基于OPENCV的色调调整，将图像进行色彩空间转换RGB 转换到HSV 对H分量进行调节-Hue adjust depend on OPENCV. Firstly,converting the picture space RBG to HSV. Then, adjust the value of H.Finally convert the picture back to the RGB space.

本程序使用opencv将RGB转换成HSV颜色空间，并且读取H通道图像。-This program uses opencv RGB to HSV color space , and to read the H-channel image .