updated test data for gpu::FastNonLocalMeans
Merge pull request #17 from branch jet47:gpu-fast-nlm
Merge branch '2.4'
updated sift test data; added images for the planar object detector test
Merge branch 'sift_fixes' of https://github.com/vpisarev/opencv_extra into 2.4
Added test data for HoughLines regression test
Merge pull request #18 from ivan-korolev/fix_HoughLines_segfault
Merge branch 'origin/2.4'