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<h1>ImageMagick Composite Command-line Tool</h1>
<p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
<p>Use the <kbd>composite</kbd> program to overlap one image over another. See <a href="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>composite</kbd> command or see below for example usages of the command.</p>
<div style="margin: auto;">
<h2><a id="usage"></a>Example Usage</h2>
</div>
<p>We list a few examples of the <kbd>composite</kbd> command here to illustrate its usefulness and ease of use. To get started, lets overlay a smiley face over a rose:</p>
<p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>composite -gravity center smile.gif rose: rose-over.png</span></p>
<div class="image">
<p>
<a href="../images/smile.gif"><img src="../images/smile.gif" width="48" height="48" alt="smile" /></a>
<img src="../images/over.gif" width="56" height="46" alt="over" />
<a href="../images/rose.jpg"><img src="../images/rose.jpg" width="70" height="46" alt="rose" /></a>
<img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
<a href="../images/rose-over.png"><img src="../images/rose-over.png" width="70" height="46" alt="rose" /></a>
</p>
</div>
<p>You can create three-dimensional effect with the <em>Atop</em>:</p>
<p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert -size 70x70 canvas:none -fill red -draw 'circle 35,35 10,30' red-circle.png</span><span class='crtout'></span><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert -size 70x70 canvas:none -draw 'circle 35,35 35,20' -negate \ <br/>
-channel A -gaussian-blur 0x8 white-highlight.png</span><span class='crtout'></span><span class="crtprompt"> $magick&gt; </span><span class='crtin'>composite -compose atop -geometry -13-17 white-highlight.png red-circle.png red-ball.png</span></p>
<div class="image">
<p>
<a href="../images/white-highlight.png"><img src="../images/white-highlight.png" width="70" height="70" alt="white highlight" /></a>
<img src="../images/atop.gif" width="56" height="70" alt="atop" />
<a href="../images/red-circle.png"><img src="../images/red-circle.png" width="70" height="70" alt="red circle" /></a>
<img style="margin-top:25px; margin-bottom:25px;" src="../images/right.gif" width="20" height="20" alt="==>" />
<a href="../images/red-ball.png"><img src="../images/red-ball.png" width="70" height="70" alt="red ball" /></a>
</p>
</div>
<p>You can find additional examples of using <kbd>composite</kbd> in <a href="http://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>. You can find out more about them and the mathematics by looking at <a href="http://www.w3.org/TR/SVG12/rendering.html">SVG Alpha Compositing</a></p>
<div style="margin: auto;">
<h2><a id="options"></a>Option Summary</h2>
</div>
<p>The <kbd>composite</kbd> command recognizes these options. Click on an option to get more details about how that option works.</p>
<table class="doc">
<tbody>
<tr>
<th align="left">Option</th>
<th align="left">Description</th>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td>
<td valign="top">affine transform matrix</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
<td valign="top">on, activate, off, deactivate, set, opaque, copy",
transparent, extract, background, or shape the alpha channel</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
<td valign="top">decrypt image with this password</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#blend">-blend <em class="option">geometry</em></a></td>
<td valign="top">blend images</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td>
<td valign="top">chromaticity blue primary point</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
<td valign="top">surround image with a border of color</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
<td valign="top">border color</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
<td valign="top">apply option to select image channels</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
<td valign="top">preferred number of colors in the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
<td valign="top">set image colorspace</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
<td valign="top">annotate image with comment</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td>
<td valign="top">set image composite operator</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
<td valign="top">image compression type</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
<td valign="top">display copious debugging information</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
<td valign="top">convert cipher pixels to plain</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
<td valign="top">define one or more image format options</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
<td valign="top">horizontal and vertical density of the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
<td valign="top">image depth</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#displace">-displace <em class="option">geometry</em></a></td>
<td valign="top">shift image pixels defined by a displacement map</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#dissolve">-dissolve <em class="option">value</em></a></td>
<td valign="top">dissolve the two images a given percent</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#dither">-dither <em class="option">method</em></a></td>
<td valign="top">apply error diffusion to image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td>
<td valign="top">convert plain pixels to cipher pixels</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td>
<td valign="top">text encoding type</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
<td valign="top">endianness (MSB or LSB) of the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
<td valign="top">extract area from image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
<td valign="top">use this filter when resizing an image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#font">-font <em class="option">name</em></a></td>
<td valign="top">render text with this font</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
<td valign="top">preferred size or location of the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td>
<td valign="top">horizontal and vertical text placement</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td>
<td valign="top">chromaticity green primary point</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
<td valign="top">print program options</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
<td valign="top">identify the format and characteristics of the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
<td valign="top">type of image interlacing scheme</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
<td valign="top">pixel color interpolation method</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">string</em></a></td>
<td valign="top">assign a label to an image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#level">-level <em class="option">value</em></a></td>
<td valign="top">adjust the level of image contrast</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
<td valign="top">pixel cache resource limit</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
<td valign="top">format of debugging information</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
<td valign="top">monitor progress</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
<td valign="top">transform image to black and white</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
<td valign="top">replace each pixel with its complementary color </td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
<td valign="top">size and location of an image canvas (setting)</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td>
<td valign="top">font point size</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
<td valign="top">add, delete, or apply an image profile</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#quality">-quality <em class="option">value</em></a></td>
<td valign="top">JPEG/MIFF/PNG compression level</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
<td valign="top">reduce image colors in this colorspace</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
<td valign="top">suppress all warning messages</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td>
<td valign="top">chromaticity red primary point</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
<td valign="top">pay attention to warning messages.</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
<td valign="top">settings remain in effect until parenthesis boundary.</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
<td valign="top">apply Paeth rotation to the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
<td valign="top">horizontal and vertical sampling factor</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
<td valign="top">image scene number</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
<td valign="top">seed a new sequence of pseudo-random numbers</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
<td valign="top">set an image attribute</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
<td valign="top">sharpen the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td>
<td valign="top">shave pixels from the image edges</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
<td valign="top">width and height of image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#stegano">-stegano <em>offset</em></a></td>
<td valign="top">hide watermark within an image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#stereo">-stereo <em class="option">geometry</em></a></td>
<td valign="top">combine two image to create a stereo anaglyph</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
<td valign="top">strip image of all profiles and comments</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td>
<td valign="top">swap two images in the image sequence</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#synchronize">-synchronize</a></td>
<td valign="top">synchronize image to storage device</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#taint">-taint</a></td>
<td valign="top">mark the image as modified</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
<td valign="top">create a thumbnail of the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#tile">-tile</a></td>
<td valign="top">repeat composite operation across and down image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#transform">-transform</a></td>
<td valign="top">affine transform image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
<td valign="top">transparent color</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td>
<td valign="top">color tree depth</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#type">-type <em class="option">type</em></a></td>
<td valign="top">image type</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#units">-units <em class="option">type</em></a></td>
<td valign="top">the units of image resolution</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td>
<td valign="top">sharpen the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
<td valign="top">print detailed information about the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
<td valign="top">print version information</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
<td valign="top">access method for pixels outside the boundaries of the image</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#watermark">-watermark <em class="option">geometry</em></a></td>
<td valign="top">percent brightness and saturation of a watermark</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td>
<td valign="top">chromaticity white point</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td>
<td valign="top">force all pixels above the threshold into white</td>
</tr>
<tr>
<td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
<td valign="top">write images to this file</td>
</tr>
</tbody>
</table>
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