New Sigmoid Scene to Display mapping

[Tamas_Papp (Tamas K. Papp)]

@ariznaf

poor clipped light recovery when you need to reconstruct color

This is known, and work is in progress to address it. See

Guiding laplacians to restore clipped highlights

I have merged the multi-scale logic of the wavelets with the guided filter to guide laplacians in order to reconstruct clipped highlights. It’s kind of a turnducken of science. With little effort, reusing code from diffuse or sharpen and the logic from filmic reconstruction and the exposure-invariant guided filter, I got something working today to improve the noticeably shitty highlights reconstruction in darktable. The results are far from perfect as a stand-alone reconstruction, but it helps…

@s7habo

a new instance of the colour calibration module with, for example, a gradient mask

Thanks! I always forget how powerful that modules is (learnt a lot about it from your videos).