[Gimp-user] (no subject)
Wednesday, April 10, 2002 Dear Sir/Madam: ContestFinder.com has created a new service that can prove invaluable to organizers of contests and competitions on the Web. In essence we use a huge database and state-of-the-art programming to match potential entrants with events according to the interests and requirements of each. Participation is without charge. For detailed information about how we can help your efforts achieve wider and more precise exposure, please visit us on the web at www.contestfinder.com or give us a call Tall FREE: 1-866-840-5385 . Yours truly, Slava Levin, President For the team at ContestFinder.com ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
[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
Re: [Gimp-user] Separating objects from the background
Nikolai Vladychevski wrote: if I remove the purple color, there is no way to remove it completely, some of it will stay... This simple purple-orange is easy to divide. You can use image/filters/colors/color to transparence. Regards Hago ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Re: Separating objects from the background
On Wed, Apr 10, 2002 at 04:03:45PM -0500, Walker, Sam wrote: This is a tough task that sounds simple. I would use Fuzzy Select tool on the background, playing with the threshold until the selection looked good. Then invert the selection, and use image/Select/Shrink to unselect any extra background artifacts around the edges. You can try the feather and antialias options with the select to blur the edges of your selection. You might try the edge detect filters. Then using the Image/Colors/Levels tools to isolate the strong edges. Then use the resulting image with the Fuzzy Select or as a mask/channel. Either way some hand editting is involved. I doubt there is a quick and easy technique. If there is, I'd sure be interested to know how. As would I. We deal with pictures of glass art. We make the background black. The clear glass on the outside of curves is hard to preserve while completely eliminating the background. Maybe I haven't played with the edge detect filters enough ... -- [EMAIL PROTECTED] ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
[Gimp-user] tif2xcf
Hi gimpers, I found this plugin on the web tif2xcf http://www.vierpi.de/panotools-gimp.html and i am having trouble installing it i have had a go at the instructions given on the website Installation Download tif2xcf and copy it to your plugins directory with gimp-config --install-bin tif2xcf or to your system plugin directory with gimp-config --install-admin-bin tif2xcf and restart gimp. Note: If the perl binary is not in /usr/bin, then change the first line of tif2xcf to your path. You need gimp-perl. Check if you have the appropiate modules by calling tif2xcf in the shell. If a new window comes up then you have all you need. I am running a stock MDK8.0 system and perl is in /usr/bin but i haven't the foggiest where to run these comands. any help would be appreciated. cheers jason ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
