Dear group,

I run into small problem with rgb space conversion. Suppose I have RAW
scan of negative. Scanner is very simple for colorimetric
characterization. Now in Photoshop I assigning Ekta Space as a working
space and do negative inversion: curve+levels. Now the result is here
(image converted to sRGB, Adobe CMM, relative, no black point):

http://main.pam.szczecin.pl/~piotrlg/t/fshop_ekta_srgb.jpg

This is very hue sensitive picture. Now I understand that Photoshop
did this conversion for me:

1) RAW RGB
2) XYZ(EktaS chromacities)
3) Chromatic adaptation
4) RGB (sRGB inverse matrix)

I understand I can do this with LCMS using input space as Ekta and
output as sRGB. Am I right? Unfortunately saturation and hue is
different:

http://main.pam.szczecin.pl/~piotrlg/t/lcms-ekta-srgb.jpg

Please tell me what I missing here because I must use LCMS?

Cheers -- Jack,



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