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Member "MagickStudio-1.9.6/Colormap.html" (14 Feb 2021, 3247 Bytes) of package /linux/www/MagickStudio-1.9.6.tar.gz:


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    1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    2     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    3 <html xmlns="http://www.w3.org/1999/xhtml">
    4 <head>
    5 <meta content="HTML Tidy for Linux/x86 (vers 1st March 2003), see www.w3.org"
    6       name="generator" />
    7 <title>Colormap Image</title>
    8 <link rel="StyleSheet" href="style/magick.css" type="text/css" />
    9 </head>
   10 <body bgcolor="#FFFFFF" text="#000000" link="#0085C0"
   11 vlink="#800080" alink="#0085C0">
   12 <center><img src="images/magick.png" align="bottom" width="114"
   13 height="113" /></center>
   14 <hr />
   15 <p>First define the preferred number of colors in your image. The
   16 actual number of colors in the image may be less than your request,
   17 but never more. Note, this is a color reduction option. Images with
   18 less unique colors than specified with this option will have any
   19 duplicate or unused colors removed. Refer to
   20 <a href="https://imagemagick.org/script/quantize.php">quantize</a>
   21 for more details.</p>
   22 <p>You also have a choice of several options that affect your image
   23 colormap. Choose from these options:</p>
   24 <dl>
   25 <dd>
   26 <dl>
   27 <dt><b>dither</b></dt>
   28 <dd>apply Floyd/Steinberg error diffusion to the image. The basic
   29 strategy of dithering is to trade intensity resolution for spatial
   30 resolution by averaging the intensities of several neighboring
   31 pixels. Images which suffer from severe contouring when reducing
   32 colors can be improved with this option.</dd><br />
   33 <dt><b>black &amp; white</b></dt>
   34 <dd>transform the image to black and white.</dd><br />
   35 <dt><b>global colormap</b></dt>
   36 <dd>create a single colormap for a sequence of images.</dd><br />
   37 <dt><b>netscape color cube</b></dt>
   38 <dd>map image to web safe colors.</dd><br />
   39 <dt><b>map to clipboard</b></dt>
   40 <dd>map image to clipboard colors.</dd><br />
   41 <dt><b>gray image</b></dt>
   42 <dd>transform the image to gray colors.</dd><br />
   43 <dt><b>ordered dither</b></dt>
   44 <dd>ordered dither.  The parameter should be one of
   45 <pre>
   46   threshold        Threshold Non-Dither
   47   checks           Checkerboard Dither
   48   o2x2             Ordered 2x2 Diffused Pixel
   49   o3x3             Ordered 4x4 Diffused Pixel
   50   o4x4             Ordered 4x4 Diffused Pixel
   51   o8x8             Ordered 8x8 Diffused Pixel
   52   h4x4a            Halftone 4x4 (angled)
   53   h6x6a            Halftone 6x6 (angled)
   54   h8x8a            Halftone 8x8 (angled)
   55   h4x4o            Halftone 4x4 (othogonal)
   56   h6x6o            Halftone 6x6 (othogonal)
   57   h8x8o            Halftone 8x8 (othogonal)
   58   h16x16o          Halftone 16x16 (othogonal)
   59   hlines6x4        Horizontal Lines 6x4
   60 </pre></dd><br />
   61 <dt><b>segment</b></dt>
   62 <dd>segment an image by analyzing the histograms of the color
   63 components and identifying units that are homogeneous with the
   64 fuzzy c-means technique.</dd><br />
   65 <dt><b>preserve transparent pixels</b></dt>
   66 <dd>by default color reduction does not preserve and transparent
   67 pixels in your image. Choose this option to reduce the number of
   68 colors in your image <em>while</em> preserving any transparent
   69 pixels.</dd><br /></dl></dd><br /></dl>
   70 <hr />
   71 <p>
   72 <a href="scripts/MagickStudio.cgi/?Action=mogrify&amp;ToolType=Comment&amp;SessionID=null&amp;Path=null"
   73    target="Comment"><img alt="[comment]" src="images/mail.png"
   74    border="0" /></a></p>
   75 </body>
   76 </html>