这个源代码实现的功能是读入一幅图像，将其转换至hsv颜色空间，计算并显示图像的hs直方图，方便，直观，可以直接编译。-The function of the source code implementation is read in an image, convert it to HSV color space, calculate and display the hs histogram of the image and is convenient, intuitive, can be dir