说明：  文章的内容是一个数字图像处理的应用程序，它完成的功能包括对图像颜色的翻转、对图像进行灰度处理和对图像进行增亮处理
(Content of the article is a digital image processing applications, it features include complete flip the image color, the gray-scale image processing and brightening the image processing)