BTW Daniel (and others concerned), if during usage of the current
reader or writer in the future, you stumble across any bugs or if you
think some functionality can be improved or added, I would greatly
appreciate the feedback.
Any other suggestions are welcome as well.
Thanks!
On 13/10/13 21:08, Mariusz Szczepańczyk wrote:
Ok, it's definitely doable :)
On 13/10/13 18:45, Daniel Wexler wrote:
I will definitely use this plugin! Thanks for coding it up!
It would be extra super cool if you could submit multiple images and
have it create an animated GIF.
On Sun, Oct 13, 2013 at 9:10 AM, Larry Gritz <[email protected]
<mailto:[email protected]>> wrote:
In that thread, I meant the tiny amount of dither that is sometimes
added when converting floating point to integer data, usually the
magnitude of the dither is just +/- 1/2 quantization unit, right
before the conversion to integer. We never tackled that, and as far
as I know, nobody has really brought it up since then (despite
pretty widespread use of the tools), so I'm assuming it's not a
pressing issue.
For a format like GIF where the only supported output format is an
indexed color map, I would certainly expect the plugin to handle the
selection of color map and dithering to try to make a continuous
image look as good as possible under those constraints.
On Oct 13, 2013, at 7:42 AM, Mariusz Szczepańczyk wrote:
> 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
>
--
Larry Gritz
[email protected] <mailto:[email protected]>
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