QTR-Quadtone RIP

On 06/08/2012 06:47 AM, Roy Harrington wrote:

> Like Greg said, the linearization numbers are always assumed evenly spaced
> for however number there are. The tricky part comes when you make the
> targets.

Thank you for the reply, I have made a 34 step target.

Something related: I use ACV curves to make grey ink partitions \ufffd la 
Paul Roark for a HP K5400 office inkjet loaded with grey inks. In 
Photoshop of course and print the trials directly from Photoshop through 
the HP driver. When finished I embed the curves in an RGB profile with 
the QTR tool for that. That works when there is also a linearisation 
curve added at the same time. But I rather like to add the linearisation 
curve later on as I normally print from Qimage and think I should create 
the linearisation curve based on printing from Qimage with the 
unlinearised RGB profile and then linearise that profile with a target 
output from Qimage. So I think I should embed an ineffective 
"linearisation" curve instead first and wonder how simple the data file 
for that could be. ACV curves do not work in Qimage.


-- 
Met vriendelijke groet, Ernst

Dinkla Grafische Techniek
Quad, pi\ufffdzografie, gicl\ufffde
www.pigment-print.com