一种直线的快速检测算法，检测效果好于canny等常见算法，a fast line segment detector-A linear algorithm for the rapid detection, detection is better than other common canny algorithm, a fast line segment detector

canny算子进行边缘检测，然后用hough算法进行直线检测。-canny operator edge extraction from image, and then use the hough algorithm line detection.

霍夫变换检测直线。很好的算法，有助于学习霍夫变换-Hough transform line detection. A good algorithm, is helpful to the study of Hough transform