Check out Seam Carving: http://perso.crans.org/frenoy/matlab2012/seamcarving.pdf http://perso.crans.org/frenoy/matlab2012/seamcarving.pdf It's pretty cool at

Check out Seam Carving: http://perso.crans.org/frenoy/matlab2012/seamcarving.pdf http://perso.crans.org/frenoy/matlab2012/seamcarving.pdf It's pretty cool at altering images to fit an aspect ratio.