Hi, I have a flatbed scanner (by HP) attached to my Linux machine, and I often need to scan rectangular items such as photographs, CD inserts, and the occasional piece of paper.
At the moment, I follow a tedious manual process to do that: The scanner generates a big image of everything it sees on glass window, and then using Gimp I manually rotate the image (because I can't place it on the window with 100% precision) and then crop it to the rectangle. Supposedly, Photoshop has an "Automate->Crop and Straighten Photos" feature (see http://www.photoshopessentials.com/photo-editing/crop-straighten/) but I couldn't find such a feature in Gimp. I was really surprised that I couldn't easily find some program to do this automatically: The program would recognize (using a relatively simple algorithm) the foreground rectangle in the image, rotate it to be perfectly horizontal, and then crop the image to it. Does anyone know of such a program? Obviously, it needs to be free software running on Linux. Bonus points if it's a command line program (a la netpbm or imagemagick) and not an "integrated" GUI program. Extra bonus points if it's a pipeline of netpbm or netpbm-like tools :-) But any other sort of (free) solution would also be acceptable. Thanks, Nadav. -- Nadav Har'El | Tuesday, May 3 2011, 29 Nisan 5771 n...@math.technion.ac.il |----------------------------------------- Phone +972-523-790466, ICQ 13349191 |Sign seen in restaurant: We Reserve The http://nadav.harel.org.il |Right To Serve Refuse To Anyone! _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
