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[SOLVED] Reduce 16 to 8 bits/channel with dithering

https://imagemagick.com/discourse-server/viewtopic.php?t=34483

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Re: [SOLVED] Reduce 16 to 8 bits/channel with dithering

Posted: 2018-07-31T02:42:52-07:00
by Lecram
I have created a possible bug report on this topic.

Given that
[…] I've found out that GIMP 2.10 now offers dithering when reducing bit depth […]
I would consider this thread as being solved.

Unfortunately this has to be done manually. As of now, GIMP does not expose this functionality to its scripting languages Script-Fu and Python-Fu.

Please see this thread and this bug report for further reference.

Re: [SOLVED] Reduce 16 to 8 bits/channel with dithering

Posted: 2018-07-31T06:49:14-07:00
by snibgo
I confirm we get only 64 shades, and I don't know why. I'm looking into it.

However, note that your "-remap palette.png -dither FloydSteinberg" is wrong. "-dither" is a setting that is used by "-remap", so should come before it, not after.

Re: [SOLVED] Reduce 16 to 8 bits/channel with dithering

Posted: 2018-07-31T21:38:56-07:00
by Lecram
Thank you. I appreciate that.
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