Digital BW, The Print

I think these are just the various densities then - red channel, green
channel and blue channel then visual.  I do not know how to interpret this
colour information but I am sure someone else here does.


> From: Howard Shaw <glassman@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Tue, 18 Oct 2005 12:25:52 +0100
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: RE: [Digital BW] ICC v. Transfer Function in Epson driver
> 
> Steve Kale wrote,
>> 
>> Hmm.  RGB is not a colour space per se.  A set of RGB numbers
>> don't mean anything without a colour space attached eg Adobe
>> RGB.  I think (getting out of my depth here as I am not
>> familiar with the X-rite) you need to find the context in
>> which those numbers sit.
>> 
> 
> The "RGB" numbers are not like the 0-255 you would get in Photoshop but on
> the sme scale as the density readings. For example a dmax Vis reading of
> 1.68 might read R1.70 G1.65 B1.63 if it was a warm black.
> 
> I don't see a model in Bruce Lindbloom's list that would seem to be
> appropriate.
> 
> Howard