Added clamp() for THRESH_TRUNC mode
A more efficient workaround for erode
Optimized memory access by using stride pattern
optimized cv::repeat
Optimize openCL version of reduce function
Change buffer cols count from 64 to 32
fix code in the kernel
Fix some errors
optimized cv::meanStdDev
added performance test
Merge pull request #2787 from ilya-lavrenov:tapi_repeat
Merge pull request #2809 from ilya-lavrenov:tapi_copy_perf
Merge pull request #2781 from ilya-lavrenov:tapi_meanstddev
Merge pull request #2811 from arkunze:pullreq/140516-erode
Merge pull request #2751 from akarsakov:ocl_thresh_opt
Merge pull request #2778 from vbystricky:oclopt_reduce