注意：本程序中，每点击一次“增加亮度”，图像灰度提升16；

Note : This procedure, every click an "increase in brightness, " gray upgrade 16;

youdao

注意：本程序中，每点击一次“增加亮度”，图像灰度提升16；

Note : This procedure, every click an "increase in brightness, " gray upgrade 16;

youdao