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A comment on Make photomosaics, GIFs, and murals from pictures in Python with ML/OpenCV. Parent comment

Re:Make photomosaics, GIFs, and murals from pictures in Pyth... by muzakthings on Thursday December 13, 2018 @03:18PM (#18675662)
It didn’t make a ton of difference empirically when I tried it.

But you’re correct, generally that’s the space you want to be in.

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Re:Make photomosaics, GIFs, and murals from pictures in Pyth... by gedy on Thursday December 13, 2018 @03:42PM (#18675882)
It is quite noticeable when you are using a limited selection of tiles or image has desaturated colors.

I've done some similar work[1], but issue with L*ab color is it's terrifically slow to calculate diff, at least in JS.

[1] https://imgur.com/a/g3EzcSV

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Re:Make photomosaics, GIFs, and murals from pictures in Pyth... by muzakthings on Thursday December 13, 2018 @03:56PM (#18676013)
Totally. Everything improves with more images since that’s your palette for painting, so to speak. The ones I posted were with less than 100 images so you can definitely do better.

L*b was very slow, yes. It’s all done offline but I tend to like quicker feedback...

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Re:Make photomosaics, GIFs, and murals from pictures in Pyth... by itronitron on Thursday December 13, 2018 @09:42PM (#18678022)
there is no perfect way to measure color distances, mostly because it needs to account for human perception of color and there are individual differences in color perception among people.
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