Atkinson dither algorithm

[Alejandro Tejada]

Hi All,

This forum message contains the final version of this stack.
It includes a Color version of this algorithm.

https://forums.livecode.com/viewtopic.php?f=10&p=159173#p159173

Thanks again to Malte Brill, Richard Gaskin, Hermann Hoch, Mark Waddingham,
Peter Reid, Ben Rubinstein, Bob Sneidar and Lagi Pittas for posting scripts
and
writing ideas to improve this handler.

Al