A really cool and beautiful idea, how one can resize images in a content-aware fashion - check the picture for (ragged) lines across the picture which provide the lowest additional details to the picture.
The video is giving a very good impression!
Nice idea - nice result!
Shai Avidan, Ariel Shamir: Seam Carving for Content-Aware Image Resizing
ACM Transactions on Graphics, Volume 26, Number 3,