convertConvKernel 1954 modules/imgproc/src/morph.cpp     convertConvKernel( element, kernel, anchor );
convertConvKernel 1965 modules/imgproc/src/morph.cpp     convertConvKernel( element, kernel, anchor );
convertConvKernel 1984 modules/imgproc/src/morph.cpp     convertConvKernel( temp_element, kernel, anchor );