通过高斯函数导数检测图像边缘，实质是方向可调小波变换检测图像边缘（8个方向变换）。-Gaussian function through derivative edge detection in real terms is adjustable direction edge detection wavelet transform (change the direction of 8).

【谷速代码】matlab源码程序 MRF变化检测 可以作为参考使用，程序是word版本 -[Valley] matlab source code speed MRF change detection program can use as a reference, the program is a word version