Dig into specifics of graphicmagic/imagemagick implement of compare between images.

[pharaun]

gm compare -metric mse -size 128x128 plasma: -size 200x200 plasma:

Apparently graphicmagick and imagemagick both supports a way to compare two image, should dig into their implementation and see how those work and if its worth interfacing to in my project or not.

[pharaun]

http://www.graphicsmagick.org/api/api.html <- look at interfacing with this if this is sufficiently fast