Have you tried installing a border around the object of a color of your choosing and making certain that the border is up-front?
jjc -----Original Message----- From: Nikolai Vladychevski [mailto:[EMAIL PROTECTED]] Sent: Wednesday, April 10, 2002 12:15 PM To: [EMAIL PROTECTED] Subject: [Gimp-user] Separating objects from the background Hello, I will have to redesign a site (shopping site) with white background color and since the actual site uses photos of the product with the some backgrounds (black, gray ... all monotone colors) I will have to remove it and I don't know how to do this properly. Lets say I have an example like this, an yellow oval shape over purple background: http://www.isl.net.mx/paso1.gif This object has an antialiased border to integrate smootely with the background. If I remove the background using selection tools in Gimp I will get a result like this: http://www.isl.net.mx/paso2.gif Wich is the result of antialiasing effect, and if I remove the purple color, there is no way to remove it completely, some of it will stay: http://www.isl.net.mx/paso3.gif I investigated and found that antialising effect changes Alpha values of the pixels, so if I place any background backward, the object will adapt to the background smoothely. Unfortunately, I already have background on my photos and the object together in the image and I need to do the reverse, I have to separate the object from the background, so I need to do something with the alpha values of the border pixels, right now they are equal to 255: http://www.isl.net.mx/paso4.gif How can I do with gimp to remove the purple color fully and convert the borders where the object is merging with the background into pixels that has Alpha values over yellow color instead of plain orange color ? Thanks in advance. Nikolai _______________________________________________ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user _______________________________________________ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
