利用Visual C#处理数字图像

Using Visual C# Processing the IKgital Image

Visual C#GDI+虽然提供了许多基本的图像对象和方法功能,但要进行比较复杂的图像处理,需要结合图像处理算法才能实现．这里利用C#语言的GDI+原理,论述怎样使用颜色矩阵和Unsafe不安全代码类两种方法,对数字图象进行处理,包括图像的亮度处理、灰度处理、透明处理等．用Unsafe方法实现类似C指针原理,对图像进行逐个象素处理,功能强大;用颜色矩阵方法实现简单,只要对不同的图象处理定义不同的颜色矩阵,但有部分图象处理功能无法定义出矩阵．

Although Visual C # GDI＋ provides many basic functions of image objects and methods, for the more complicated image processing, it is necessary to integrate image processing algorithm can be achieved. GDI＋C# language used here, the paper describes how to use the two types of color matrix and Unsafe method of digital image processing, including image brightness processing ,gradation processing and transparence processing. Unsafe methods used to achieve similar C indicators principle of the by-pixel image processing. The color matrix method is simple, it defines the different color matrix to every kinds of image processing, but some functions can not define matrix method.