opencv的图像打开、二值化、取轮廓、反色及相关教程,opencv image open, binary, take contour, color and related anti-Tutorial

VS2010下，通过opencv实现对三类目标的特征提取，包括颜色特征、纹理特征和轮廓特征-Under VS2010, opencv achieved through three types of feature extraction targets, including color, texture and contour characteristic feature