z.lib is using the transfer by Rec.1886 when transfer 601/709/2020(_10/_12) is used.
HDRTools is using the same transfer by Rec.1886 when Color=2 (in XYZ) is used.
Edit:
Quote:
Originally Posted by Dogway
Quote:
z.lib, dither and internal functions have visible identical results
|
My eyes might deceive me but my solution also looks identical.
|
Right, your solution also looks identical (colors, brightness) but there is some shift.