Alexey Gribunin wrote:
spec2cie.exe -i ref/D50_0.0.sp -f -o 1931_2 Test.ti3 Test_UVCut.ti3 #command 1In Test_UVCut.ti3 I have both spectral and LAB values. I think, they should match but they don't!Spectral values seems to be FWA compensated correctly. After converting spectrals to Lab with the following command: spec2cie.exe -i D50 -o 1931_2 -n Test_UVCut.ti3 Test_UVCut_CIE.ti3
You aren't doing the same thing though. The CIE values from the first are with a D50_0.0.sp illumination (UV and some blue filtered out). For the second, you are applying a D50 illumination, and the extra blue in it results in different values. If you do a: spec2cie.exe -i ref/D50_0.0.sp -o 1931_2 -n Test_UVCut.ti3 Test_UVCut_CIE.ti3 you should get the same values (although scale by 100 bug is an issue!). Graeme Gill.