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It'd be better to convert to HSL, and compute the distance from there. HSL-distance preserves color similarity with higher fidelity than converting both pixels
by arcastroe 1y ago
It'd be better to convert to HSL, and compute the distance from there.
HSL-distance preserves color similarity with higher fidelity than converting both pixels to greyscale as done in the shared link
- oivey 1y agoThat doesn’t address the issue at all. The issue is that discarding small changes in any color space is fundamentally lossy, so the algorithm isn’t lossless.
- arcastroe 1y agoWell yes.. I agree. But my comment was addressing parent's point that pure blue and pure red are currently considered close together since they share the same greyscale values.
- Sesse__ 1y agoYou mean something like L*ab, right, not HSL? HSL is a pretty terrible approximation to human vision.