如何增加/减少位图的亮度? [英] How do you increase/decrease the brightness of a bitmap?

问题描述

如何增加/减少位图的亮度?

How do you increase/decrease the brightness of a bitmap?

推荐答案

为每个像素的所有颜色分量添加一个常量值.
完成此操作的方式取决于位图格式.

gdiplus :: Image类的一些方法可以提供帮助.
(使用google搜索文档地址)

Adding a constant value to all the color components of each pixel.
The way this is done depends on the bitmap format.

There are some methods of the gdiplus::Image class that can help.
(search with google the address of the documentation)

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