[Radiance-general] Macbethcal Reflectances

[Marcus Jacobs]

Dear Group,

I am using macbethcal/pcomb to determine the color and reflectance of 
various scanned paint swatches. One thing that has come to my attention is 
that the overall reflectance seems out of range. For example, a creamy white 
color once calibrated has an overall reflectance (determined by ximage and 
grey(r,g,b)) equal to .93. From RWR I think it was mentioned that a 
reflectance of greater than 80% may be unrealistic. Although I have had some 
colors out of gamut, particularly Cyan,(noticed by looking at the debug.pic 
from macbethcal), there seems to have been no apparent issues with the 
white, neutral 8, neutral 6.5, neutral 5, neutral 3.5, black (I am assuming 
that these patches are used to calibrate the reflectance) during the 
generation of the calibration file. Has anyone else encountered this issue?

Regards,

Marcus