Corrected the formula, I must have made a mistake when writing it down manually at some point.
These values 0.2126729 0.7151521 0.0721750 are commonly used, and should be more accurate than 0.2126, 0.7152, 0.0722. Though you can close this PR again if you want :).
I haven't really read the whole documentation of NRD, but it seems to work in a specific color space (Rec.709). I suppose the documentation specifies that?
Corrected the formula, I must have made a mistake when writing it down manually at some point. These values
0.2126729 0.7151521 0.0721750
are commonly used, and should be more accurate than0.2126, 0.7152, 0.0722
. Though you can close this PR again if you want :).I haven't really read the whole documentation of NRD, but it seems to work in a specific color space (Rec.709). I suppose the documentation specifies that?