![]() Much here for the moment, but I thought I'd note it as an issue. Unfortunately I'm not having much time for coding right now so I cannot contribute Guessing it would only make a difference with extreme exposure changes, and if youĭo that there will likely be other color issues which is larger (ie underexposed sensor ![]() I don't think one need to worry about the two-step application, ie huesatdeltas firstĪnd looktable after exposure, doing everything where it is now should be okay, I'm I guess it's a bit of a problem that Adobe has put some much color rendering into theįormat, adopting DNG forces Abobe's view of color into your software, no wonder the Tables to match RT/dcraw matrixing, or have some extra matrixing step to convert RT/dcraw If one could somehow find out the difference I guess one could pre-process the DCP I'm not excluding the possibility thatĪdobe's own DNG render code could be broken. The Adobe Standard, but not for the Neutral. The RT/dcraw matrixing outputsĪ fairly neutral-looking file before the tables are applied, which seem to work for I did some probing into the DNG render code and noticed that the pre-processed inputįor the neutral profile looks off in color, but is brought back to neutral when going Profiles work better without the forwardmatrix than others. The tested "Neutral" profile has the exact same tags as the "Adobe Standard", and theįorwardmatrix has existed since 2008 or so I think. The RGB Prophoto conversion DNG SDK makes is not the same conversion asĭCRAW makes, and this makes it incompatible with the DCP huesat tables. Green-image, then they do a XYZ D50 to RGB Prophoto conversion (which includes theįorward matrix as one of the matrices used), and then they apply the huesatmap and The image without any color scaling or matrix conversion at all, so you get the typical Looking in the DNG SDK code it seems like what they do is that they first demosaic To DNG spec which make the look-table go wrong. Not at all neutral, while the result with Abobe's own DNG converter is a neutral rendering.Īs far as my debugging goes the reason is that color conversion is not made according ![]() I have noted when applying a "Neutral" DCP profile rather than the typical "Adobe Standard"įrom Adobe Camera Raw (for a D7000 in this case) the resulting color is greenish and ![]() Should be used when available in the conversion. To make a correct conversion according to the DNG specification the forward matrix DCP profiles have color matrices and forward matrices. ![]()
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