I am back working on contrast, starting with manual contrast as we called it, where you simply apply a formula to all pixels.
We have two formulas so far: 1. out = (in - pivot) * contrast + pivot 2. out = pow(in * pow(pivot, 1.0 / contrast - 1.0), contrast) I am ok with 1), have used it before, but I need to confirm the math source for 2) and I can't find one, sent Malcolm a mail on this. Some questions: 1. Should I have these as two separate functions or have an enum to decide which to apply? Malcolm called them Linear and Filmic, we could use those names. 2. If you want other formulas for manual contrast adjustment included please let me know. Stefan
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