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Digital BW, The Print

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RE: [Digital BW] Create RGB ICC Issues

2014-03-13 by Mike Kirwan

Adobe (Chris Cox) went to great pains to out logic into Photoshop CS6 and later versions not to display or use ICC profiles that were not printer specific. Their thinking here was to eliminate user confusion. I did have quite a few email exchanges with Chris on this subject. There were a number of folks that had ABW grey scale profiles and they had the ability taken away to be able to print via Photoshop.

 

My solution(s) to apart from printing via QTR was to print via  QIMAGE which allows you to choose the profile of your heart’s desire.. Windows only – but the QIMAGE folks quote that it will run on MAC using Parallels and Fusion

 

MK

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Paul Roark
Sent: Wednesday, March 12, 2014 8:00 PM
To: DigitalB&WPrint
Subject: Re: [Digital BW] Create RGB ICC Issues

 

  

I have not used that approach lately, but just testing it this evening, with CS5 the approach seems to work where the file that the curve is put on is Adobe RGB (1998) and the printing profile in the driver is the same -- thus no changes are made in the file as it goes through the printer pipeline (I think).

 

Unfortunately, PS CC does not show Adobe RGB(1998) as an available printing profile in the 1400 printer driver.  I'm not sure there is a way around that problem.  Oddly enough, if the file that the curve is applied to is converted to sRGB in PS CC before the curve is applied, and the printer driver profile is Epson-sRGB, the ICC ends up printing a straight line Lab L. 

 

This approach may be a victim of the color management changes the various players are instituting. 

 

I generally print with QTR for all serious work.  The control is so much better.

 

Paul

www.PaulRoark.com 

 

On Wed, Mar 12, 2014 at 4:28 PM, <homershannon@gmail.com> wrote:

  

I have developed some curves that allow me to use the UT14 ink set with gloss and satin papers. The curves work well enough but I would like to run them through the QTR Create RGB ICC tool and simplify the process of using the curve by embedding them in an ICC. 

 

I followed the instructions in Paul Roark's document http://www.paulroark.com/BW-Info/Embedding_Photoshop_Curves_in_ICCs.pdf carefully. But, the ICCs I get consistently print images that are too dark and the coloration is not right. The link http://1drv.ms/1fUtOs1 will take you to a scan of ramps I have printed. The next to last on the bottom is the ramp from a curve that I want to embed. The last ramp is the print using the .ICC created with the curve and the LAB values for the ramp above. (Note that the ramps does not show LAB values, but I remeasured it again and used LAB for the create ICC tool.)

 

What am I missing that causes the resulting ICCs to be so far off their mark?

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