Itseez/opencv — pull request #1010 by jet47 (2013-06-14 14:07:48+00:00)
Title: gpufilters module refactoring

* Removed old `FilterEngine` classed and introduced single common interface `Filter`.
* Used new Algorithm style (with create* functions).
* Switched to Input/Output arrays.
* Added border extrapolation to NPP filters.