Digital BW, The Print

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.


> From: Howard Shaw <glassman@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Tue, 18 Oct 2005 11:54:36 +0100
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: RE: [Digital BW] ICC v. Transfer Function in Epson driver
> 
> Steve Kale wrote,
>> 
>> From Roy's post announcing the new version that I mentioned
>> in an earlier post (formatting distorted in post):
>> 
>> Supports a more general data input file. Anything
>> columnar,
>> looks for column headings of:
>> 
>> GRAY
>> L, LAB, LAB_L, A, LAB_A, B, LAB_B
>> D, DENSITY, V, VISUAL
>> 
>> 
> The X-rite 810 produces two types of data - density readings (called "Vis")
> and "RGB" readings for colour information. I understand how to use the
> Density readings in the text file for Create-ICC but I'm not sure how to
> convert the RGB readings (which are on the same density scale as the Vis
> readings) to Lab_A & Lab_B. Is this possible?
> 
> Thanks
> Howard