利用Hough transform计算图片中两条直线间的角度，同时计算图片中所有直线汇聚于某一点的坐标-Find the angle of these tow lines shown in the image by Hough transform.As you can see in the image all of such lines are going to merge to a special point (perspective or vanishing point). Find the

寻找照片PS痕迹的代码~大作业编写~可主要用于寻找添加图像块的PS边缘痕迹，-find the hint of a photo which has been PS