<https://forums.getpaint.net/topic/17805-tool-plugins/#comment-306427>
<http://schema.org/text>
"Yeah, that's pretty much the idea, but (from memory) I think it attempts to ensure that the Laplacian matches up between the luma and chroma channels, rather than the gradient. And it uses YCbCr, which is a very popular linear color space - SDTV, HDTV, JPEG, and probably tons of other things use it, mostly because it facilitates downsampling of color information while leaving intensity information roughly unchanged. "
<https://forums.getpaint.net/topic/17805-tool-plugins/?tab=comments#comment-306400>