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0 pointsnextlevelwizard2d ago0 comments

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

0 comments

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

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.

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

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

j / k navigate · click thread line to collapse

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

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.

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

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

j / k navigate · click thread line to collapse