>Thanks for your reply and advice. >Maybe it's a personal preference but the guy who was replying to my >thread at fsdeveloper.com suggested that I export the BLEND mask >(layer where everything the user doesn't want to show painted with a >25% BLACK brush so the edges are a greyscale and blend nicely) as a >8bt 256 grayscale TIFF image and the water mask which is painted with >a 100% BLACK brush as a 1 bit 2 color (black and white) TIFF. >I guess they both can be as small as possible although he also reckons >the 'compile file' (which uses the original satellite image and the >water and blend mask image files) ends up smaller too. Once again just >a preference of his to have all files as small as possible. >I have in the past exported the mask/layer as a 24 bit BMP file and it >all worked ok. Of course the BMP files are much larger.
Well, heed your experts advice. A couple of points, that you might already know. The 'paint tools' have their own opacity setting. No need for a 25% brush. The Paint Tool introduces anti-aliasing at the edge. For the 1 bit indexed image the anti-aliasing is 'lost'. Otherwise for 'hard' edges use the pencil tool. Exporting as a tiff is not a problem, Use Mode -> Greyscale for 8 bit and remove any alpha channel, then Mode -> Indexed -> black and white (1 bit) for that mask. rich: www.gimp-forum.net Attachments: * http://www.gimpusers.com/system/attachments/697/original/tools.jpg -- rich404 (via www.gimpusers.com/forums) _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
