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For other breakfast scholars who wish to further my study, I offer my data and code. If you are so foolhardy that you wish to explore the bounds of dark breakfast yourself, the recipe is as follows:
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This algorithm attempts to minimise numerically. Because of this, the quality of the dither produced by Knoll’s algorithm is much higher than any other of the N-candidate methods we have covered so far. It is also the slowest however, as it requires a greater per-pixel to be really effective. More details are given in Knoll’s now expired patent[3]. I have put together a GPU implementation of Knoll’s algorithm on Shadertoy here.