Why does increasing contrast also increase saturation?

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emma_2021
emma_2021 Regular Member • Posts: 169
Why does increasing contrast also increase saturation?
1

If you open an image in Lightroom (or some other software) and increase the Contrast slider, or create an S curve, the saturation of the image will usually increase, sometimes a lot.

Why is this? What is the technical reason?

I have googled this question, and it's been asked a few times before, on various sites, but I can't find a satisfactory answer.

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