diff --git a/www/porting.html b/www/porting.html
index 6e1e217..9b25ef9 100644
--- a/www/porting.html
+++ b/www/porting.html
@@ -8,13 +8,13 @@
http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd">
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<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
- <meta name="google-site-verification" content="MxsMq6bdLOx0KSuz1MY6yG9ZTIJ7_7DVRfl5NCAT5Yg"/>
+ <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4"/>
<title>ImageMagick: Porting to ImageMagick Version 7</title>
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<meta name="application-name" content="ImageMagick"/>
- <meta name="description" content="Use ImageMagick to convert, edit, or compose bitmap images in a variety of formats. In addition resize, rotate, shear, distort and transform images automagically."/>
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<meta name="keywords" content="porting, to, imagemagick, version, 7, ImageMagick, PerlMagick, image processing, OpenMP, software development library, image, photo, software, Magick++, MagickWand"/>
@@ -24,42 +24,55 @@
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+ <meta name="copyright" content="Copyright (c) 1999-2012 ImageMagick Studio LLC"/>
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<div class="main">
<h1>ImageMagick Version 7 Porting Guide</h1>
-<p class="navigation-index">[<a href="porting.html#imv7">ImageMagick Version 7</a> • <a href="porting.html#channels">Pixel Channels</a> • <a href="porting.html#alpha">Alpha</a> • <a href="porting.html#grayscale">Grayscale</a> • <a href="porting.html#core">MagickCore API</a> • <a href="porting.html#headers">Header Files</a> • <a href="porting.html#depecate">Deprecated Features Removed</a> • <a href="porting.html#cli">Command-line Interface</a> • <a href="porting.html#summary">Version 7 Change Summary</a> ]</p>
+<p class="navigation-index">[<a href="porting.html#imv7">ImageMagick Version 7</a> • <a href="porting.html#hdri">High Dynamic Range Imaging</a> • <a href="porting.html#channels">Pixel Channels</a> • <a href="porting.html#alpha">Alpha</a> • <a href="porting.html#grayscale">Grayscale</a> • <a href="porting.html#mask">Masks</a> • <a href="porting.html#core">MagickCore API</a> • <a href="porting.html#headers">Header Files</a> • <a href="porting.html#deprecate">Deprecated Features Removed</a> • <a href="porting.html#cli">Command-line Interface</a> • <a href="porting.html#summary">Version 7 Change Summary</a> ]</p>
<h2><a id="imv7"></a>ImageMagick Version 7</h2>
<div class="doc-section">
@@ -255,15 +241,19 @@
distributed processing.</p>
<p>With shell API overhaul other improvements are being made, including:
-better reporting of which option failed, the consolidation and depreciation of
+better reporting of which option failed, the consolidation and deprecation of
options, and more global use of 'image properities' (more commonly known as
'percent escapes' in option arguments. </p>
-<p>We intend to make ImageMagick version 7 available as an Alpha release by the mid-year 2012. Look for a Beta release sometime in late 2012. An official ImageMagick version 7 release depends on how smoothly the Beta cycle progresses. During the Beta cycle, version 6 developers can attempt to port their software to version 7.<p>
+<p>ImageMagick version 7 is available now as an <a href="http://www.imagemagick.org/download/alpha/">Alpha</a> release. Look for a Beta release around mid-April 2013. An official ImageMagick version 7 release depends on how smoothly the Beta cycle progresses. During the Beta cycle, version 6 developers can attempt to port their software to version 7.<p>
<p>During the ImageMagick version 7 development cycle and release, we will continue to support and enhance version 6 for a minimum of 10 years.</p>
</div>
+<h2><a id="hdri"></a>High Dynamic Range Imaging</h2>
+<div class="doc-section">
+<p>ImageMagick version 7 enables <a href="high-dynamic-range.html">high dynamic range imaging</a> (HDRI) by default. HDRI accurately represents the wide range of intensity levels found in real scenes ranging from the brightest direct sunlight to the deepest darkest shadows. In addition, image processing results are more accurate. The disadvantage is it requires more memory and may result in slower processing times. To disable HDRI (recommended for smart phone builds such as iOS), simply add --disable-hdri to the configure script command line when building ImageMagick.</p>
+</div>
<h2><a id="channels"></a>Pixel Channels</h2>
<div class="doc-section">
<p>A pixel is comprised of one or more color values, or <em>channels</em> (e.g. red pixel channel).</p>
@@ -349,23 +339,17 @@
status=MagickFalse;
continue;
}
- for (x=0; x < (ssize_t) image->columns; x++)
+ for (x = 0; x < (ssize_t) image->columns; x++)
{
register ssize_t
i;
- for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
+ for (i = 0; i < (ssize_t) GetPixelChannels(image); i++)
{
- PixelChannel
- channel;
-
- PixelTrait
- traits;
-
- channel=GetPixelChannelMapChannel(image,i);
- traits=GetPixelChannelMapTraits(image,channel);
- if (((traits & UpdatePixelTrait) == 0) || (GetPixelMask(image,q) != 0))
- continue
+ PixelChannel channel = GetPixelChannelMapChannel(image,i);
+ PixelTrait traits = GetPixelChannelMapTraits(image,channel);
+ if (((traits & UpdatePixelTrait) == 0) || (GetPixelMaskR(image,q) != 0))
+ continue;
q[i]=QuantumRange-q[i];
}
q+=GetPixelChannels(image);
@@ -377,53 +361,35 @@
<p>Note, how we use GetPixelChannels() to advance to the next set of pixel channels.</p>
-<p>The colormap indexes and black pixel channel (for the CMYK colorspace) are no longer stored in the index channel, previously accessed with GetAuthenticIndexQueue() and GetCacheViewAuthenticIndexQueue((). Instead they are now a pixel channel and accessed with the convenience pixel accessor methods GetPixelIndex(), SetPixelIndex(), GetPixelBlack(), and SetPixelBlack().</p>
+<p>The colormap indexes and black pixel channel (for the CMYK colorspace) are no longer stored in the index channel, previously accessed with GetAuthenticIndexQueue() and GetCacheViewAuthenticIndexQueue(). Instead they are now a pixel channel and accessed with the convenience pixel accessor methods GetPixelIndex(), SetPixelIndex(), GetPixelBlack(), and SetPixelBlack().</p>
<h4></a>Pixel Accessors</h4>
<p>Use accessors to get or set pixel channels:</p>
<pre class="text">
- GetPixelAlpha()
- GetPixelBlack()
- GetPixelBlue()
- GetPixelCb()
- GetPixelChannels()
- GetPixelCr()
- GetPixelCyan()
- GetPixelGray()
- GetPixelGreen()
- GetPixelIndex()
- GetPixelInfoIntensity()
- GetPixelInfoLuminance()
- GetPixelMagenta()
- GetPixelRed()
- GetPixelPacket()
- GetPixelPacketIntensity()
- GetPixelY()
- GetPixelYellow()
- GetPixelIntensity()
- SetPixelAlpha()
- SetPixelBlack()
- SetPixelBlue()
- SetPixelCb()
- SetPixelChannels()
- SetPixelCr()
- SetPixelCyan()
- SetPixelGray()
- SetPixelGreen()
- SetPixelIndex()
- SetPixelInfo()
- SetPixelInfoBias()
- SetPixelInfoPacket()
- SetPixelMagenta()
- SetPixelRed()
- SetPixelPacket()
- SetPixelPixelInfo()
- SetPixelYellow()
- SetPixelY()
+ GetPixela() SetPixela()
+ GetPixelAlpha() SetPixelAlpha()
+ GetPixelb() SetPixelb()
+ GetPixelBlack() SetPixelBlack()
+ GetPixelBlue() SetPixelBlue()
+ GetPixelCb() SetPixelCb()
+ GetPixelCr() SetPixelCr()
+ GetPixelCyan() SetPixelCyan()
+ GetPixelGray() SetPixelGray()
+ GetPixelGreen() SetPixelGreen()
+ GetPixelIndex() SetPixelIndex()
+ GetPixelL() SetPixelL()
+ GetPixelMagenta() SetPixelMagenta()
+ GetPixelReadMask() SetPixelReadMask()
+ GetPixelWriteMask() SetPixelWriteMask()
+ GetPixelMetacontentExtent() SetPixelMetacontentExtent()
+ GetPixelOpacity() SetPixelOpacity()
+ GetPixelRed() SetPixelRed()
+ GetPixelYellow() SetPixelYellow()
+ GetPixelY() SetPixelY()
</pre>
-<p>You can find these accessors defined in the header file, <kbd>MagickCore/pixel-accessor.h</kbd></p>
+<p>You can find these accessors defined in the header file, <code>MagickCore/pixel-accessor.h</code></p>
<h4></a>Pixel Traits</h4>
<p>Each pixel channel includes one or more of these traits:</p>
@@ -439,33 +405,19 @@
</dl>
<p>We provide these methods to set and get pixel traits:</p>
<pre class="text">
- GetPixelAlphaTraits()
- GetPixelBlackTraits()
- GetPixelBlueTraits()
- GetPixelCbTraits()
- GetPixelCrTraits()
- GetPixelCyanTraits()
- GetPixelGrayTraits()
- GetPixelGreenTraits()
- GetPixelIndexTraits()
- GetPixelMagentaTraits()
- GetPixelRedTraits()
- GetPixelChannelTraits()
- GetPixelYTraits()
- GetPixelYellowTraits()
- SetPixelAlphaTraits()
- SetPixelBlackTraits()
- SetPixelBlueTraits()
- SetPixelCbTraits()
- SetPixelChannelTraits()
- SetPixelCrTraits()
- SetPixelGrayTraits()
- SetPixelGreenTraits()
- SetPixelIndexTraits()
- SetPixelMagentaTraits()
- SetPixelRedTraits()
- SetPixelYellowTraits()
- SetPixelYTraits()
+ GetPixelAlphaTraits() SetPixelAlphaTraits()
+ GetPixelBlackTraits() SetPixelBlackTraits()
+ GetPixelBlueTraits() SetPixelBlueTraits()
+ GetPixelCbTraits() SetPixelCbTraits()
+ GetPixelChannelTraits() SetPixelChannelTraits()
+ GetPixelCrTraits() SetPixelCrTraits()
+ GetPixelGrayTraits() SetPixelGrayTraits()
+ GetPixelGreenTraits() SetPixelGreenTraits()
+ GetPixelIndexTraits() SetPixelIndexTraits()
+ GetPixelMagentaTraits() SetPixelMagentaTraits()
+ GetPixelRedTraits() SetPixelRedTraits()
+ GetPixelYellowTraits() SetPixelYellowTraits()
+ GetPixelYTraits() SetPixelYTraits()
</pre>
<p>For convenience you can set the active trait for a set of pixel channels with a channel mask and these methods:</p>
<pre class="text">
@@ -474,7 +426,7 @@
SetPixelChannelMask()
</pre>
-<p>Previously MagickCore methods had channel analogs, for example, NegateImage() and NegateImageChannels(). The channel analog methods are no longer necessary because the pixel channel traits specify whether to act on a particular pixel channel and whether to blend with the alpha mask. For example, instead of</p>
+<p>Previously MagickCore methods had channel analogs, for example, NegateImage() and NegateImageChannels(). The channel analog methods are no longer necessary because the pixel channel traits specify whether to act on a particular pixel channel or whether to blend with the alpha mask. For example, instead of</p>
<pre class="text">
NegateImageChannel(image,channel);
</pre>
@@ -501,11 +453,20 @@
<h2><a id="alpha"></a>Alpha</h2>
<div class="doc-section">
-<p>We support alpha now, previously opacity. With alpha, a value of 0 means that the pixel does not have any coverage information and is transparent; i.e. there was no color contribution from any geometry because the geometry did not overlap this pixel. A value of QuantumRange means that the pixel is opaque because the geometry completely overlapped the pixel. As a consequence, in version 7, the PixelInfo structure member alpha has replaced the previous opacity member.</p>
+<p>We support alpha now, previously opacity. With alpha, a value of 0 means that the pixel does not have any coverage information and is transparent; i.e. there was no color contribution from any geometry because the geometry did not overlap this pixel. A value of QuantumRange means that the pixel is opaque because the geometry completely overlapped the pixel. As a consequence, in version 7, the PixelInfo structure member alpha has replaced the previous opacity member. Another consequence is the alpha part of a sRGB value in hexadecimal notation is now reversed (e.g. #0000 is fully transparent).</p>
</div>
<h2><a id="grayscale"></a>Grayscale</h2>
<div class="doc-section">
-<p>Previously, grayscale images consumed 4 channels: red, green, blue, and alpha. With version 7, grayscale consumes only 1 channel consuming far less resources as a result. However, there may be unintended consequences. With 1 channel, all image processing algorithms write to this one channel. Drawing yellow text on a grayscale image will produce gray lettering. To get the expected results, simply modify the colorspace to RGB (e.g. -colorspace rgb).</p>
+<p>Previously, grayscale images were Rec601Luminance and consumed 4 channels: red, green, blue, and alpha. With version 7, grayscale consumes only 1 channel requiring far less resources as a result.</p>
+</div>
+
+<h2><a id="mask"></a>Masks</h2>
+<div class="doc-section">
+<p>Version 7 supports masks for most image operators. As an example, here are two methods to compute the statistics of any pixel selected by the image mask:</>
+<pre class="text">
+identify -verbose -clip r statue.tif
+identify -verbose -mask r mask.png statue.tif
+</pre>
</div>
<h2><a id="core"></a>MagickCore API</h2>
@@ -521,7 +482,7 @@
</div>
<h2><a id="headers"></a>Header Files</h2>
<div class="doc-section">
-<p>Prior versions of ImageMagick (4-6) reference the ImageMagick header files as <kbd>magick/</kbd> and <kbd>wand/</kbd>. ImageMagick 7 instead uses <kbd>MagickCore/</kbd> and <kbd>MagickWand/</kbd> respectively. For example,</p>
+<p>Prior versions of ImageMagick (4-6) reference the ImageMagick header files as <code>magick/</code> and <code>wand/</code>. ImageMagick 7 instead uses <code>MagickCore/</code> and <code>MagickWand/</code> respectively. For example,</p>
<pre class="code">
#include <MagickCore/MagickCore.h>
#include <MagickWand/MagickWand.h>
@@ -530,7 +491,7 @@
<h2><a id="deprecate"></a>Deprecated Features Removed</h2>
<div class="doc-section">
-<p>All deprecated features from ImageMagick version 6 are removed in version 7. These include the <kbd>Magick-config</kbd> and <kbd>Wand-config</kbd> configuration utilities. Instead use:</p>
+<p>All deprecated features from ImageMagick version 6 are removed in version 7. These include the <code>Magick-config</code> and <code>Wand-config</code> configuration utilities. Instead use:</p>
<pre class="code">
MagickCore-config
@@ -538,7 +499,7 @@
</pre>
<p>The FilterImage() method has been removed. Use ConvolveImage() instead.</p>
-<p>In addition, all deprecated <a href="http://magick.imagemagick.org/api/deprecate.html">MagickCore</a> and <a href="http://magick.imagemagick.org/api/magick-deprecate.html">MagickWand</a> methods are no longer available in version 7.</p>
+<p>In addition, all deprecated <a href="../api/deprecate.html">MagickCore</a> and <a href="../api/magick-deprecate.html">MagickWand</a> methods are no longer available in version 7.</p>
</div>
@@ -565,9 +526,9 @@
interactive usage. </p>
<p>The parenthesis options used to 'push' the current image list, and image
-settings (EG: '<kbd>(</kbd>' and '<kbd>)</kbd>' ) on to a stack now has
+settings (EG: '<code>(</code>' and '<code>)</code>' ) on to a stack now has
a completely seperate image settings stack. That is parenthesis 'push/pull'
-image lists, and curly braces (EG: '<kbd>{</kbd>' and '<kbd>}</kbd>' ) will
+image lists, and curly braces (EG: '<code>{</code>' and '<code>}</code>' ) will
'push/pull' image settings. </p>
<p>Of course due to the previously reported changes to the underlying channel
@@ -578,73 +539,80 @@
channels. Most operators will blend alpha the other color channels, but other
operators (and situations) may require this blending to be disabled, and is
currently done by removing alpha from teh active channels via
-<kbd>-channel</kbd> option. (e.g. <kbd>convert castle.gif -channel RGB
--negate castle.png</kbd>). </p>
+<code>-channel</code> option. (e.g. <code>convert castle.gif -channel RGB
+-negate castle.png</code>). </p>
<p>Reading gray-scale images will generate a image with only one channel. If
-that image is to then accept color the <kbd>-colorspace</kbd> setting needs to
+that image is to then accept color the <code>-colorspace</code> setting needs to
be applied to expand the one channel into separate RGB (or other) channels.
</p>
<h3>Command Changes</h3>
<dl>
<dt>magick</dt>
-<dd>The "<kbd>magick</kbd>" command is the new primary command of the Shell
- API, replacing the old "<kbd>convert</kbd>" command. This allows you to
- create a 'magick script' of the form "<kbd>#!/path/to/command/magick
- -script</kbd>", or pipe options into a command "<kbd>magick -script
- -</kbd>, as abackground process. </dd>
+<dd>The "<code>magick</code>" command is the new primary command of the Shell
+ API, replacing the old "<code>convert</code>" command. This allows you to
+ create a 'magick script' of the form "<code>#!/path/to/command/magick
+ -script</code>", or pipe options into a command "<code>magick -script
+ -</code>, as abackground process. </dd>
<dt>magick-script</dt>
-<dd>This the same as "<kbd>magick</kbd>", (only command name is different)
- but which has an implict "<kbd>-script</kbd>" option. This allows you to
- use it in an "<kbd>env</kbd>" style script form. That is a magick script
- starts with the 'she-bang' line of "<kbd>#!/usr/bin/env
- magick-script</kbd>" allowing the script interpreter to be found anywhere
- on the users command "<kbd>PATH</kbd>". This is required to get around
+<dd>This the same as "<code>magick</code>", (only command name is different)
+ but which has an implict "<code>-script</code>" option. This allows you to
+ use it in an "<code>env</code>" style script form. That is a magick script
+ starts with the 'she-bang' line of "<code>#!/usr/bin/env
+ magick-script</code>" allowing the script interpreter to be found anywhere
+ on the users command "<code>PATH</code>". This is required to get around
a "one argument she-bang bug" that is common on most UNIX systems
(including Linux, but not MacOSX).</dd>
</dl>
+<h3>Behavorial Changes</h3>
+<p>Some options have changed in ImageMagick version 7. These include:</p>
+<dl>
+<dt>-combine</dt>
+<dd>This option now requires an argument, the image colorspace (e.g. -combine sRGB).</dd>
+</dl>
+
<h3>New Options</h3>
<p>ImageMagick version 7 supports these new options, though most are limited
-to the "<kbd>magick</kbd>" command, or to use in "<kbd>magick</kbd>"
+to the "<code>magick</code>" command, or to use in "<code>magick</code>"
scripts.</p>
<dl>
<dt>{ ... }</dt>
<dd>Save (and restore) the current image settings (internally known as the
"image_info" structure). This is automatically done with parenthesis (EG:
- '<kbd>(</kbd>' and '<kbd>)</kbd>') is "<kbd>-regard-parenthesis</kbd>" has
+ '<code>(</code>' and '<code>)</code>') is "<code>-regard-parenthesis</code>" has
been set, just as in IMv6. Caution is advised to prevent un-balanced
braces errors.</dd> </dd>
<dt>--</dt>
-<dd>End of options, to be used in IMv7 "<kbd>mogrify</kbd>" command to
+<dd>End of options, to be used in IMv7 "<code>mogrify</code>" command to
explictally separate the operations to be applied and the images that
are to be processed 'in-place'. (not yet implemented). However if
- not provided, "<kbd>-read</kbd>" can still be used to differentiate
+ not provided, "<code>-read</code>" can still be used to differentiate
secondary image reads (for use in things like alpha composition) from
the 'in-place' image being processed. </dd>
<dd>In other commands (such as "magick") it is equivelent to a explict
- "<kbd>-read</kbd>" (see below) of the next option as a image (as it was in
+ "<code>-read</code>" (see below) of the next option as a image (as it was in
IMv6). </dd>
<dt>-channel-fx <em class="arg">expression</em> </dt>
<dd>
<p>exchange, extract, or copy one or more image channels.</p>
-<p>The expression consists of one or more channels, either mnemonic or numeric (e.g. red, 1), separated by certain operation symbols as follows:</p>
+<p>The expression consists of one or more channels, either mnemonic or numeric (e.g. red or 0, green or 1, etc.), separated by certain operation symbols as follows:</p>
<pre class="text">
<=> exchange two channels (e.g. red<=>blue)
=> copy one channel to another channel (e.g. red=>green)
= assign a constant value to a channel (e.g. red=50%)
, write new image with channels in the specified order (e.g. red, green)
- ; add a new output image for the next set of channel operations
- | move to the next input image for the source of channel data
+ ; add a new output image for the next set of channel operations (e.g. red; green; blue)
+ | move to the next input image for the source of channel data (e.g. | gray=>alpha)
</pre>
<p>For example, to create 3 grayscale images from the red, green, and blue channels of an image, use:</p>
@@ -655,17 +623,28 @@
<p>A channel without an operation symbol implies separate (i.e, semicolon).</p>
+<p>Here we take an sRGB image and a grayscale image and inject the grayscale image into the alpha channel:</p>
+<pre class="text">
+ convert wizard.png mask.pgm -channel-fx '| gray=>alpha' wizard-alpha.png
+</pre>
+<p>Use a similar command to define a read mask:</p>
+<pre class="text">
+ convert wizard.png mask.pgm -channel-fx '| gray=>read-mask' wizard-mask.png
+</pre>
+
+<p>Add <code>-debug pixel</code> prior to the <code>-channel-fx</code> option to track the channel morphology.</p>
+
</dd>
<dt>-exit</dt>
<dd>Stop processing at this point. No further options will be processed after
- this option. Can be used in a script to force the "<kbd>magick</kbd>"
+ this option. Can be used in a script to force the "<code>magick</code>"
command to exit, without actually closing the pipeline that it is
processing options from. </dd>
-<dd>May also be used as a 'final' option on the "<kbd>magick</kbd>" command
+<dd>May also be used as a 'final' option on the "<code>magick</code>" command
line, instead of a implicit output image, to completely prevent any image
- write. ASIDE: even the "<kbd>NULL:</kbd>" coder requires at least one
+ write. ASIDE: even the "<code>NULL:</code>" coder requires at least one
image, for it to 'not write'! This option does not require any images at
all. </dd>
@@ -673,15 +652,15 @@
<dd>Explicit read of an image, rather than an implicit read. This allows you
to read from filenames that start with an 'option' character, and which
otherwise could be mistaken as an option (unknown or otherwise). This will
- eventually be used in "<kbd>mogrify</kbd>" to allow the reading of
+ eventually be used in "<code>mogrify</code>" to allow the reading of
secondary images, and allow the use of image list operations within that
command. </dd>
<dt>-region</dt>
-<dd>not yet implemented in "<kbd>magick</kbd>". (very soon)</dd>
+<dd>not yet implemented in "<code>magick</code>". (very soon)</dd>
<dt>-script {file}</dt>
-<dd>In "<kbd>magick</kbd>", stop the processing of command line arguments as
+<dd>In "<code>magick</code>", stop the processing of command line arguments as
image operations, and read all further options from the given file or
pipeline.</dd>
@@ -700,46 +679,46 @@
(see <a href="http://www.imagemagick.org/Usage/convolve/" >IM Examples,
Convolve</a> ) as well as non-square <a
href="http://www.imagemagick.org/Usage/morphology/#user">user defined
- kernels</a>. Use <kbd>-define convolve:normalize=true</kbd> on the command-line to force normalization.</dd>
+ kernels</a>. Use <code>-define convolve:normalize=true</code> on the command-line to force normalization.</dd>
</dl>
-<h3>Depreciated warning given, but will work (for now)</h3>
+<h3>Deprecated warning given, but will work (for now)</h3>
<dl>
<dt>-affine</dt>
-<dd>Replaced by <kbd>-draw "affine ..."</kbd>. (see transform)</dd>
+<dd>Replaced by <code>-draw "affine ..."</code>. (see transform)</dd>
<dt>-average</dt>
-<dd>Replaced by <kbd>-evaluate-sequence Mean</kbd>.</dd>
+<dd>Replaced by <code>-evaluate-sequence Mean</code>.</dd>
<dt>-box</dt>
-<dd>Replaced by <kbd>-undercolor</kbd>.</dd>
+<dd>Replaced by <code>-undercolor</code>.</dd>
<dt>-deconstruct</dt>
-<dd>Replaced by <kbd>-layers CompareAny</kbd>.</dd>
+<dd>Replaced by <code>-layers CompareAny</code>.</dd>
<dt>-gaussian</dt>
-<dd>Replaced by <kbd>-gaussian-blur</kbd>.</dd>
+<dd>Replaced by <code>-gaussian-blur</code>.</dd>
<dt>-/+map</dt>
-<dd>Replaced by <kbd>-/+remap</kbd>.</dd>
+<dd>Replaced by <code>-/+remap</code>.</dd>
<dt>-/+matte</dt>
-<dd>Replaced by <kbd>-alpha Set/Off</kbd>.</dd>
+<dd>Replaced by <code>-alpha Set/Off</code>.</dd>
<dt>-transform</dt>
-<dd>Replaced by <kbd>-distort Affine "..."</kbd>.</dd>
+<dd>Replaced by <code>-distort Affine "..."</code>.</dd>
</dl>
-<h3>Depreciated warning given, and ignored (for now)</h3>
+<h3>Deprecated warning given, and ignored (for now)</h3>
<p>Almost 'plus' (+) option that did not do anything has been marked as
-depreciated, and does nothing. It does not even have associated code. For
+deprecated, and does nothing. It does not even have associated code. For
example "+annotate", "+resize", "+clut", and "+draw" .</p>
<dl>
<dt>-affinity</dt>
-<dd>Replaced by <dd>-affinity</kbd>.</dd>
+<dd>Replaced by <dd>-affinity</code>.</dd>
<dt>-maximum</dt>
-<dd>Replaced by <kbd>-evaluate-sequence Max</kbd>.</dd>
+<dd>Replaced by <code>-evaluate-sequence Max</code>.</dd>
<dt>-median</dt>
-<dd>Replaced by <kbd>-evaluate-sequence Median</kbd>.</dd>
+<dd>Replaced by <code>-evaluate-sequence Median</code>.</dd>
<dt>-minimum</dt>
-<dd>Replaced by <kbd>-evaluate-sequence Min</kbd>.</dd>
+<dd>Replaced by <code>-evaluate-sequence Min</code>.</dd>
<dt>-recolor</dt>
-<dd>Replaced by <dd>-color-matrix</kbd>.</dd>
+<dd>Replaced by <dd>-color-matrix</code>.</dd>
</dl>
<h3>Removed / Replaced Options ("no such option" error and abort)</h3>
@@ -748,35 +727,41 @@
<dt>-origin</dt>
<dd>old option, unknown meaning.</dd>
<dt>-pen</dt>
-<dd>Replaced by <dd>-fill</kbd>.</dd>
+<dd>Replaced by <dd>-fill</code>.</dd>
<dt>-passphrase</dt>
<dd>old option, unknown meaning</dd>
</dl>
-
-</div>
<h2><a id="summary"></a>Version 7 Change Summary</h2>
<div class="doc-section">
<p>Changes from ImageMagick version 6 to version 7 are summarized here:</p>
-<h5>Pixels</h5>
+<h4>High Dynamic Range Imaging</h4>
+<dl>
+<li>ImageMagick version 7 enables HDRI by default. Expect more accurate image processing results with higher memory requirement and possible slower processing times.</li>
+</dl>
+<h4>Pixels</h4>
<dl>
<li>Pixels are no longer addressed with PixelPacket structure members (e.g. red, green, blue, opacity) but as an array of channels (e.g. pixel[PixelRedChannel]).</li>
<li>Use convenience macros to access pixel channels (e.g. GetPixelRed(), SetPixelRed()).</li>
-<li>The black channel for the CMYK colorspace is no longer stored in the index channel, previously accessed with GetAuthenticIndexQueue() and GetCacheViewAuthenticIndexQueue((). Instead it is now a pixel channel and accessed with the convenience pixel macros GetPixelBlack() and SetPixelBlack().</li>
-<li>The index channel for colormapped images is no longer stored in the index channel, previously accessed with GetAuthenticIndexQueue() and GetCacheViewAuthenticIndexQueue((). Instead it is now a pixel channel and accessed with the convenience pixel macros GetPixelIndex() and SetPixelIndex().</li>
+<li>The black channel for the CMYK colorspace is no longer stored in the index channel, previously accessed with GetAuthenticIndexQueue() and GetCacheViewAuthenticIndexQueue(). Instead it is now a pixel channel and accessed with the convenience pixel macros GetPixelBlack() and SetPixelBlack().</li>
+<li>The index channel for colormapped images is no longer stored in the index channel, previously accessed with GetAuthenticIndexQueue() and GetCacheViewAuthenticIndexQueue(). Instead it is now a pixel channel and accessed with the convenience pixel macros GetPixelIndex() and SetPixelIndex().</li>
<li>Use GetPixelChannels() to advance to the next set of pixel channels.</li>
<li>Use the <em>metacontent</em> channel to associate metacontent with each pixel.</li>
<li>All color packet structures, PixelPacket, LongPacket, and DoublePacket, are consolidated to a single color structure, PixelInfo.</li>
</dl>
-<h5>Alpha</h5>
+<h4>Alpha</h4>
<dl>
<li>We support alpha rather than opacity (0 transparent; QuantumRange opaque).</li>
<li>Use GetPixelAlpha() or SetPixelAlpha() to get or set the alpha pixel channel value.</li>
</dl>
-<h5>Grayscale</h5>
+<h4>Grayscale</h4>
<dl>
<li>Grayscale images consume one pixel channel in ImageMagick version 7. To process RGB, set the colorspace to RGB (e.g. -colorspace rgb).</li>
</dl>
-<h5>MagickCore API</h5>
+<h4>Distributed Pixel Cache</h4>
+<dl>
+<li><a href="distribute-pixel-cache.html">Distributed pixel cache</a>: offload intermediate pixel storage to one or more remote servers.</li>
+</dl>
+<h4>MagickCore API</h4>
<dl>
<li>Almost all image processing algorithms are now channel aware.</li>
<li>MagickCore, version 7, adds an ExceptionInfo argument to those methods that lacked it in version 6, e.g. NegateImage(image,MagickTrue,exception);</li>
@@ -785,7 +770,7 @@
<li>The InterpolatePixelMethod enum is now PixelInterpolateMethod.</li>
<li>To account for variable pixel channels, images may now return a different signature.</li>
</dl>
-<h5>Deprecated Methods</h5>
+<h4>Deprecated Methods</h4>
<dl>
<li>All ImageMagick version 6 MagickCore and MagickWand deprecated methods are removed and no longer available in ImageMagick version 7.</li>
<li>All MagickCore channel method analogs are removed (e.g. NegateImageChannels()). For version 7, use pixel traits instead.</li>
@@ -798,9 +783,11 @@
<div id="linkbar">
<span id="linkbar-west"> </span>
+
<span id="linkbar-center">
- <a href="../discourse-server">Discourse Server</a> •
- <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a>
+ <a href="http://www.imagemagick.org/discourse-server/">Discourse Server</a> •
+ <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a> •
+ <a href="http://jqmagick.imagemagick.org/">JqMagick</a>
</span>
<span id="linkbar-east"> </span>
</div>
@@ -809,16 +796,5 @@
<span id="footer-east"> <a href="contact.html">Contact the Wizards</a></span>
</div>
<div style="clear: both; margin: 0; width: 100%; "></div>
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