图片浏览器基本功能都已实现 可以翻转图片，透明处理，灰度处理，转换格式-Picture Viewer basic functions have been achieved can flip images, transparent process, gray scale processing, format conversion, etc.

图片的基本处理，包括：左旋90°，右旋90°，转180度，水平翻转，垂直翻转，黑白，底片，半透明，马赛克。-Basic image processing, comprising: L90 °, R 90 °, turn 180 degrees, horizontal flip, vertical flip, black and white, film, translucent, mosaic.