Not sure if this is what you really want.
But the PS .acv's are limited to 14 points and only 8-bit accuracy.
If you use the QTR driver curves (explicit x,y coordinates) you can have
many more points and 16-bit accuracy. No visual curve display though.
Roy
On Mon, Aug 15, 2016 at 4:21 AM, stefanchristiansen@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
I still haven't found a better tool than PS to edit the .acv curves I use in QTR.
I hate those tiny curve windows and inaccurate graphs.My profiles (for negatives) use only four channels and one shade of ink at a time, and one same curve driving those channels (I'm simplifying a bit). No partition, no crossover points.I don't use a densitometer, don't linearize or anything like that. I look at my carbon print, I modify the PS curve and reprint...I'm rather happy with it but would like to have a better control on either fine tuning the curves or my profiles.No way I will edit 256x4 numbers in a .quad files, but I'm OK with manually editing 21 values.For the moment I put anchoring points on the PS curves and move those I want to modify.With the eyedropper tool (16-bit) I check the values on the stepwedge that is opened in PS. 5% is now 642, etc…Please, would anyone think of a better way to fine tune .acv curves (on mac)?You understand I'm not familiar with linearization, but could the Drop-Quad-Profile script help me?What kind of .txt file should I use? Would it be possible to convert PS's eyedropper readings into appropriate values? For exemple, I would like my 5% patch to have a 720 value instead of 642. Is this something I could use somehow with the droplet?Thank you very much for your attention and help.Best regards,Stefan Christiansen