[magick-users] newbie: adjust the number of clolors in GIF file

[Anthony Thyssen]

On Mon, 17 Nov 2008 21:33:19 -0800 (PST)
vuthecuong <vuthecuong at luvina.net> wrote:

| 
| Hi,
| How can I adjust the number of clolors in GIF file? which command does this
| job?
| regads,
| -- 
| View this message in context: http://www.nabble.com/newbie%3A-adjust-the-number-of-clolors-in-GIF-file-tp20553851p20553851.html
| Sent from the Magick-users mailing list archive at Nabble.com.
| 
IM automatically limits the colors in a GIF file to 256 as that is the
format limitation.

However if you use -colors and -dither you can control this aspect yourself.
See IM Examples,  Common File Format GIF
   http://www.imagemagick.org/Usage/formats/#gif
and Color Quantization and Dithering
   http://www.imagemagick.org/Usage/quantize/



  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
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   The difference between men and boys, is the price of their toys!
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     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/