Hi all, http://bugzilla.gnome.org/show_bug.cgi?id=98326 This is a really easy one - there's a plug-in with source code for about 5 diufferent edge detection algorithms, they're all coded, all that needs to be done is to write some interface code to allow the user to choose which algo they want to use, and add the code to the existing edge detection plug-in. I'll leave this open to discussion - if someone else wants to do it, I'm more than happy to let them. If no-one's claimed it by Sunday, I'll do it. Cheers, Dave. -- David Neary, Lyon, France E-Mail: bolsh@xxxxxxxx