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Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

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Re: Gimp curve development - Roy

2003-02-05 by Charles Bandes <byronbulb@yahoo.com>

All I can say is "wow this is hard"

I have been trying to modify the VM curves for my 1280 without too
much success so far. The standard curve Roy made works ok but the
darker midtones get all bunched up without much separation from 75-55%
I tried playing with the magenta curve to see if I could increase the
separation b adding a little of the toner to those darker values, but
I just made things worse. Basically I just don't have enough
understanding to fiddle with the curves yet with anything beyond
"error and error" results :)

Anyway, yes, Roy, Paul, Tyler, whomever, please educate us! :) I have
a feeling that with suitable curve development the gimp-based
quad/hextone systems might become _the_ systems, it's so exciting!!

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Kevin Gulstene
<kevin@d...> wrote:
> Do you have a systematic method you used when developing the curves 
> used to generate the  "quadtone curve description files" or did you use 
> your own experience and experiment.
> 
> I am interested in modifying some of the curves you provided and it is 
> unclear to how best to proceed.  Trial and error seems like it would 
> take a lot of experimentation.
> 
> --
> Kevin Gulstene

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