对位图进行图像反色，线性变换、阀门变换、窗口变换、灰度拉伸、灰度均衡等

用VC方法成功的将图像的灰度变换，包括线行变换，阈值变换，灰度拉伸，均衡等功能。-VC method was successfully used the image of the gray-scale transformation, including the wire-line transformation, threshold transformation, gray stretch, balance and other functions.

图像处理一个简单的小程序，实现图像灰度拉伸和直方图均衡-Image stretching and histogram equalization