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by mark-r 3422 days ago
There are lots of specific examples where incorrectness leads to perceptually significant problems. I'd agree that you don't normally notice it in the wild, which is why so much software has gotten away with it for so long.

It is possible to optimize the linearization steps so that they don't detract too much from the performance, especially if you're using one of the better (i.e. slower) interpolation methods.