说明：  2017年06月02日利用hough变换写了一个找圆的函数myFindCircles，找到图像的红色度值，本科毕业设计，验证后是可以用的，实现了苹果红色度特征提取。
(2017 years on June 02 using hough transform to write a function to find round myFindCircles, to find the image of the red color value, undergraduate graduation design, after verification can be used to achieve the apple red color feature extraction.)