>
>
> If RawTherapee is really using the same matrices, it would be interesting
> to find out what's being done differently (or additionally)...
>
> RawTherapee uses dcraw for import. I took the  A7RIII testchart raw and
ran it through  'dcraw -v -w -o 1 -T DSC00157.ARW', then imported the .ARW
and the TIFF created by dcraw into DarkTable. The TIFF lokes more natural
to me. Especially the skin color of the guy on the right looks somehow a
bit yellowish / ill in the .ARW but more natural in the TIFF from dcraw.
BUT: When importing the TIFF no base curve is applied. When I disable base
curve on the .ARW and instead use levels and tone curve manually i can get
a look that is closer to the TIFF (i.e. the dcraw variant).
Maybe it comes down to different default settings in DarkTable importing
vs. dcraw. At some point I'd like to double-check that the matrix
calculations done by DT are indeed carried out as intended, but so far I
didn't find a way to artificially create a raw-file for this purpose.

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