For reasons I'll explain in a futur write-up, I needed to make use of a perceptually uniform colorspace in some computer vision code. OkLab from Björn Ottosson was a great candidate given how simple the implementation is. But there is a plot twist: I needed the code to be deterministic for the tests to be portable across a large variety of architecture, systems and configurations. Several solutions were offered to me, including reworking the test framework to support a difference mechanism w...
