Introduction - If you have any usage issues, please Google them yourself
For a sample point set coarse algorithm hough it is not possible to do all the straight line detection. Hough will be measured on the other hand, much of the straight line does not exist. At a time when the application can only be based on the needs of calibration accuracy of their own. The following is in my MATLAB hough function developed under a gray-scale graphics input matrix, the slope of a straight line back up. to make graphics tilt correction. I hope it can paste a bit with it ~