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  • 1 (2019-10-14 (Mon) 22:25:49)
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- Color quantization using octrees
--   http://www.leptonica.org/papers/colorquant.pdf


- A Simple Method for Color Quantization: Octree Quantization
--  https://link.springer.com/chapter/10.1007/978-3-642-83492-9_20

- Octree Color Quantization
--  https://www.cubic.org/docs/octree.htm