QTR-Quadtone RIP

On 06/07/2012 12:43 PM, keith wrote:
> Has anyone any clues as to extracting the linearising curve from a QTR
> icc profile and getting the data into a Photoshop curve (an acv file)
>
> Reason for this is that the Canon large format printers when in B&W
> printing mode can load an ACV file for greyscale linearisation
>
> Arcane solutions using excel are just fine since this is a just once per
> paper job... ;-)


What about creating a 16 step greyscale target, extracting from the 
measurements file the L numbers, extracting the L numbers from the QTR 
Linearise file and setting 16 point ACV curves in Photoshop Lab mode 
then convert to RGB mode if that is needed for the driver?

You might be able to use the information directly in a PS ACV file made 
readable but I am not qualified for that work.
They probably are: http://www.clearps.com/photoshop-forum/index.php/t/20655/


-- 
Met vriendelijke groet, Ernst

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