其使用java编写的图像灰度化变换的程序，环境是eclipse，调用了java的图像处理类，对于任意的图片都可处理，并显示灰度化的。-Programs written using java grayscale image conversion, the environment eclipse, call the java class image processing, for any image can be processed and displayed in grayscale.

在Android Studio中调用opencv的库，对图像进行灰度化处理的操作。(In Android Studio, the library of OpenCV is called, and the image is grayscale processing.)