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From: jkellow@mozart.helios.nd.edu (John Kellow)
Newsgroups: comp.sys.mac.misc
Subject: Re: Displaying GIF files on desktop using custom palette
Message-ID: <378@news.nd.edu>
Date: 28 Aug 90 03:32:22 GMT
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Organization: University of Notre Dame,  Notre Dame
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I work around the problem of displaying desktop pictures with non-system
colors by changing the picture's palette instead of trying to change
the system palette.  I think Giffer has an option "Use Default Palette..."
or something like that.  It seems to do a quick and dirty remapping of the
picture to the system palette.  If the colors are close, then the picture
will look pretty good and you can just save the remapped image.  If the
picture has a lot of colors that are not in the system palette, then
it probably will look pretty bad in which case I use a public domain
image manipulation package called FBM that runs on unix machines.  The
FBM utilities can remap the colors in an image by dithering the image
with a specific set of colors ( in this case, the Macintosh system palette).
You lose some resolution that way, but the results are generally pretty good.


John Kellow
kellow@ndcheg.cheg.nd.edu