Re: [Gimp-user] Seeking better green screen method

2012-01-18 Thread Liam R E Quin
On Tue, 2012-01-17 at 15:17 -0500, Jay Smith wrote: We have tried scanning on many different non-black background colors and surfaces, but there are always some extreme-edge color artifacts remaining ... leaving a sort of halo effect around the stamp object. I've found that scanning object

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Jay Smith
On 01/17/2012 03:29 PM, Chris Mohler wrote: On Tue, Jan 17, 2012 at 2:17 PM, Jay Smithj...@jaysmith.com wrote: Goal: To be able to select the background (for change to 100% black) without any leakage of the selection onto the stamp objects AND without ANY non-black color artifacts remaining

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Liam R E Quin
[resending from the right account, sorry!] On Tue, 2012-01-17 at 15:17 -0500, Jay Smith wrote: We have tried scanning on many different non-black background colors and surfaces, but there are always some extreme-edge color artifacts remaining ... leaving a sort of halo effect around the

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Seth Burgess
You can try Color to Alpha using a background color not found on the stamp, but you may end up needing to do back-filling under the stamp (draw on a layer underneath it) where it removed a portion, and it probably won't work that well for real-world images (slight variations aren't handled well

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Chris Mohler
On Tue, Jan 17, 2012 at 2:52 PM, Jay Smith j...@jaysmith.com wrote: No to Colors-Levels.  The problem in that operation is that it would also affect the related black areas in the postmarks on the stamp.  The color of the postmarks should not be darkened as it would change the appearance

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Willie B Bass
Stop emailing me ___ gimp-user-list mailing list gimp-user-list@gnome.org http://mail.gnome.org/mailman/listinfo/gimp-user-list

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Patrick Shanahan
* Willie B Bass williambray...@gmail.com [01-17-12 16:08]: Stop emailing me ___ gimp-user-list mailing list gimp-user-list@gnome.org http://mail.gnome.org/mailman/listinfo/gimp-user-list Somewhat challenged? Unsubscribe from the list. --

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Steve Kinney
On 01/17/2012 03:17 PM, Jay Smith wrote: Problem: The stamps are currently scanned on a black background (for lack of other color possibilities; the final goal is on a black background). After scanning, the background is selected and turned to 100% black to have greatest contrast for the

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Rob Antonishen
On Tue, Jan 17, 2012 at 3:17 PM, Jay Smith j...@jaysmith.com wrote: Is there something like that which can be used to remove a color halo that results from using a green screen approach to scanning? (I would likely have to select different colors of green screen so that such colors are not

Re: [Gimp-user] Seeking better green screen method

2012-01-17 Thread Judah Kleinveldt
Hi Have tried deep-edging the image using the path tool. I find that using that tool works best when removing a backround in an image. It takes a few minutes, though if you have many stamp-scans with the same dimensiona nd edges that single path you spent an hour creating becomes a joy to