该源码实现读入一幅彩色三通道图像，实现显示该图像同时显示输出对应三通道的颜色直方图，方便，直观，可以直接编译。-The source code to achieve read in a color three-channel image, the corresponding three-channel display the image at the same time the output of color histogram, convenient, intuitive, can be di