Photoshop: Grayscale color reduction algorithm in Save for Web window causes color banding

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  • Updated 1 year ago
Hello,
I've noticed that Grayscale color reduction algorithm in Save for Web window causes color banding when exporting color images (banding is visible when color palette is more reduced - to 16, 8... colors). However, when I first convert the image colors to grayscale via Image>Mode>Grayscale function and then I reduce the colors in the Save for Web window, color banding is significantly suppressed:


Besides, when using Black - White color reduction algorithm the Colors selection box is editable, however, does not do anything. I think that in this case the Colors box should be disabled since B/W color reduction algorithm only works with 2 colors.

OS: Win 10 Pro 64-bit, SW: Photoshop CC 2017.0.1

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MilP

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Posted 1 year ago

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