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Variable Contrast

Hi there,

I've been trying to use LibRaw on a project, but keep running into an issue where the output images don't look "contrasty" enough -- they differ substantially in contrast from both the embedded previews in the JPEG, as well as ACR and FastRawViewer (which I understood uses libraw internally?)

Looking in FRV, there's an option called "contrast curve type", which is set to "variable contrast" -- I think this is what I'm missing.

How do I invoke libraw such that it mirrors the "variable contrast" setting, so that my images look right?