mageSpec_</i>
 .</font> <br>
       <font size="-1"><b><font color="#ff0000">Caution: </font></b> if
 an image format is selected which is capable of supporting fewer
 colors than the original image or quantization has been requested, the
 original image will be quantized to fewer colors. Use a copy of the
 original if this is a problem.</font></td>
     </tr>
     <tr>
       <td><font size="-1"><a href="Blob.html">Blob</a> *blob_</font></td>
       <td rowspan="3"><font size="-1">Write image to a in-memory <a
  href="Blob.html"> BLOB</a> stored in <i>blob_</i>. The <i>magick</i>_
 parameter specifies the image format to write (defaults to <a
  href="#magick">magick</a> ). The depth_ parameter species the image
 depth (defaults to <a href="#depth"> depth</a> ).</font> <br>
       <font size="-1"><b><font color="#ff0000">Caution: </font></b> if
 an image format is selected which is capable of supporting fewer
 colors than the original image or quantization has been requested, the
 original image will be quantized to fewer colors. Use a copy of the
 original if this is a problem.</font></td>
     </tr>
     <tr>
       <td><font size="-1"><a href="Blob.html">Blob</a> *blob_,
 std::string &amp;magick_</font></td>
     </tr>
     <tr>
       <td><font size="-1"><a href="Blob.html">Blob</a> *blob_,
 std::string &amp;magick_, size_t depth_</font></td>
     </tr>
     <tr>
       <td><font size="-1">const ssize_t x_, const ssize_t y_, const unsigned
 int columns_, const size_t rows_, const std::string &amp;map_,
 const StorageType type_, void *pixels_</font></td>
       <td><font size="-1">Write pixel data into a buffer you supply.
 The data is saved either as char, short int, integer, float or double
 format in the order specified by the type_ parameter. For example, we
 want to extract scanline 1 of a 640x480 image as character data in
 red-green-blue order:</font>
       <p><font size="-1">&nbsp; image.write(0,0,640,1,"RGB",0,pixels);</font>
       </p>
       <p><font size="-1">The parameters are as follows:</font> <br>
 &nbsp;
       <table border="0" width="100%">
         <tbody>
           <tr>
             <td><font size="-1">x_</font></td>
             <td><font size="-1">Horizontal ordinate of left-most
 coordinate of region to extract.</font></td>
           </tr>
           <tr>
             <td><font size="-1">y_</font></td>
             <td><font size="-1">Vertical ordinate of top-most
 coordinate of region to extract.</font></td>
           </tr>
           <tr>
             <td><font size="-1">columns_</font></td>
             <td><font size="-1">Width in pixels of the region to
 extract.</font></td>
           </tr>
           <tr>
             <td><font size="-1">rows_</font></td>
             <td><font size="-1">Height in pixels of the region to
 extract.</font></td>
           </tr>
           <tr>
             <td><font size="-1">map_</font></td>
             <td><font size="-1">This character string can be any
 combination or order of R = red, G = green, B = blue, A = alpha, C =
 cyan, Y = yellow, M = magenta, and K = black. The ordering reflects
 the order of the pixels in the supplied pixel array.</font></td>
           </tr>
           <tr>
             <td><font size="-1">type_</font></td>
             <td><font size="-1">Pixel storage type (CharPixel,
 ShortPixel, IntegerPixel, FloatPixel, or DoublePixel)</font></td>
           </tr>
           <tr>
             <td><font size="-1">pixels_</font></td>
             <td><font size="-1">This array of values contain the pixel
 components as defined by the map_ and type_ parameters. The length of
 the arrays must equal the area specified by the width_ and height_
 values and type_ parameters.</font></td>
           </tr>
         </tbody>
       </table>
       </p>
       </td>
     </tr>
     <tr>
       <td style="text-align: center;">
       <center><a name="zoom"></a> <font size="-1">zoom</font></center>
       </td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_</font></td>
       <td><font size="-1">Zoom image to specified size.</font></td>
     </tr>
   </tbody>
 </table>
 </p>
 <center>
 <h3> <a name="Image Attributes"></a> Image Attributes</h3>
 </center>
 Image attributes are set and obtained via methods in Image. Except for
 methods which accept pointer arguments (e.g. c<tt>hromaBluePrimary)</tt>
 all methods return attributes by value.
 <p>Image attributes are easily used. For example, to set the resolution
 of the TIFF file "file.tiff" to 150 dots-per-inch (DPI) in both the
 horizontal and vertical directions, you can use the following example
 code: </p>
 <blockquote><font color="#663366">string filename("file.tiff");</font> <br>
   <font color="#663366">Image image;</font> <br>
   <font color="#663366">image.read(filename);</font> <br>
   <font color="#663366">image.resolutionUnits(PixelsPerInchResolution);</font>
   <br>
   <font color="#663366">image.density(Geometry(150,150));&nbsp;&nbsp;
 // could also use image.density("150x150")</font> <br>
   <font color="#663366">image.write(filename)</font></blockquote>
 The supported image attributes and the method arguments required to
 obtain them are shown in the following table: <br>
 &nbsp;
 <table border="1">
   <caption>Image Attributes</caption> <tbody>
     <tr>
       <td>
       <center><b>Function</b></center>
       </td>
       <td>
       <center><b>Type</b></center>
       </td>
       <td>
       <center><b>Get Signature</b></center>
       </td>
       <td>
       <center><b>Set Signature</b></center>
       </td>
       <td>
       <center><b>Description</b></center>
       </td>
     </tr>
     <tr>
       <td>
       <center><a name="adjoin"></a> <font size="-1">adjoin</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">bool flag_</font></td>
       <td><font size="-1">Join images into a single multi-image file.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="antiAlias"></a> <font size="-1">antiAlias</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">bool flag_</font></td>
       <td><font size="-1">Control antialiasing of rendered Postscript
 and Postscript or TrueType fonts. Enabled by default.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="animationDelay"></a> <font size="-1">animation-</font>
       <br>
       <font size="-1">Delay</font></center>
       </td>
       <td><font size="-1">size_t (0 to 65535)</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t delay_</font></td>
       <td><font size="-1">Time in 1/100ths of a second (0 to 65535)
 which must expire before displaying the next image in an animated
 sequence. This option is useful for regulating the animation of a
 sequence&nbsp; of GIF images within Netscape.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="animationIterations"></a> <font size="-1">animation-</font>
       <br>
       <font size="-1">Iterations</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t iterations_</font></td>
       <td><font size="-1">Number of iterations to loop an animation
 (e.g. Netscape loop extension) for.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle; text-align: center;"><small><a
  name="attribute"></a>attribute<br>
       </small></td>
       <td style="vertical-align: middle;"><small>string<br>
       </small></td>
       <td style="vertical-align: top;" valign="top"><small>const
 std::string name_<br>
       </small></td>
       <td style="vertical-align: top;" valign="top"><small>const
 std::string name_, const std::string value_</small></td>
       <td style="vertical-align: middle;"><small>An arbitrary named
 image attribute. Any number of named attributes may be attached to the
 image. For example, the image comment is a named image attribute with
 the name "comment". EXIF tags are attached to the image as named
 attributes. Use the syntax "EXIF:&lt;tag&gt;" to request an EXIF tag
 similar to "EXIF:DateTime".</small><br>
       </td>
     </tr>
     <tr>
       <td>
       <center><a name="backgroundColor"></a> <font size="-1">background-</font>
       <br>
       <font size="-1">Color</font></center>
       </td>
       <td><font size="-1"><a href="Color.html">Color</a> </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a href="Color.html">Color</a>
 &amp;color_</font></td>
       <td><font size="-1">Image background color</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="backgroundTexture"></a> <font size="-1">background-</font>
       <br>
       <font size="-1">Texture</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const string &amp;texture_</font></td>
       <td><font size="-1">Image file name to use as the background
 texture. Does not modify image pixels.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="baseColumns"></a> <font size="-1">baseColumns</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Base image width (before transformations)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="baseFilename"></a> <font size="-1">baseFilename</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Base image filename (before transformations)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="baseRows"></a> <font size="-1">baseRows</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Base image height (before transformations)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="borderColor"></a> <font size="-1">borderColor</font></center>
       </td>
       <td><font size="-1"><a href="Color.html">Color</a> </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">&nbsp;const <a href="Color.html">Color</a>
 &amp;color_</font></td>
       <td><font size="-1">Image border color</font></td>
     </tr>
     <tr>
       <td><a name="boundingBox"></a> <font size="-1">boundingBox</font></td>
       <td><font size="-1">Geometry</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Return smallest bounding box enclosing
 non-border pixels. The current fuzz value is used when discriminating
 between pixels. This is the crop bounding box used by
 crop(Geometry(0,0)).</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="boxColor"></a> <font size="-1">boxColor</font></center>
       </td>
       <td><font size="-1"><a href="Color.html">Color</a> </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a href="Color.html">Color</a>
 &amp;boxColor_</font></td>
       <td><font size="-1">Base color that annotation text is rendered
 on.</font></td>
     </tr>
     <tr>
       <td><a name="cacheThreshold"></a> <font size="-1">cacheThreshold</font></td>
       <td><font size="-1">size_t</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">const int</font></td>
       <td><font size="-1">Pixel cache threshold in megabytes. Once this
 threshold is exceeded, all subsequent pixels cache operations are
 to/from disk. This is a static method and the attribute it sets is
 shared by all Image objects.</font></td>
     </tr>
     <tr>
       <td style="vertical-align: middle;" valign="middle"><small><a
  name="channelDepth"></a>channelDepth<br>
       </small></td>
       <td style="vertical-align: middle;" valign="middle"><small>unsigned
 int<br>
       </small></td>
       <td style="vertical-align: middle;" valign="middle"><small>const
 ChannelType channel_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const ChannelType
 channel_, const size_t depth_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Channel modulus depth.
 The channel modulus depth represents the minimum number of bits
 required
 to support the channel without loss. Setting the channel's modulus
 depth
 modifies the channel (i.e. discards resolution) if the requested
 modulus
 depth is less than the current modulus depth, otherwise the channel is
 not altered. There is no attribute associated with the modulus depth so
 the current modulus depth is obtained by inspecting the pixels. As a
 result, the depth returned may be less than the most recently set
 channel depth. Subsequent image processing may result in increasing the
 channel depth.<br>
       </small></td>
     </tr>
     <tr>
       <td>
       <center><a name="chromaBluePrimary"></a> <font size="-1">chroma-</font>
       <br>
       <font size="-1">BluePrimary</font></center>
       </td>
       <td><font size="-1">double x &amp; y</font></td>
       <td><font size="-1">double *x_, double *y_</font></td>
       <td><font size="-1">double x_, double y_</font></td>
       <td><font size="-1">Chromaticity blue primary point (e.g. x=0.15,
 y=0.06)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="chromaGreenPrimary"></a> <font size="-1">chroma-</font>
       <br>
       <font size="-1">GreenPrimary</font></center>
       </td>
       <td><font size="-1">double x &amp; y</font></td>
       <td><font size="-1">double *x_, double *y_</font></td>
       <td><font size="-1">double x_, double y_</font></td>
       <td><font size="-1">Chromaticity green primary point (e.g. x=0.3,
 y=0.6)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="chromaRedPrimary"></a> <font size="-1">chroma-</font>
       <br>
       <font size="-1">RedPrimary</font></center>
       </td>
       <td><font size="-1">double x &amp; y</font></td>
       <td><font size="-1">double *x_, double *y_</font></td>
       <td><font size="-1">double x_, double y_</font></td>
       <td><font size="-1">Chromaticity red primary point (e.g. x=0.64,
 y=0.33)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="chromaWhitePoint"></a> <font size="-1">chroma-</font>
       <br>
       <font size="-1">WhitePoint</font></center>
       </td>
       <td><font size="-1">double x &amp; y</font></td>
       <td><font size="-1">double*x_, double *y_</font></td>
       <td><font size="-1">double x_, double y_</font></td>
       <td><font size="-1">Chromaticity white point (e.g. x=0.3127,
 y=0.329)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="classType"></a> <font size="-1">classType</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#ClassType">ClassType</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">&nbsp;<a href="Enumerations.html#ClassType">ClassType</a>
 class_</font></td>
       <td><font size="-1">Image storage class.&nbsp; Note that
 conversion from a DirectClass image to a PseudoClass image may result
 in a loss of color due to the limited size of the palette (256 or
 65535 colors).</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="clipMask"></a> <font size="-1">clipMask</font></center>
       </td>
       <td><font size="-1">Image</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const Image &amp;clipMask_</font></td>
       <td><font size="-1">Associate a clip mask image with the current
 image. The clip mask image must have the same dimensions as the current
 image or an exception is thrown. Clipping occurs wherever pixels are
 transparent in the clip mask image. Clipping Pass an invalid image to
 unset an existing clip mask.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="colorFuzz"></a> <font size="-1">colorFuzz</font></center>
       </td>
       <td><font size="-1">double</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">double fuzz_</font></td>
       <td><font size="-1">Colors within this distance are considered
 equal. A number of algorithms search for a target&nbsp; color. By
 default the color must be exact. Use this option to match colors that
 are close to the target color in RGB space.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="colorMap"></a> <font size="-1">colorMap</font></center>
       </td>
       <td><font size="-1"><a href="Color.html">Color</a> </font></td>
       <td><font size="-1">size_t index_</font></td>
       <td><font size="-1">size_t index_, const <a
  href="Color.html"> Color</a> &amp;color_</font></td>
       <td><font size="-1">Color at colormap index.</font></td>
     </tr>
     <tr>
       <td valign="middle">
       <div align="center"><a name="colorMapSize"></a> <font size="-1">colorMapSize<br>
       </font></div>
       </td>
       <td valign="middle"><font size="-1">size_t<br>
       </font></td>
       <td valign="middle"><font size="-1">void<br>
       </font></td>
       <td valign="middle"><font size="-1">size_t entries_<br>
       </font></td>
       <td valign="middle"><font size="-1">Number of entries in the
 colormap. Setting the colormap size may extend or truncate the
 colormap.
 The maximum number of supported entries is specified by the <i>MaxColormapSize</i>constant,
 and is dependent on the value of QuantumDepth when ImageMagick is
 compiled. An exception is thrown if more entries are requested than may
 be supported. Care should be taken when truncating the colormap to
 ensure that the image colormap indexes reference valid colormap entries.</font><br>
       </td>
     </tr>
     <tr>
       <td>
       <center><a name="colorSpace"></a> <font size="-1">colorSpace</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#ColorspaceType">ColorspaceType</a>
 colorSpace_</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#ColorspaceType">ColorspaceType</a>
 colorSpace_</font></td>
       <td><font size="-1">The colorspace (e.g. CMYK) used to represent
 the image pixel colors. Image pixels are always stored as RGB(A) except
 for the case of CMY(K).</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="columns"></a> <font size="-1">columns</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Image width</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="comment"></a> <font size="-1">comment</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Image comment</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="compose"></a> <font size="-1">compose</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#CompositeOperator">CompositeOperator</a>
       </font></td>
       <td><small><font size="-1"><small>void</small></font></small></td>
       <td><small><font size="-1"><small><a
  href="Enumerations.html#CompositeOperator">CompositeOperator</a>
 compose_</small></font></small></td>
       <td><font size="-1">Composition operator to be used when
 composition is implicitly used (such as for image flattening).</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="compressType"></a> <font size="-1">compress-</font>
       <br>
       <font size="-1">Type</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#CompressionType">CompressionType</a>
       </font></td>
       <td><small><font size="-1"><small>void</small></font></small></td>
       <td><small><font size="-1"><small><a
  href="Enumerations.html#CompressionType">CompressionType</a>
 compressType_</small></font></small></td>
       <td><font size="-1">Image compresion type. The default is the
 compression type of the specified image file.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="debug"></a> <font size="-1">debug</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><small><font size="-1"><small>void</small></font></small></td>
       <td><small><font size="-1"><small>bool flag_</small></font></small></td>
       <td><font size="-1">Enable printing of internal debug messages
 from ImageMagick as it executes.</font></td>
     </tr>
     <tr>
       <td style="text-align: center; vertical-align: middle;"><small><a
  name="defineValue"></a>defineValue<br>
       </small></td>
       <td style="vertical-align: middle; text-align: left;"><small>string<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const std::string
 &amp;magick_, const std::string &amp;key_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const std::string
 &amp;magick_, const std::string &amp;key_, &nbsp;const std::string
 &amp;value_<br>
       </small></td>
       <td style="vertical-align: top;"><small>Set or obtain a
 definition string to applied when encoding or decoding the specified
 format. The meanings of the definitions are format specific. The format
 is designated by the <span style="font-style: italic;">magick_</span>
 argument, the format-specific key is designated by <span
  style="font-style: italic;">key_</span>, and the associated value is
 specified by <span style="font-style: italic;">value_</span>. See the
 defineSet() method if the key must be removed entirely.</small><br>
       </td>
     </tr>
     <tr>
       <td style="text-align: center; vertical-align: middle;"><small><a
  name="defineSet"></a>defineSet<br>
       </small></td>
       <td style="vertical-align: middle; text-align: left;"><small>bool<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const std::string
 &amp;magick_, const std::string &amp;key_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>const std::string
 &amp;magick_, const std::string &amp;key_, bool flag_<br>
       </small></td>
       <td style="vertical-align: middle;"><small>Set or obtain a
 definition flag to applied when encoding or decoding the specified
 format.</small><small>. Similar to the defineValue() method except that
 passing the <span style="font-style: italic;">flag_</span> value
 'true'
 creates a value-less define with that format and key. Passing the <span
  style="font-style: italic;">f</span><span style="font-style: italic;">lag_</span>
 value 'false' removes any existing matching definition. The method
 returns 'true' if a matching key exists, and 'false' if no matching key
 exists.<br>
       </small></td>
     </tr>
     <tr>
       <td>
       <center><a name="density"></a> <font size="-1">density</font></center>
       </td>
       <td><font size="-1"><a href="Geometry.html">Geometry</a> &nbsp;
 (default 72x72)</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;density_</font></td>
       <td><font size="-1">Vertical and horizontal resolution in pixels
 of the image. This option specifies an image density when decoding a
 Postscript or Portable Document page. Often used with <i>psPageSize</i>.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="depth"></a> <font size="-1">depth</font></center>
       </td>
       <td><font size="-1">&nbsp;size_t (8-32)</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t depth_</font></td>
       <td><font size="-1">Image depth. Used to specify the bit depth
 when reading or writing&nbsp; raw images or when the output format
 supports multiple depths. Defaults to the quantum depth that
 ImageMagick is compiled with.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="endian"></a> <font size="-1">endian</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#EndianType">EndianType</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#EndianType">EndianType</a>
 endian_</font></td>
       <td><font size="-1">Specify (or obtain) endian option for formats
 which support it.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="directory"></a> <font size="-1">directory</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Tile names from within an image montage</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="file"></a> <font size="-1">file</font></center>
       </td>
       <td><font size="-1">FILE *</font></td>
       <td><font size="-1">FILE *</font></td>
       <td><font size="-1">FILE *file_</font></td>
       <td><font size="-1">Image file descriptor.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fileName"></a> <font size="-1">fileName</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const string &amp;fileName_</font></td>
       <td><font size="-1">Image file name.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fileSize"></a> <font size="-1">fileSize</font></center>
       </td>
       <td><font size="-1">off_t</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Number of bytes of the image on disk</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fillColor"></a> <font size="-1">fillColor</font></center>
       </td>
       <td><font size="-1">Color</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const Color &amp;fillColor_</font></td>
       <td><font size="-1">Color to use when filling drawn objects</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fillPattern"></a> <font size="-1">fillPattern</font></center>
       </td>
       <td><font size="-1">Image</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const Image &amp;fillPattern_</font></td>
       <td><font size="-1">Pattern image to use when filling drawn
 objects.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fillRule"></a> <font size="-1">fillRule</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#FillRule">FillRule</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const Magick::FillRule &amp;fillRule_</font></td>
       <td><font size="-1">Rule to use when filling drawn objects.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="filterType"></a> <font size="-1">filterType</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#FilterTypes">FilterTypes</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#FilterTypes">FilterTypes</a>
 filterType_</font></td>
       <td><font size="-1">Filter to use when resizing image. The
 reduction filter employed has a sigificant effect on the time required
 to resize an image and the resulting quality. The default filter is <i>Lanczos</i>
 which has been shown to produce high quality results when reducing most
 images.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="font"></a> <font size="-1">font</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const string &amp;font_</font></td>
       <td><font size="-1">Text rendering font. If the font is a fully
 qualified X server font name, the font is obtained from an X&nbsp;
 server. To use a TrueType font, precede the TrueType filename with an
 @. Otherwise, specify&nbsp; a&nbsp; Postscript font name (e.g.
 "helvetica").</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fontPointsize"></a> <font size="-1">fontPointsize</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t pointSize_</font></td>
       <td><font size="-1">Text rendering font point size</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="fontTypeMetrics"></a> <font size="-1">fontTypeMetrics</font></center>
       </td>
       <td><font size="-1"><a href="TypeMetric.html">TypeMetric</a> </font></td>
       <td><font size="-1">const std::string &amp;text_, <a
  href="TypeMetric.html"> TypeMetric</a> *metrics</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Update metrics with font type metrics using
 specified <i>text</i>, and current <a href="#font">font</a> and <a
  href="#fontPointsize">fontPointSize</a> settings.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="format"></a> <font size="-1">format</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Long form image format description.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="gamma"></a> <font size="-1">gamma</font></center>
       </td>
       <td><font size="-1">double (typical range 0.8 to 2.3)</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Gamma level of the image. The same color
 image displayed on two different&nbsp; workstations&nbsp; may&nbsp;
 look&nbsp; different due to differences in the display monitor.&nbsp;
 Use gamma correction&nbsp; to&nbsp; adjust&nbsp; for this&nbsp;
 color&nbsp; difference.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="geometry"></a> <font size="-1">geometry</font></center>
       </td>
       <td><font size="-1"><a href="Geometry.html">Geometry</a> </font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Preferred size of the image when encoding.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="gifDisposeMethod"></a> <font size="-1">gifDispose-</font>
       <br>
       <font size="-1">Method</font></center>
       </td>
       <td><font size="-1">size_t</font> <br>
       <font size="-1">{ 0 = Disposal not specified,</font> <br>
       <font size="-1">1 = Do not dispose of graphic,</font> <br>
       <font size="-1">3 = Overwrite graphic with background color,</font>
       <br>
       <font size="-1">4 = Overwrite graphic with previous graphic. }</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t disposeMethod_</font></td>
       <td><font size="-1">GIF disposal method. This option is used to
 control how successive frames are rendered (how the preceding frame is
 disposed of) when creating a GIF animation.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="iccColorProfile"></a> <font size="-1">iccColorProfile</font></center>
       </td>
       <td><font size="-1"><a href="Blob.html">Blob</a> </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a href="Blob.html">Blob</a>
 &amp;colorProfile_</font></td>
       <td><font size="-1">ICC color profile. Supplied via a <a
  href="Blob.html"> Blob</a> since Magick++/ and ImageMagick do not
 currently support formating this data structure directly.&nbsp;
 Specifications are available from the <a href="http://www.color.org/">
 International Color Consortium</a> for the format of ICC color profiles.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="interlaceType"></a> <font size="-1">interlace-</font>
       <br>
       <font size="-1">Type</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#InterlaceType">InterlaceType</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#InterlaceType">InterlaceType</a>
 interlace_</font></td>
       <td><font size="-1">The type of interlacing scheme (default <i>NoInterlace</i>
 ). This option is used to specify the type of&nbsp; interlacing
 scheme&nbsp; for&nbsp; raw&nbsp; image formats such as RGB or YUV. <i>NoInterlace</i>
 means do not&nbsp; interlace, <i>LineInterlace</i> uses scanline
 interlacing, and <i>PlaneInterlace</i> uses plane interlacing. <i>
 PartitionInterlace</i> is like <i>PlaneInterlace</i> except the&nbsp;
 different planes&nbsp; are saved&nbsp; to individual files (e.g.&nbsp;
 image.R, image.G, and image.B). Use <i>LineInterlace</i> or <i>
 PlaneInterlace</i> to create an interlaced GIF or progressive JPEG
 image.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="iptcProfile"></a> <font size="-1">iptcProfile</font></center>
       </td>
       <td><font size="-1"><a href="Blob.html">Blob</a> </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a href="Blob.html">Blob</a> &amp;
 iptcProfile_</font></td>
       <td><font size="-1">IPTC profile. Supplied via a <a
  href="Blob.html"> Blob</a> since Magick++ and ImageMagick do not
 currently&nbsp; support formating this data structure directly.
 Specifications are available from the <a href="http://www.iptc.org/">
 International Press Telecommunications Council</a> for IPTC profiles.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="label"></a> <font size="-1">label</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const string &amp;label_</font></td>
       <td><font size="-1">Image label</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="magick"></a> <font size="-1">magick</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">&nbsp;const string &amp;magick_</font></td>
       <td><font size="-1">Get image format (e.g. "GIF")</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="matte"></a> <font size="-1">matte</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">bool matteFlag_</font></td>
       <td><font size="-1">True if the image has transparency. If set
 True, store matte channel if&nbsp; the image has one otherwise create
 an opaque one.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="matteColor"></a> <font size="-1">matteColor</font></center>
       </td>
       <td><font size="-1"><a href="Color.html">Color</a> </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a href="Color.html">Color</a>
 &amp;matteColor_</font></td>
       <td><font size="-1">Image matte (frame) color</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="meanErrorPerPixel"></a> <font size="-1">meanError-</font>
       <br>
       <font size="-1">PerPixel</font></center>
       </td>
       <td><font size="-1">double</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">The mean error per pixel computed when an
 image is color reduced. This parameter is only valid if verbose is set
 to true and the image has just been quantized.</font></td>
     </tr>
     <tr>
       <td style="text-align: center; vertical-align: middle;"><font
  size="-1"><a name="modulusDepth"></a>modulusDepth<br>
       </font></td>
       <td style="text-align: left; vertical-align: middle;"><small>unsigned
 int<br>
       </small></td>
       <td style="text-align: left; vertical-align: middle;"><small><font
  size="-1"><small>void<br>
       </small></font></small></td>
       <td style="text-align: left; vertical-align: middle;"><small>unsigned
 int depth_<br>
       </small></td>
       <td style="text-align: left; vertical-align: middle;"><small>Image
 modulus depth (minimum number of bits required to support
 red/green/blue components without loss of accuracy). The pixel modulus
 depth may be decreased by supplying a value which is less than the
 current value, updating the pixels (reducing accuracy) to the new
 depth.
 The pixel modulus depth can not be increased over the current value
 using this method.<br>
       </small></td>
     </tr>
     <tr>
       <td>
       <center><a name="monochrome"></a> <font size="-1">monochrome</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">bool flag_</font></td>
       <td><font size="-1">Transform the image to black and white</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="montageGeometry"></a> <font size="-1">montage-</font>
       <br>
       <font size="-1">Geometry</font></center>
       </td>
       <td><font size="-1"><a href="Geometry.html">Geometry</a> </font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Tile size and offset within an image montage.
 Only valid for montage images.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="normalizedMaxError"></a> <font size="-1">normalized-</font>
       <br>
       <font size="-1">MaxError</font></center>
       </td>
       <td><font size="-1">double</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">The normalized max error per pixel computed
 when an image is color reduced. This parameter is only valid if verbose
 is set to true and the image has just been quantized.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="normalizedMeanError"></a> <font size="-1">normalized-</font>
       <br>
       <font size="-1">MeanError</font></center>
       </td>
       <td><font size="-1">double</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">The normalized mean error per pixel computed
 when an image is color reduced. This parameter is only valid if verbose
 is set to true and the image has just been quantized.</font></td>
     </tr>
     <tr>
       <td style="text-align: center; vertical-align: middle;"><small><a
  name="orientation"></a>orientation<br>
       </small></td>
       <td style="vertical-align: middle;"><small><a
  href="Enumerations.html#OrientationType">OrientationType</a></small></td>
       <td style="vertical-align: top;"><small>void</small><br>
       </td>
       <td style="vertical-align: middle;"><small><a
  href="Enumerations.html#OrientationType">OrientationType</a>
 orientation_</small></td>
       <td style="vertical-align: top;"><small>Image orientation.
 &nbsp;Supported by some file formats such as DPX and TIFF. Useful for
 turning the right way up.<br>
       </small></td>
     </tr>
     <tr>
       <td>
       <center><a name="packets"></a> <font size="-1">packets</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">The number of runlength-encoded packets in</font>
       <br>
       <font size="-1">the image</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="packetSize"></a> <font size="-1">packetSize</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">The number of bytes in each pixel packet</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="page"></a> <font size="-1">page</font></center>
       </td>
       <td><font size="-1"><a href="Geometry.html#PostscriptPageSize">Geometry</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a
  href="Geometry.html#PostscriptPageSize"> Geometry</a> &amp;pageSize_</font></td>
       <td><font size="-1">Preferred size and location of an image
 canvas.</font>
       <p><font size="-1">Use this option to specify the dimensions
 and position of the Postscript page in dots per inch or a TEXT page in
 pixels. This option is typically used in concert with <i><a
  href="#density"> density</a> </i>.</font> </p>
       <p><font size="-1">Page may also be used to position a GIF
 image (such as for a scene in an animation)</font></p>
       </td>
     </tr>
     <tr>
       <td>
       <center><a name="pixelColor"></a> <font size="-1">pixelColor</font></center>
       </td>
       <td><font size="-1"><a href="Color.html">Color</a> </font></td>
       <td><font size="-1">size_t x_, size_t y_</font></td>
       <td><font size="-1">size_t x_, size_t y_, const <a
  href="Color.html"> Color</a> &amp;color_</font></td>
       <td><font size="-1">Get/set pixel color at location x &amp; y.</font></td>
     </tr>
     <tr>
       <td valign="top">
       <div align="center"><a name="profile"></a> <small>profile</small><br>
       </div>
       </td>
       <td valign="top"><a href="Blob.html"><small> Blob</small><small><br>
       </small></a> </td>
       <td valign="top"><small>const std::string name_</small><small><br>
       </small></td>
       <td valign="top"><small>const std::string name_, const Blob
 &amp;colorProfile_</small><small><br>
       </small></td>
       <td valign="top"><small>Get/set/remove </small><small> a named
 profile</small><small>. Valid names include </small><small>"*",
 "8BIM", "ICM", "IPTC", or a user/format-defined profile name. </small><br>
       </td>
     </tr>
     <tr>
       <td>
       <center><a name="quality"></a> <font size="-1">quality</font></center>
       </td>
       <td><font size="-1">size_t (0 to 100)</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t quality_</font></td>
       <td><font size="-1">JPEG/MIFF/PNG compression level (default 75).</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="quantizeColors"></a> <font size="-1">quantize-</font>
       <br>
       <font size="-1">Colors</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t colors_</font></td>
       <td><font size="-1">Preferred number of colors in the image. The
 actual number of colors in the image may be less than your request, but
 never more. Images with less unique colors than specified with this
 option will have any duplicate or unused colors removed.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="quantizeColorSpace"></a> <font size="-1">quantize-</font>
       <br>
       <font size="-1">ColorSpace</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#ColorspaceType">ColorspaceType</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#ColorspaceType">ColorspaceType</a>
 colorSpace_</font></td>
       <td><font size="-1">Colorspace to quantize colors in (default
 RGB). Empirical evidence suggests that distances in color spaces such
 as YUV or YIQ correspond to perceptual color differences more closely
 than do distances in RGB space. These color spaces may give better
 results when color reducing an image.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="quantizeDither"></a> <font size="-1">quantize-</font>
       <br>
       <font size="-1">Dither</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">bool flag_</font></td>
       <td><font size="-1">Apply Floyd/Steinberg error diffusion to the
 image. The basic strategy of dithering is to&nbsp; trade&nbsp;
 intensity
 resolution&nbsp; for&nbsp; spatial&nbsp; resolution&nbsp; by&nbsp;
 averaging the intensities&nbsp; of&nbsp; several&nbsp;
 neighboring&nbsp; pixels. Images which&nbsp; suffer&nbsp; from&nbsp;
 severe&nbsp; contouring&nbsp; when&nbsp; reducing colors can be
 improved with this option. The quantizeColors or monochrome option must
 be set for this option to take effect.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="quantizeTreeDepth"></a> <font size="-1">quantize-</font>
       <br>
       <font size="-1">TreeDepth</font></center>
       </td>
       <td><font size="-1">size_t&nbsp;</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t treeDepth_</font></td>
       <td><font size="-1">Depth of the quantization color
 classification tree. Values of 0 or 1 allow selection of the optimal
 tree depth for the color reduction algorithm. Values between 2 and 8
 may be used to manually adjust the tree depth.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="renderingIntent"></a> <font size="-1">rendering-</font>
       <br>
       <font size="-1">Intent</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#RenderingIntent">RenderingIntent</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#RenderingIntent">RenderingIntent</a>
 render_</font></td>
       <td><font size="-1">The type of rendering intent</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="resolutionUnits"></a> <font size="-1">resolution-</font>
       <br>
       <font size="-1">Units</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#ResolutionType">ResolutionType</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#ResolutionType">ResolutionType</a>
 units_</font></td>
       <td><font size="-1">Units of image resolution</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="rows"></a> <font size="-1">rows</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">The number of pixel rows in the image</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="scene"></a> <font size="-1">scene</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t scene_</font></td>
       <td><font size="-1">Image scene number</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="signature"></a> <font size="-1">signature</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">bool force_ = false</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Image MD5 signature. Set force_ to 'true' to
 force re-computation of signature.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="size"></a> <font size="-1">size</font></center>
       </td>
       <td><font size="-1"><a href="Geometry.html">Geometry</a> </font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const <a href="Geometry.html">Geometry</a>
 &amp;geometry_</font></td>
       <td><font size="-1">Width and height of a raw image (an image
 which does not support width and height information).&nbsp; Size may
 also be used to affect the image size read from a multi-resolution
 format (e.g. Photo CD, JBIG, or JPEG.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeAntiAlias"></a> <font size="-1">strokeAntiAlias</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">bool flag_</font></td>
       <td><font size="-1">Enable or disable anti-aliasing when drawing
 object outlines.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeColor"></a> <font size="-1">strokeColor</font></center>
       </td>
       <td><font size="-1">Color</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const Color &amp;strokeColor_</font></td>
       <td><font size="-1">Color to use when drawing object outlines</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeDashOffset"></a> <font size="-1">strokeDashOffset</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">double strokeDashOffset_</font></td>
       <td><font size="-1">While drawing using a dash pattern, specify
 distance into the dash pattern to start the dash (default 0).</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeDashArray"></a> <font size="-1">strokeDashArray</font></center>
       </td>
       <td><font size="-1">const double*</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const double* strokeDashArray_</font></td>
       <td><font size="-1">Specify the pattern of dashes and gaps used
 to stroke paths. The strokeDashArray represents a zero-terminated
 array of numbers that specify the lengths (in pixels) of alternating
 dashes and gaps in user units. If an odd number of values is provided,
 then the list of values is repeated to yield an even number of
 values.&nbsp; A typical strokeDashArray_ array might contain the
 members 5 3 2 0, where the zero value indicates the end of the pattern
 array.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeLineCap"></a> <font size="-1">strokeLineCap</font></center>
       </td>
       <td><font size="-1">LineCap</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">LineCap lineCap_</font></td>
       <td><font size="-1">Specify the shape to be used at the corners
 of paths (or other vector shapes) when they are stroked. Values of
 LineJoin are UndefinedJoin, MiterJoin, RoundJoin, and BevelJoin.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeLineJoin"></a> <font size="-1">strokeLineJoin</font></center>
       </td>
       <td><font size="-1">LineJoin</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">LineJoin lineJoin_</font></td>
       <td><font size="-1">Specify the shape to be used at the corners
 of paths (or other vector shapes) when they are stroked. Values of
 LineJoin are UndefinedJoin, MiterJoin, RoundJoin, and BevelJoin.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeMiterLimit"></a> <font size="-1">strokeMiterLimit</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t miterLimit_</font></td>
       <td><font size="-1">Specify miter limit. When two line segments
 meet at a sharp angle and miter joins have been specified for
 'lineJoin', it is possible for the miter to extend far beyond the
 thickness of the line stroking the path. The miterLimit' imposes a
 limit on the ratio of the miter length to the 'lineWidth'. The default
 value of this parameter is 4.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokeWidth"></a> <font size="-1">strokeWidth</font></center>
       </td>
       <td><font size="-1">double</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">double strokeWidth_</font></td>
       <td><font size="-1">Stroke width for use when drawing vector
 objects (default one)</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="strokePattern"></a> <font size="-1">strokePattern</font></center>
       </td>
       <td><font size="-1">Image</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const Image &amp;strokePattern_</font></td>
       <td><font size="-1">Pattern image to use while drawing object
 stroke (outlines).</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="subImage"></a> <font size="-1">subImage</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t subImage_</font></td>
       <td><font size="-1">Subimage of an image sequence</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="subRange"></a> <font size="-1">subRange</font></center>
       </td>
       <td><font size="-1">size_t</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">size_t subRange_</font></td>
       <td><font size="-1">Number of images relative to the base image</font></td>
     </tr>
     <tr>
       <td valign="middle">
       <div align="center"><a name="textEncoding"></a> <small>textEncoding</small><br>
       </div>
       </td>
       <td valign="middle"><small>string</small><small><br>
       </small></td>
       <td valign="middle"><small>void</small><small><br>
       </small></td>
       <td valign="middle"><small>const std::string &amp;encoding_</small><small><br>
       </small></td>
       <td valign="top"><small>Specify the code set to use for text
 annotations. The only character encoding which may be specified at
 this time is "UTF-8" for representing </small><small><a
  href="http://www.unicode.org/"> Unicode </a> </small><small>as a
 sequence of bytes. Specify an empty string to use the default ASCII
 encoding. Successful text annotation using Unicode may require fonts
 designed to support Unicode.</small><br>
       </td>
     </tr>
     <tr>
       <td>
       <center><a name="tileName"></a> <font size="-1">tileName</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const string &amp;tileName_</font></td>
       <td><font size="-1">Tile name</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="totalColors"></a> <font size="-1">totalColors</font></center>
       </td>
       <td><font size="-1">unsigned long</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">Number of colors in the image</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="type"></a> <font size="-1">type</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#ImageType">ImageType</a>
       </font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#ffffff"><font size="-1"><a
  href="Enumerations.html#ImageType"> ImageType</a> </font></td>
       <td><font size="-1">Image type.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="verbose"></a> <font size="-1">verbose</font></center>
       </td>
       <td><font size="-1">bool</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">bool verboseFlag_</font></td>
       <td><font size="-1">Print detailed information about the image</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="view"></a> <font size="-1">view</font></center>
       </td>
       <td><font size="-1">string</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const string &amp;view_</font></td>
       <td><font size="-1">FlashPix viewing parameters.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="virtualPixelMethod"></a> <font size="-1">virtualPixelMethod</font></center>
       </td>
       <td><font size="-1"><a href="Enumerations.html#VirtualPixelMethod">VirtualPixelMethod</a>
       </font></td>
       <td><small><font size="-1"><small>void</small></font></small></td>
       <td><small><font size="-1"><small><a
  href="Enumerations.html#VirtualPixelMethod">VirtualPixelMethod</a>
 virtualPixelMethod_</small></font></small></td>
       <td><font size="-1">Image virtual pixel method.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="x11Display"></a> <font size="-1">x11Display</font></center>
       </td>
       <td><font size="-1">string (e.g. "hostname:0.0")</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">const string &amp;display_</font></td>
       <td><font size="-1">X11 display to display to, obtain fonts from,
 or to capture image from</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="xResolution"></a> <font size="-1">xResolution</font></center>
       </td>
       <td><font size="-1">double</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">x resolution of the image</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="yResolution"></a> <font size="-1">yResolution</font></center>
       </td>
       <td><font size="-1">double</font></td>
       <td><font size="-1">void</font></td>
       <td bgcolor="#666666"><font size="-1">&nbsp;</font></td>
       <td><font size="-1">y resolution of the image</font></td>
     </tr>
   </tbody>
 </table>
 <center>
 <h3> <a name="Raw Image Pixel Access"></a> Low-Level Image Pixel Access</h3>
 </center>
 Image pixels (of type <i><a href="PixelPacket.html">PixelPacket</a> </i>)
 may be accessed directly via the <i>Image Pixel Cache</i> .&nbsp; The
 image pixel cache is a rectangular window into the actual image pixels
 (which may be in memory, memory-mapped from a disk file, or entirely on
 disk). Two interfaces exist to access the <i>Image Pixel Cache.</i>
 The
 interface described here (part of the <i>Image</i> class) supports
 only
 one view at a time. See the <i><a href="Pixels.html">Pixels</a> </i>
 class for a more abstract interface which supports simultaneous pixel
 views (up to the number of rows). As an analogy, the interface
 described
 here relates to the <i><a href="Pixels.html">Pixels</a> </i> class as
 stdio's gets() relates to fgets(). The <i><a href="Pixels.html"> Pixels</a>
 </i>class provides the more general form of the interface.
 <p>Obtain existing image pixels via <i>getPixels()</i>. Create a new
 pixel region using <i>setPixels().</i></p>
 <p>In order to ensure that only the current generation of the image is
 modified, the Image's <a href="#modifyImage">modifyImage()</a> method
 should be invoked to reduce the reference count on the underlying image
 to one. If this is not done, then it is possible for a previous
 generation of the image to be modified due to the use of reference
 counting when copying or constructing an Image.<br>
 </p>
 <p>Depending on the capabilities of the operating system, and the
 relationship of the window to the image, the pixel cache may be a copy
 of the pixels in the selected window, or it may be the actual image
 pixels. In any case calling <i>syncPixels()</i> insures that the base
 image is updated with the contents of the modified pixel cache. The
 method <i> readPixels()</i> supports copying foreign pixel data
 formats
 into the pixel cache according to the <i>QuantumTypes</i>. The method <i>writePixels()</i>
 supports copying the pixels in the cache to a foreign pixel
 representation according to the format specified by <i>QuantumTypes</i>.</p>
 <p>The pixel region is effectively a small image in which the pixels
 may be accessed, addressed, and updated, as shown in the following
 example:
 <table border="0" width="100%">
   <tbody>
     <tr>
       <td><font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> Image image("cow.png");</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#ff0000"><font
  size="-1"> // Ensure that there are no other references to this image.</font></font></font><br>
       <font size="-1"><span
  style="color: rgb(0, 0, 153); font-family: courier new,courier,monospace;">image.modifyImage();<br>
       </span></font><font face="Courier New,Courier"><font
  color="#ff0000"><font size="-1"> // Set the image type to TrueColor
 DirectClass representation.</font></font></font><br>
       <font size="-1"><span
  style="color: rgb(0, 0, 153); font-family: courier new,courier,monospace;">image.type(TrueColorType</span></font><font
  size="-1"><span
  style="color: rgb(0, 0, 153); font-family: courier new,courier,monospace;">);</span></font><br>
       <font face="Courier New,Courier"><font color="#ff0000"><font
  size="-1"> // Request pixel region with size 60x40, and top origin at
 20x30</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> ssize_t columns = 60;</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> PixelPacket *pixel_cache =
 image.getPixels(20,30,columns,40);</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#ff0000"><font
  size="-1"> // Set pixel at column 5, and row 10 in the pixel cache to
 red.</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> ssize_t column = 5;</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> ssize_t row = 10;</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> PixelPacket *pixel =
 pixel_cache+row*columns*sizeof(PixelPacket)+column;</font></font></font>
       <br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> *pixel = Color("red");</font></font></font> <br>
       <font face="Courier New,Courier"><font color="#ff0000"><font
  size="-1"> // Save changes to underlying image</font></font></font> .<br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> image.syncPixels();<br>
       </font></font></font>&nbsp;<font face="Courier New,Courier"><font
  color="#ff0000"><font size="-1"> // Save updated image to file.</font></font></font><br>
       <font face="Courier New,Courier"><font color="#000099"><font
  size="-1"> image.write("horse.png");</font></font></font></td>
       <td><img src="Cache.png" height="218" width="254"> </td>
     </tr>
   </tbody>
 </table>
 </p>
 <p>The image cache supports the following methods: <br>
 &nbsp;
 <table border="1" width="100%">
   <caption>Image Cache Methods</caption> <tbody>
     <tr>
       <td>
       <center><b>Method</b></center>
       </td>
       <td>
       <center><b>Returns</b></center>
       </td>
       <td>
       <center><b>Signature</b></center>
       </td>
       <td>
       <center><b>Description</b></center>
       </td>
     </tr>
     <tr>
       <td>
       <center><a name="getConstPixels"></a> <font size="-1">getConstPixels</font></center>
       </td>
       <td><font size="-1">const <a href="PixelPacket.html">PixelPacket</a>
 *</font></td>
       <td><font size="-1">const ssize_t x_, const ssize_t y_, const unsigned
 int columns_, const size_t rows_</font></td>
       <td><font size="-1">Transfers pixels from the image to the pixel
 cache as defined by the specified rectangular region.&nbsp;</font><font
  size="-1">The returned pointer remains valid until the next getPixel,
 getConstPixels, or setPixels call and should never be deallocated by
 the
 user.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="getConstIndexes"></a> <font size="-1">getConstIndexes</font></center>
       </td>
       <td><font size="-1">const IndexPacket*</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Returns a pointer to the Image pixel indexes
 corresponding to a previous </font><font size="-1">getPixel,
 getConstPixels, or setPixels call. &nbsp;</font><font size="-1">The
 returned pointer remains valid until the next getPixel, getConstPixels,
 or setPixels call and should never be deallocated by the user.</font><font
  size="-1"> Only valid for PseudoClass images or CMYKA images. The
 pixel indexes represent an array of type IndexPacket, with each entry
 corresponding to an x,y pixel position. For PseudoClass images, the
 entry's value is the offset into the colormap (see <a href="#colorMap">colorMap</a>
 ) for that pixel. For CMYKA images, the indexes are used to contain the
 alpha channel.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="getIndexes"></a> <font size="-1">getIndexes</font></center>
       </td>
       <td><font size="-1">IndexPacket*</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Returns a pointer to the Image pixel indexes
 corresponding to the pixel region requested by the last <a
  href="#getConstPixels">getConstPixels</a> , <a href="#getPixels">getPixels</a>
 , or <a href="#setPixels">setPixels</a> call.&nbsp;</font><font
  size="-1">The
 returned pointer remains valid until the next getPixel, getConstPixels,
 or setPixels call and should never be deallocated by the user.</font><font
  size="-1"> </font><font size="-1">Only valid for PseudoClass images
 or
 CMYKA images. The pixel indexes represent an array of type
 IndexPacket, with each entry corresponding to a pixel x,y position. For
 PseudoClass images, the entry's value is the offset into the colormap
 (see <a href="#colorMap">colorMap</a> )&nbsp; for that pixel. For
 CMYKA
 images, the indexes are used to contain the alpha channel.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="getPixels"></a> <font size="-1">getPixels</font></center>
       </td>
       <td><font size="-1"><a href="PixelPacket.html">PixelPacket</a> *</font></td>
       <td><font size="-1">const ssize_t x_, const ssize_t y_, const unsigned
 int columns_, const size_t rows_</font></td>
       <td><font size="-1">Transfers pixels from the image to the pixel
 cache as defined by the specified rectangular region. Modified pixels
 may be subsequently transferred back to the image via syncPixels. </font><font
  size="-1">The returned pointer remains valid until the next getPixel,
 getConstPixels, or setPixels call and should never be deallocated by
 the
 user.</font><font size="-1"></font></td>
     </tr>
     <tr>
       <td>
       <center><a name="setPixels"></a> <font size="-1">setPixels</font></center>
       </td>
       <td><font size="-1"><a href="PixelPacket.html">PixelPacket</a> *</font></td>
       <td><font size="-1">const ssize_t x_, const ssize_t y_, const unsigned
 int columns_, const size_t rows_</font></td>
       <td><font size="-1">Allocates a pixel cache region to store image
 pixels as defined by the region rectangle.&nbsp; This area is
 subsequently transferred from the pixel cache to the image via
 syncPixels.&nbsp;</font><font size="-1">The returned pointer remains
 valid until the next getPixel, getConstPixels, or setPixels call and
 should never be deallocated by the user.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="syncPixels"></a> <font size="-1">syncPixels</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">void</font></td>
       <td><font size="-1">Transfers the image cache pixels to the image.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="readPixels"></a> <font size="-1">readPixels</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#QuantumTypes">QuantumTypes</a>
 quantum_, unsigned char *source_,</font></td>
       <td><font size="-1">Transfers one or more pixel components from a
 buffer or file into the image pixel cache of an image. ReadPixels is
 typically used to support image decoders. The region transferred
 corresponds to the region set by a preceding setPixels call.</font></td>
     </tr>
     <tr>
       <td>
       <center><a name="writePixels"></a> <font size="-1">writePixels</font></center>
       </td>
       <td><font size="-1">void</font></td>
       <td><font size="-1"><a href="Enumerations.html#QuantumTypes">QuantumTypes</a>
 quantum_, unsigned char *destination_</font></td>
       <td><font size="-1">Transfers one or more pixel components from
 the image pixel cache to a buffer or file. WritePixels is typically
 used to support image encoders. The region transferred corresponds to
 the region set by a preceding getPixels or getConstPixels call.</font></td>
     </tr>
   </tbody>
 </table>
 <br>
 &nbsp; </p>
 </body>
 </html>