On Thu, May 28, 2009 at 7:30 PM, Stani <[email protected]> wrote:
> Nadia, could you have a look at the palette/transparency part of the > code? Just a second check. > Just in case my comments aren't clear in the referenced code: In PIL.Image.Image._new, which is what actually provides the new image when convert() is called, a type 'P' Image object will be assigned a new color palette. This color palette has no relation to the color palette of the actual image. (I consider this to be a very serious bug in PIL). So what I do is get the palette from the converted image, and assign that to the Image.palette.palette. Secondly, since the color palette is most likely different after hte conversion, a simple index will not work. Instead save the transparent color value by looking up the index for it in the original palette. When the new palette is assigned, I then search for the transparent color value and save the appropriate index in the info['transparency'] attribute. In my test cases this works fine. If I skip either step, this does not work. If there is a simpler way to do this, please let me know! Regards, Erich
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