something like this… I will test on Ricoh raw, but it seems DxO code might not be compatible w/ Look table (that clamps everything to greyscale )? pure speculation and nothing more at this point
Thank you for your answer, I was afraid of using profiles from another cameras I thought that it might looks not good but actually as you advise I can see that it can be used like this.
However, this does not change the fact that this is a problem in DxO that is not present in other raw editors.
no big deal, I already wrote a Matlab script ( you can do the same manually in a text editor or in excel or in whatever - it is a very simple fix ) to deal with the matter in semi-automated manner… the issue it seems is between how Adobe creates profiles and puts numeric data in HSV “look” lut table for hues math-rounding / bounds wise and how DxO deals w/ that data in there ( resulting in see-saw tone curve )…
I quickly tested a fixed DCP profile vs original DCP profile in ACR yesterday and visually they are identical ( and surely no artefacts in ACR for original DCP as in DxO PL ) - I will check output from ACR bit by bit after work to see that it is not only my eyes ( because there might be something that is visually too small to notice ) and post fixed profiles…
I wonder did you see my query to you regarding highlight clipping with DCP profiles here: LumaRiver Profile Designer v2 is out ... after a long while
I would appreciate your viewpoint, particularly if there is something I can do to alter the offending profiles so that they work in Photolab.
Thanks in advance.
Similar effects occur with monochrome DCP profiles from Adobe for the Panasonic GX9. Initially, when DCP support was introduced in PL, it worked well. If I remember correctly, some version of PL 6.x started to “spoil” them giving effects similar to what pnajbar shown. DCP profiles for color images still work very well and give effects very similar to the images generated by the camera. Unfortunately, “black and white” DCP profiles are no longer useful. From my point of view it is a minor problem, but indeed the problem occurs.