Digital BW, The Print

On 03/12/2005 05:02:15, Roy Harrington wrote:
> Which leads to the question whether there are many who would use an rgb
> version
> of QTR-Create-ICC ?

Wouldn't anyone with the measuring equipment already have the software for
creating rgb profiles?

Or do you mean a greyscale rgb target measurement chart with related
reference file?

Bill Atkinson's latest release includes a number of greyscale charts
including one for the Eye1. Unfortunately, I cannot get the Eye1 to read it
in strip mode. Anyone else tried/succeeded?

TonyR

Hi Tony,

This is from BA FAQ document:
...
What are the RGB 256 Grays and RGB 1024 Grays targets for?
These are not profile making targets.  
Like the blocks of gray in some of the targets, they are useful for
visual and numeric evaluation of a printer or profile's gray balance
...
Does it answer your question?


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tony Riley"
<listsubs@a...> wrote:
>
> On 03/12/2005 05:02:15, Roy Harrington wrote:
> > Which leads to the question whether there are many who would use
an rgb
> > version
> > of QTR-Create-ICC ?
> 
> Wouldn't anyone with the measuring equipment already have the
software for
> creating rgb profiles?
> 
> Or do you mean a greyscale rgb target measurement chart with related
> reference file?
> 
> Bill Atkinson's latest release includes a number of greyscale charts
> including one for the Eye1. Unfortunately, I cannot get the Eye1 to
read it

> in strip mode. Anyone else tried/succeeded?
> 
> TonyR
>

Tony, can you tell me where you found the new Bill Atkinson charts?
Thanks,
Tyler

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tony Riley"
<listsubs@a...> wrote:
>
> On 03/12/2005 05:02:15, Roy Harrington wrote:
> > Which leads to the question whether there are many who would use
an rgb
> > version
> > of QTR-Create-ICC ?
> 
> Wouldn't anyone with the measuring equipment already have the
software for
> creating rgb profiles?
> 
> Or do you mean a greyscale rgb target measurement chart with related
> reference file?
> 
> Bill Atkinson's latest release includes a number of greyscale charts
> including one for the Eye1. Unfortunately, I cannot get the Eye1 to
read it

> in strip mode. Anyone else tried/succeeded?
> 
> TonyR
>

Here ya go.

http://homepage.mac.com/billatkinson/FileSharing2.html

Lou

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tyler Boley" 
<tyler@t...> wrote:

>
> Tony, can you tell me where you found the new Bill Atkinson charts?
> Thanks,
> Tyler

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tony Riley" <listsubs@a...> 
wrote:
>
> On 03/12/2005 05:02:15, Roy Harrington wrote:
> > Which leads to the question whether there are many who would use an rgb
> > version
> > of QTR-Create-ICC ?
> 
> Wouldn't anyone with the measuring equipment already have the software for
> creating rgb profiles?
> 
> Or do you mean a greyscale rgb target measurement chart with related
> reference file?
> 
> Bill Atkinson's latest release includes a number of greyscale charts
> including one for the Eye1. Unfortunately, I cannot get the Eye1 to read it
> in strip mode. Anyone else tried/succeeded?
> 
> TonyR
>

Well the i1Match software can sort of work with a gray scale target.  In fact a while ago
I had a procedure to soft-proof this way.  But if you looked at the forward curves
generated they were quite bizarre.  It looked like an attempt to put wildly steep
curves to make more color where there wasn't any.

The QTR-Create-ICC tool is specifically designed for grayscale charts.  Currently
it outputs a gray ICC profile but if I output the same data but in RGB format where
R=G=B I think Qimage should accept it.

Roy