Tests: Add webp lossless test with color index and < 16 colors

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For the test files, I opened Base/res/icons/catdog/alert.png in Adobe
Photoshop 2023, used Image->Mode->Index Color...->
Palette: Local (Perceptive) to reduce the number of colors to 13, 8, and
3 with transparency, and 2 without transparency, then converted it back
to Image->Mode->RGB Color (else it can't be saved as webp), then
File->Save a Copy... to save a WebP (mode lossless) for every palette
size.

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This commit is contained in:

Nico Weber 2023-04-07 18:40:28 -04:00 • committed by Linus Groh

parent 1dab480015

commit f2efb97578

5 changed files with 40 additions and 0 deletions

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