I changed my mind about the parameter bool absolute. No need to have it. contrast = 1 does not modify the image, values 0 <= contrast < 1 decrease contrast and values > 1 increase contrast. Simple as that.
I implemented everything we talked about so far, so you can comment the pull request and see the result images: https://github.com/StefanStavrev/oiio/commit/9cbf5cb1c6705d31c6e7709df3cf320b79969574 I am aware this is beginning, but we got good start and working code. PS: Compile time increased significantly. Chris could it be because of the type specialization functions? Stefan
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