[Gimp-user] newbie trouble needs to fit canvas
thanks for all the replies... i think i will make the background transparent that seems to fit what i want to do. but thanks all off you for your input regards Morten -- Madhatter (via gimpusers.com) ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
[Gimp-user] newbie trouble needs to fit canvas
just figured out a problem with changing the color to transparent... it is a pencil drawing so the image (which is a parrot so not rectangular) is the same color as the background. i think i will change the color off the parrot slightly and then make background transparrent regards Morten -- Madhatter (via gimpusers.com) ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
[Gimp-user] Tips for digitising/tracing image with GIMP?
Hello, I am considering using GIMP 2.8 on my system with Mac OS X 10.6.8 to do the following: (1) Digitise a photograph by tracing over parts of it with lines. The photo could be, say, the roots of a tree. The lines would be colour coded depending on the state of what they are over. I.e. roots in one state gets traced with one colour, while roots in another state would get a different colour. In the end I might end up with a bunch of lines, with the different colours of lines organised in different layers. (2) Calculate the relative proportion of lines of a certain colour to the total length of all lines. To do the above, I am wondering if GIMP has the ability to calculate the length of lines drawn over an image (in, say, number of pixels). This way, I can obtain the total pixel length all lines put together, and the total pixel length of, say, just the blue lines. Do you think GIMP is suitable for this kind of image analyses? Or should I use a vector based program like Inkscape? Thanks! -- View this message in context: http://gimp.1065349.n5.nabble.com/Tips-for-digitising-tracing-image-with-GIMP-tp33261.html Sent from the Gimp User mailing list archive at Nabble.com. ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Tips for digitising/tracing image with GIMP?
On Mon, 2012-06-25 at 14:53 -0700, avamk wrote: Do you think GIMP is suitable for this kind of image analyses? Or should I use a vector based program like Inkscape? In GIMP you will need a data structure to track the traced lines, rather than having a plugin just draw them on the canvas. You'll probably find it a lot easier with Inkscape, or with potrace on the command-line (especially under Linux) because the SVG output has XML elements you can traverse. But you might alo be able to do the tracing to paths in gimp and then iterate over the paths using the gimp-get-vector-points and friends (see help-procedure browser in gimp and search for vector) Liam -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/ Ankh: irc.sorcery.net irc.gnome.org freenode/#xml ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Tips for digitising/tracing image with GIMP?
On Mon, Jun 25, 2012 at 7:07 PM, Liam R E Quin l...@holoweb.net wrote: Do you think GIMP is suitable for this kind of image analyses? Or should I use a vector based program like Inkscape? [...]But you might alo be able to do the tracing to paths in gimp and then iterate over the paths using the gimp-get-vector-points and friends (see help-procedure browser in gimp and search for vector) A simple starting point: http://registry.gimp.org/node/17235 I'd go with a vector editor rather than use paths in GIMP though. Path tool in GIMP is nice, path tool in Inkscape is nicer ;) Chris ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
