Restore OpenCL branch for minmaxLoc on float data
moved nonfree and a part of features2d to opencv_contrib/xfeatures2d
fixed doc builder complains and the test failures
removed the stuff that's now in xfeatures2d; temporarily added dummy definition of SIFT to make doc builder pass (will remove it later)
removed the stuff that's now in xfeatures2d; temporarily added dummy definition of SIFT to make doc builder pass (will remove it later)
CPU (non-OpenCL) CLAHE now supports CV_16UC1.
Fixed warning with "uninitialized local variable"
fixed more doc builder warnings
Increased epsilon for passing test with IPPICV
Remove mul24, for CV8UC3 3840x2160 it generates implementation specific result
fixed Erode and Dilate in case of kernel = Mat()
Merge pull request #3073 from vbystricky:ocl_fixMinMaxLoc
Added ROUNDING_EPS for identical rounding after dividing on different platforms
removed some more trailing whitespaces
Merge pull request #3033 from nathanjackson:clahe_datatypes
Added check required local memory size for non-inplace transpose kernel
fixed test for ocl PlaneWarperTest
Disabled ippiFilterBoxBorder_* in case maskSize equal roiSize for any dimension
Change decimation enum values so they can be used in resolution calculations.
BUGFIX: Fixed bugged when setting PVAPI property CV_CAP_PROP_FRAME_HEIGHT.
Merge pull request #3078 from vpisarev:refactor_features2d_take3