Man, you are all masters of Photoshop
I am still struggling with The Gimp... and seeing the stuff you guys are using makes me jealous
Cutting out cliffs like that in 2 minutes and brilliantly at that... ack!
Man, you are all masters of Photoshop
I am still struggling with The Gimp... and seeing the stuff you guys are using makes me jealous
Cutting out cliffs like that in 2 minutes and brilliantly at that... ack!
Check out my City Designer 3 tutorials. See my fantasy (city) maps in this thread.
Gandwarf has fallen into shadow...
Using channel separations to set up masks works almost exactly the same way in Gimp.
Speaking of which, I found a handy script Lasm's Channel Extract that will extract any/all of the channels (RGBA, HSV, CYMK, LAB) into separate B&W layers. I find it handy to quickly eyeball the best channel for separation. Here is a mosaic of the channels:
-Rob A>
My tutorials: Using GIMP to Create an Artistic Regional Map ~ All My Tutorials
My GIMP Scripts: Rotating Brush ~ Gradient from Image ~ Mosaic Tile Helper ~ Random Density Map ~ Subterranean Map Prettier ~ Tapered Stroke Path ~ Random Rotate Floating Layer ~ Batch Image to Pattern ~ Better Seamless Tiles ~ Tile Shuffle ~ Scale Pattern ~ Grid of Guides ~ Fractalize path ~ Label Points
My Maps: Finished Maps ~ Challenge Entries ~ My Portfolio: www.cartocopia.com
Yup, I use channel separation all the time to generate alpha masks and I was going to point out CMYK too as alternatives to get the best contrast so kudos again to Rob for pointing out a nifty way to see them all at once. After a while you just instinctively know whats going to be the best based on the colors in an image tho.
Another tip I could just shove in at the last minute which you might have mentioned cos I didn't read it all that thoroughly.... When you have your greyscale image from the separation, I used to use brightness and contrast to do the black and white range expansion but I find now that I get a dropper out and check the brightness just at the point where I want to separate it and then use a color curve and draw a box filter right at that point. Save faffing about trying to get the value right.
I'll dish some rep in a mo...