OPENCV下Hough变换的例程。过程比较详细，并附有使用说明文档。-OPENCV under Hough transform routines. Process in more detail, together with the use of documentation.

底层是c++， opencv霍夫变换检测图片中的直线,供大家参考。- The bottom is c++, Opencv Hough transform detection in the picture of the line, for your reference.