WebGL implemention of summed area tables / integral images / superfast (box) blur
As a work in progress, this is not yet running on all the systems that i have tested it on.
Read the comments in the code ;)

http://www.aishack.in/2010/07/integral-images/
http://www.nvidia.com/docs/IO/8227/GDC2003_SummedAreaTables.pdf

desired fps (actual: )
raw
points
full