ImageMagick can mass-crop images, with adjustable tolerance. It can also deskew (turn to right angle) images: http://greyproc.blogspot.co.uk/2012/03/batch-straighteningdeskewing-and.html
On Wed, Feb 13, 2013 at 2:45 PM, Andy Mabbett andy@pigsonthewing.org.ukwrote:
On 12 February 2013 14:30, Andy Mabbett andy@pigsonthewing.org.uk wrote:
For Windows users, IrfanView (freeware) allows batch rotation and cropping (to specific sizes; it doesn't do edge detection, though I will raise a feature request). It's also useful for manual cropping, resizing, format conversion, etc. being small and lightweight.
I'm informed that IrfanView "auto-crop borders already works, with higher color tolerancy in: properties->editing" (I've not tried it, yet)
-- Andy Mabbett @pigsonthewing http://pigsonthewing.org.uk
Wikimedia UK mailing list wikimediauk-l@wikimedia.org http://mail.wikimedia.org/mailman/listinfo/wikimediauk-l WMUK: http://uk.wikimedia.org