Severe contrast enhancements: on 45% rule — and cats

Started Jun 28, 2013 | Discussions thread
OP ilza Regular Member • Posts: 107
Re: LAB mode does not preserve the colours

sjgcit wrote:

The L in LAB is not a linear mix of RGB. It's considerably more complex.

True, but irrelevant in the context of my question (keeping the colors while changing the contrast a lot).  Since L is a function of Y, applying a certain curve to L is fully equivalent to applying (another) curve to Y.

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