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60 lines
1.5 KiB
HTML
60 lines
1.5 KiB
HTML
<!doctype HTML public "-//W3O//DTD W3 HTML 2.0//EN">
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<HTML>
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<HEAD>
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<TITLE>rgb2gif</TITLE>
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<link rev=made href=mailto:esr@snark.thyrsus.com>
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</HEAD>
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<BODY>
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Go to <a href="index.html">index page</a>.
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<CENTER><H1>rgb2gif</H1></CENTER>
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A program to convert 24 bit images to a GIF image using color quantization.<P>
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<H1>Usage:</H1>
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<pre>
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rgb2gif [-q] [-c #Colors] [-1] -s Width Height [-h] RGBFile
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</pre>
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If no RGBFile is given, RGB2Gif will try to read a GIF file from stdin.<P>
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<H1>Memory required:</H1>
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Screen.
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<H1>Options:</H1>
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<DL>
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<DT> [-q]
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<DD> Quiet mode. Defaulte off on MSDOS, on under UNIX. Controls printout
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of running scan lines. Use -q- to invert.<P>
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<DT> [-c #Colors]
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<DD> Specifies number of colors to use, in bits per pixels, so
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'-c 8' specifies actually 256 colors (maximum and default).<P>
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<DT> [-1]
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<DD> Only one file in the format of RGBRGB... triplets (Each of R, G, B
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is a byte) is read from input. This file size is 3 * Width * Height (see
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'-s' below. If stdin is used for input, this option is implicitly applied.
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The default (if not '-1') is 3 files with the names RGBFile.R, RGBFile.G,
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RGBFile.B, each of which is Width * Height bytes.<P>
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<DT> [-s Width Height]
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<DD> Specifies the size of the image to read.<P>
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<DT> [-h]
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<DD> Print one line of command line help, similar to Usage above.<P>
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</DL>
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<H1>Author:</H1>
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Gershon Elber
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<HR>
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<ADDRESS>Eric S. Raymond <A HREF="mailto:esr@thyrsus.com"><esr@snark.thyrsus.com></A></ADDRESS>
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</BODY>
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</HTML>
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