3 ms·

This looks similar to the 2D "random number generators" at http://pippin.gimp.org/a_dither/ http://pippin.gimp.org/a_dither/ but is even more evenly distributed

• extremelearning 8y ago
  Yes. I think that using the dither matrix based on the R_2 sequence should be competitive with any of the the dither masks mentioned on that link. Thus in situations like video, and/or ray tracing where computing speed is of the essence, maybe a better mask such as the R2 dither mask would offer an improvement on existing methods. However, in terms of end-quality I am not aware of any dither masks that are anywhere near as good as the state-of-the-art error diffusion algorithms. Thus, for a small number of images such as our favourite animated gifs, I would still be recommending an error-diffusion method. :)