Hi,
I am the author of a read support for GIF images and at last found some
time to get down to writing an output plugin.
As far as I know the GIF specification enforces the usage of an indexed
color map limited to 256 colors. So to do any sensible conversion from
high resolution source image, some kind of color quantization and
dithering is needed. I did a little lookup and found this thread from 2010:
http://lists.openimageio.org/pipermail/oiio-dev-openimageio.org/2010-December/003687.html
Larry, you raised the issue that dithering shouldn't be implemented by
an individual plugin and how should it be exactly done is a matter to
think over. What is the current status of the subject? Have you had any
thoughts how should it be resolved?
Regards,
Mariusz
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