各种图像边缘提取算法的C语言实现及一些测试用图像。这些算法包括：Marr、Canny、shen-Castan、Sobel等等。（注：这些代码是《Algorithms for Image Processing And Computer Vision》一书中的内容，要想理解代码最好参看原书）。-various Image Edge Extraction Algorithm in C language and some test images. These algorithms include : M

I. C. Wong, Z. Shen, J. G. Andrews, and B. L. Evans, ``A Low Complexity Algorithm for Proportional Resource Allocation in OFDMA Systems , Proc. IEEE Int. Work. Signal Processing Systems, 针对这篇文章给出的源代码,matlab code for I. C. Wong, Z. Shen, J. G. Andrew

沈算子，中国人发明的，很好的滤波算子 算法简单，很容易实现-Operator Shen, the Chinese invented a very good filtering algorithm is simple, very easy to achieve

基于opencv的shen-castan边缘检测算法，可以直接运行使用-opencv shen-castan Image detection