The real WB is not Temperature/Tint, but WB coefficients for diagonal color adaptation matrix.
So, real coefficients are transformed to temperature/tint to dispay, than back. Precision is limited, but always within tolerance limits.
Please note, that Temperature/Tint is useless if different color profile is used. FRV's profiles are very close to Adobe's (last versions), but Adobes changes from version to version.
The real WB is not
The real WB is not Temperature/Tint, but WB coefficients for diagonal color adaptation matrix.
So, real coefficients are transformed to temperature/tint to dispay, than back. Precision is limited, but always within tolerance limits.
Please note, that Temperature/Tint is useless if different color profile is used. FRV's profiles are very close to Adobe's (last versions), but Adobes changes from version to version.
--
Alex Tutubalin/FastRawViewer team