I’ve been playing again with different demosaicing algorithms with both DT and RT.
In this case I want to show three results I’ve obtained with DT 3.2.1 and why I think it would be important to have one more demosaic algo in RT.
At low ISO the results are all quite good, even a 100% zoom, for VNG, Mark 3pass and for Frequency Domain Chroma.
The story is entirely different at high ISO (>3200) because the Markesteijn produces horrible artifacts such as small vertical bars and very high color noise.
VNG produces a lot of color noise, but at least it’s more uniform.
The best results are, by far, obtained with the FDC: chrominance noise is much much lower and no artifacts. The only downside of FDC is a small desaturation of very small details that is invisible when slightly unzoomed.
Of course I tried to increase Color Smoothing with Mark3pass, it’s a bit better, but not that much.
What I like of the FDC demosaicing is that the pattern you see is very very similar to the monochrome output with no demosaic at all that, at least for me, is very film-like.
What do you think?