Digital BW, The Print

In a message dated 12/2/06 7:23:13 PM, claudej1@... writes:


> Has anyone found any differences between 2 prints from the same file
> printed with their favorite method as Grayscale vs. RGB??
> 

A fairer test is to do it the other way: convert a grayscale image to RGB,   
print both, and the results (bia my workflows at least) are identical. The RGB 
to gray conversion is making choices about channel mixing, that could be the 
cause of your differences. If you desaturate the image before conversion that 
should eliminate the issue, as the three channels will be identical. Going 
from AdobeRGB to Gray Gamma 2.2 is a proper conversion, as they share the same 
gamma.

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com



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