preCornerDetect   671 modules/imgproc/src/corner.cpp void cv::preCornerDetect( InputArray _src, OutputArray _dst, int ksize, int borderType )
preCornerDetect    46 modules/imgproc/src/opencl/precornerdetect.cl __kernel void preCornerDetect(__global const uchar * Dxptr, int dx_step, int dx_offset,