the CUDPP api seems interesting for calculation of integral images.
a short introduction on integral images is given here:
the idea is, to sum up the intensity values of a digital image N(x,y), so that the new image I(x,y)
holds the sum of intensities in the rectangle N(0,0), N(x,y).
given I(x,y) one could compute the intensity sum of any rectangle in N(x,y) with just 2 adds and 2 subs.
a simple way to implement integral images on a parallel architecture is, first to calc a row-integrated image in parallel, and then column-integrate that image in the same way.
any suggestions doing this with CUDPP?