[Image-SIG] Png24 to GIF image size

Charlie Clark charlie.clark at clark-consulting.eu
Fri May 20 22:33:58 CEST 2011

Am 20.05.2011, 20:08 Uhr, schrieb Christopher Barker  
<Chris.Barker at noaa.gov>:

> I'm not speaking with authority here, but back when the "GIF patent" was  
> still active, some Open Source GIF drivers didn't compress, as the  
> compression was the patented part of the format.
>  So that _may_ be the case here.

Nah, Unisys patented the format which essentially uses a 256 colour  
palette for compression. LZW compression doesn't make much difference on  
this file.

I *think* the problem is you are not creating the palette very  
intelligently there are only 20 colours in the palette.

Charlie Clark
Managing Director
Clark Consulting & Research
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Helmholtzstr. 20
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Tel: +49-211-600-3657
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