Color/Luminosity separation

Started 3 months ago | Discussions thread
Pictus
Pictus Veteran Member • Posts: 6,543
Re: Color/Luminosity separation

Tom Axford wrote:

Thanks for posting that. It is not the same as what GIMP does, but similar in that it certainly doesn't preserve the colours accurately if the luminosity is higher than can be represented in RGB.

Of course, this example is very extreme, but even much more modest operations on the luminosity layer can result in colour changes. The changes do not normally affect the whole image, but only those areas where the colours are highly saturated. Highly saturated blues are the most susceptible.

You are welcome, it is an interesting test to check the LAB Color Mode behavior.

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