QTR-Quadtone RIP

David

The curve must be a single channel curve (i.e. from a grayscale file or
single channel). In my experience the impact of an acv curve when applied to
a QTR curve makes most sense when the display of the acv curve in PS is set
up so that 0 density is on the bottom left of the PS curve display and 255
(max) density is on the top right. That way lowering the acv curve has the
same effect on the QTR curve.

Tom Moore

> -----Original Message-----
> From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com] On
> Behalf Of davidkeasey
> Sent: Thursday, November 03, 2005 8:05 AM
> To: QuadtoneRIP@yahoogroups.com
> Subject: [QuadtoneRIP] Dumb Newbie question.... importing acv curves from
> photoshop...
> 
> The documentation indicates that I can use an acv curve from
> Photoshop, but I haven't a good idea how to do this... and the
> documentation is simply not at all clear. Do I just build an arbitrary
> grayscale (i.e. single-channel) curve, then save it and import the
> file?  Or do I use a curve with 4 channels (e.g. quadtone curveset)?
> 
> I'm just getting started with B/W printing, and QTR seems so far to
> work much much better than the kluged ultratone curves that would be
> used under Photoshop.
> 
> Thanks in advance for any help.
> DRK