C++链码识别，通过输入图像，自动寻找轮廓的链码，需在opencv下执行-C++ chain code recognition, by the input image, automatically find the outline of the chain code, need to run opencv under

本代码在opencv下运行，可执行。通过提取图像的轮廓，用链码表示出来。-The run, the executable code in opencv. Represented by extracting the outline of the image, using a chain code.

利用算法对图像的轮廓进行检测，并显示出来。-Algorithm using contour image is detected and displayed.