利用openCV找出已知图像中的角点， 利用slider bar 控制临界值， 并显示出通过临界值的角点像素， 并用non-maxima suprression 使之变稀疏并显示-routines in OpenCV to demonstrate the operations of the Harris Corner detector. 1. Open the image box_in_scene.jpg and show the image in a window. 2. Compute

在opencv上编写的Harris角点检测，先进行Candy边缘检测，再检测角点，不是直接调用里面的函数，把是角点的位置标记了出来 -Harris corner detection in opencv prepared to make Candy edge detection, and then detect the corner, which is not a direct call function to mark the position of the corner points ou