Itseez/opencv — pull request #3394 by akarsakov (2014-11-06 10:10:30+00:00)
Title: OCL: minor optimization for Canny

Attempt to optimize `stage1_with_sobel` kernel using float calculations instead integer.

check_regression=*OCL*Canny*
test_filter=*OCL*Canny*
test_modules=imgproc
build_examples=OFF