利用opencv进行图像特征抽取，包括使用高斯滤波和sobel算子进行边缘提取，使用harris算法进行角点检测，使用hough变换找出图像中最长直线，使用Ranec算法找出图像中直线，Gabor滤波-Using opencv image feature extraction, including the use of Gaussian filtering and Sobel operator edge extraction, Harris algorithm corner detection,

I got this code from one Japanese university. This code written by python+opencv and apply gabor filtering to image. The application with sigma, lamda, theta, gamma, psi slider, you can adjust each slider and see the effect on image simultaneously， i