Comment by nextlevelwizard

3 months ago

Is this actually dithering?

I have dabbled with some dithering algorithms and while this is way faster than my naive js implementations, this looks pretty bad

3 comments

nextlevelwizard

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IshKebab  3 months ago

Yes it is dithering. Unusual dithering though - I don't see why it is coloured. Is this intended for printers?

  • heftig  3 months ago

    The image gets de-saturated but the noise that's mixed in is colored. This looks like a mistake.

    I think the noise is also way too 'soft'. At high frequencies it just becomes near-uniform gray so it barely affects the thresholding.

    • kevinsync  3 months ago

      Yeah they could add grayscale to the filter rule to make the colors go away.

        #dither-demo img.dithered {
    filter: url(#dither) grayscale(1);
  }