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Created September 24, 2021 23:08
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Color Palette Quantization in Photoshop
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ReadMe.md

Here's an example regarding the image color quantization I've been talking about.

This is an original subtitle bitmap having a palette of 4 or 5 colors:

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ELBG Filter (to 8-bit alpha palette)

ffmpeg -y -loglevel verbose -i "..\fate-suite\apng\o_sample.png" -filter_complex "elbg=pal8=1" -frames:v 1 out.png

image

ELBG with new Alpha-Patch (to 8-bit alpha palette)

ffmpeg -y -loglevel verbose -i "..\fate-suite\apng\o_sample.png" -filter_complex "elbg=pal8=1:use_alpha=1" -frames:v 1 out.png

image

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