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QuadToneRIP Create ICC with ColorVision Spectrometer and Curve Making

QuadToneRIP Create ICC with ColorVision Spectrometer and Curve Making

2007-03-13 by john dean

David or Dave,

I am not able to correctly read the greyscale target supplied with QTR
with the ColorVision spectro because of the targets small size
designed for Eye One.

I assume I can double the size of this target (without any color
management added) to print out and get accurate readings. Am I
correct? How would you suggest I handle the output resolution which is
set to 360 dpi?

john

Re: [colorvision_group] QuadToneRIP Create ICC with ColorVision Spectrometer and Curve Making

2007-03-13 by David Miller

>David or Dave,
>
>I am not able to correctly read the greyscale target supplied with QTR
>with the ColorVision spectro because of the targets small size
>designed for Eye One.
>
>I assume I can double the size of this target (without any color
>management added) to print out and get accurate readings. Am I
>correct? How would you suggest I handle the output resolution which is
>set to 360 dpi?
>

Just print it as large as you want. You're going to be printing this
through QTR, don't forget; not through PFP; you need to open it up and
print it according to the docs that come with QTR. The only thing you're
doing with PFP is reading the step wedges and exporting them as a file
you can directly put through QTR-Create-ICC.

(The file you'll want to print is "Step-21-gray.tif" - don't use the 51
step, I don't recall testing it with anything other than the 21 steps).



-- 
David Miller
Senior Software Developer, Digital Color Solutions
ColorVision

Re: QuadToneRIP Create ICC with ColorVision Spectrometer and Curve Making

2007-03-13 by John Vitollo

--- In colorvision_group@yahoogroups.com, David Miller <dm2363@...> wrote:
>
> Just print it as large as you want. You're going to be printing this
> through QTR, don't forget; not through PFP; you need to open it up and
> print it according to the docs that come with QTR. The only thing you're
> doing with PFP is reading the step wedges and exporting them as a file
> you can directly put through QTR-Create-ICC.
> 
> (The file you'll want to print is "Step-21-gray.tif" - don't use the 51
> step, I don't recall testing it with anything other than the 21 steps).

Roy Harrington recommends using the "Step-21x4-random.tif" as it has an error correction 
built-in.

Re: [colorvision_group] QuadToneRIP Create ICC with ColorVision Spectrometer and Curve Making

2007-03-13 by CDTobie@aol.com


In a message dated 3/13/07 11:01:44 AM, deanwork2003@... writes:


I am not able to correctly read the greyscale target supplied with QTR
with the ColorVision spectro because of the targets small size
designed for Eye One.

I assume I can double the size of this target (without any color
management added) to print out and get accurate readings. Am I
correct? How would you suggest I handle the output resolution which is
set to 360 dpi?


Resolution won't affect color in flat patches, so adjust as desired to make reading convenient.

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



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