Re: [Gimp-user] how to invert greyscale values only...

2010-02-04 Thread Cédric Gémy
"Duplicate layer, invert bottom layer and cut all blacks and whites out of (transparent) top layer (of course, if there's a range of greys it gets more complicated)." it's evident that this is the problem : i don't know about Rich's photo but the sample i use here have various flavors of blacks'

Re: [Gimp-user] how to invert greyscale values only...

2010-02-04 Thread yahvuu
hi, Rich Evans wrote: > [..] Is there a > technique or tool to invert any part of the image that is only a shade of > grey? > i.e. invert pixeils with a saturation of ~0 (if that is how you say > it). The on-board tools are just fine for this. "Do something to some pixels (here: invert) and lea

Re: [Gimp-user] editing a grid of multiple files

2010-02-04 Thread saulgoode
Quoting Jim Brooks : > I have several image files. > These are adjacent NxN tiles. > > Is there a way in GIMP to > - load all of them into a grid > - modify them with GIMP > - then save them back as separate files again? If you were to install the following two Scripts, your task might be simpl

[Gimp-user] Asking for Advice

2010-02-04 Thread Tommy
Gimp User community hello, I have been using Gimp for a year or two and i love it. I will say right off I am not a pro by far :) Actually I have been doing alot of tutorials from this site. To which has really taught me alot!. Thank you for all your work. However, I have found a really keen int

Re: [Gimp-user] how to invert greyscale values only...

2010-02-04 Thread Rich Evans
That's it! Perfect. Thanks Peter. (and my printer's black ink cartridge thanks you - heh heh) Not only is this an exact solution for my goal, but you have also taught me how to think more properly about the nature of the problem from the perspective of GIMP as a tool whereas I was coming at it f