Tutorial: dithering

[Snarky]

Monsieur OUXX, to just apply the dithering effect in a layer using the Mode:Indexed Color command, make the layer a smart object. Then you can open it as if it's a separate file.

Snarky, the tool I linked allows for dithering at 8bits, 4bits, 2bits and 1bit colours, and also has certain preset dither patterns, and sliders to vary them. That functionality isn't currently in photoshop, at least not as easily as it is to do with this.

Photoshop easily supports reducing to 8-bit or less (when you convert to Indexed Color, choose Palette: Local or Custom, and just set it to however many colors you want). It doesn't give you this amount of dithering control when reducing from 24-bit to 16-bit, but that's hardly a very relevant use-case these days, is it? It doesn't have preset dither patterns you can choose from, no.

[Monsieur OUXX]

to just apply the dithering effect in a layer using the Mode:Indexed Color command, make the layer a smart object. Then you can open it as if it's a separate file.

Very useful! Thanks.