一个处理jpeg文件的dll，实现jpeg文件的打开，及其对图像的亮度增强。以及解压成bmp文件格式。-a jpeg processing documents dll achieve jpeg documents opened, and its right to enhance the brightness of the image. And unpacked into bmp file format.

实现灰度图像的对比度，亮度，模糊的改变，可增强，可减弱。-Grayscale image contrast, brightness, blur change can be enhanced, can be reduced.

图像亮度增强，使用多种非线性函数，例如伽马函数等-Image brightness enhancement, using a variety of non-linear function, such as gamma functions, etc.