[Radiance-general] macbethcal?

[Lars O. Grobe]

Hi!

I have problems with macbethcal. I use it with a scanned photo of the 
macbeth-target, as I have some mappings and material definitions to do. But I 
don't reasonable results. If I use the "debug"-option (-d debug.pic), the 
right side of the square (the "calibrated" one ) is black, while I don't get 
warnings by macbethcal itself.

How much tolerance concerning the color fields of the macbeth chart does 
mabethcal provide, e.g how big is the region per color field the program uses 
for it's calculation? And is it ok to have variatons per field, does it 
calculate an average color per field?

Thank You, CU, Lars.