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10/16/09 13:13:48 (5 months ago)
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cristy
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  • ImageMagick/trunk/www/architecture.html

    r397 r399  
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    126    <a href="http://www.abi-stoff.de/abizeitung/" title="Abibuch">Abizeitung</a><!-- 20090501000200 --> 
     126   <a href="http://www.buerodruck.de/stempel-service/index.html">Stempel bestellen</a><!-- 200910000035+ --> 
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    238238<p>When the pixel cache is initialized, pixels are scaled from whatever bit depth they originated from to that required by the pixel cache.  For example, a 1-channel 1-bit monochrome PBM image is scaled to a 4 channel 8-bit RGBA image, if you are using the Q8 version of ImageMagick, and 16-bit RGBA for the Q16 version.  You can determine which version you have using the <a href="../www/command-line-options.html#version">&#x2011;version</a> option, as with this command: </p> 
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    240 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>identify -version</span><span class='crtout'>Version: ImageMagick 6.5.6-10 2009-10-01 Q16 http://www.imagemagick.org</span></p> 
     240<p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>identify -version</span><span class='crtout'>Version: ImageMagick 6.5.7-0 2009-0-01 Q16 http://www.imagemagick.org</span></p> 
    241241<p>As you can see, the convenience of the pixel cache sometimes comes with a trade-off in storage (e.g. storing a 1-bit monochrome image as 16-bit RGBA is wasteful) and speed (i.e. storing the entire image in memory is generally slower than accessing one scanline of pixels at a time).</p> 
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    12211221      <a href="http://www.imagemagick.org/discourse-server/">Discourse Server</a> &bull; 
    12221222      <a href="../www/mailing-list.html">Mailing Lists</a> &bull; 
    1223     <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a> 
     1223    <a href="http://studio.webbyland.com/ImageMagick/MagickStudio/scripts/MagickStudio.cgi">Studio</a> 
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