一个非常效率很高的识别图像中任意点的R，G，B像素值和灰度值化后灰度值的完整算法，大部分代码写在了一个类中-A very high efficiency of the identification image of an arbitrary point of R, G, and B pixel values ​ ​ and gray scale value after the gradation value of the complete algorithm, most of