Cruz, John J writes: > 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
but the problem is I have not object yet to produce its border. The oval was just an example, I have a lot of photos of products here and all have background that I want to remove cleanly and fast, without doing pixel-by-pixel art ... > > -----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
