QTR-Quadtone RIP

.acv files are what you get when you save a curve shape in Photoshop.

In QTR, if you select 'Load Curve' against an ink & then click the Curve 
button you can type in the path to your .acv file. That curve will be 
then be used by qtr to control the densities of that channel.

There was a thread on this a few months ago when it was also pointed out 
that linearising such a set of curves could be problematic unless you 
really know what you are doing. Nonetheless, as Tyler pointed out, this 
does seem to be akin to the method of curve generation used in Bowhaus IJC.

regards
Howard

Steve and Ann Taylor wrote:
> OK, I'll bite, what are .acv files and how do you use them?
> Steve
> 
> On Tue, 22 May 2007 16:11:04 -0700, Tyler Boley <tyler@...>  
> wrote:
> 
>> hmm, cool, looks like the answer..
>> Tyler
>>
>> --- In QuadtoneRIP@yahoogroups.com, Howard Shaw <glassman@...> wrote:
>>>
>>> Walker
>>>
>>> Not sure if this is what you mean but I came up with a way of
>>> controlling each channel separately using .acv curves in qtr.
>>> See
>>> http://www.howardshaw.org/docs/k7-qtr/k7curves.htm
>>>
>>> Howard
> 
>