Itseez/opencv — pull request #3002 by vbystricky (2014-07-25 06:49:08+00:00)
Title: OCL: Optimize ocl function pyrDown

**WIP**

Work with two row in workgroup instead one.

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