Not sure if it is what was used, but there is a Bill Atkinson dither for HTML ca... | Hacker News

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		wmwragg on March 20, 2020 \| parent \| context \| favorite \| on: A principled approach to system design and program... Not sure if it is what was used, but there is a Bill Atkinson dither for HTML canvas here https://ipenburg.home.xs4all.nl/atkinsome/ and a mac version here https://www.tinrocket.com/content/hyperdither/#history

lioeters on March 20, 2020 [–]

Nice one! Found the source for the first linked page:

https://github.com/ipenburg/Atkinsome

The script is about 8 years old and depends on MooTools, but shouldn't be too hard to modernize it.

Here's a newer implementation of the Atkinson dither algorithm on Node.js.

https://github.com/rtrvrtg/node-atkinson-dither

Edit: This dither library includes Atkinson:

https://github.com/danielepiccone/ditherjs

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