中文说明：资源描述本代码是用来把图像从rgb颜色空间转换到hsv颜色空间，然后对h、s、v三个分量求其灰度直方图，最后把该灰度直方图转换成rgb彩色直方图。
English Description：
Application backgroundThis code is used to convert the image from the RGB color space to HSV color space, and then on the h, s, V three components for the gray histogram, and finally the gray histogram into RGB color histogram.