本程序用MFC编写，运用了书本上的灰度拉伸和中值滤波的知识对图像进行处理。



实现功能如下：



灰度拉伸的变亮和变暗（对8位24位图有效）:

运用了幂次变换。分别是s = r2 和s = r1/2 .

反色（对8位24位图有效）:

s = 1 - r

中值滤波（对8位图有效）：

对3×3网格进行滤波处理，边沿的1圈像素没有处理。

复原（对8位24位图有效）：

将图像还原成未处理前的数据。-the procedures used to prepare MFC, using a book on the gray tensile and median filtering knowledge of image processing. Achieving functions as follows : Variable gray stretch - and darken (eight pairs of 24 map valid) : The Transformation of Power. Were r2 = s and s = r1 / 2. Anti-color (eight pairs of 24 map effective) : s = 1-r median filter (Figure 8 right effective) : 3 x 3 grid filtering, the periphery of a circle of pixels not addressed. Recovery (eight pairs of 24 map effective) : restore the image before unprocessed data.