图像处理Matlab源代码，包括二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，模拟图像受高斯白噪声和椒盐噪声的影响。 -Including discrete cosine transform image compression, the use of gray-scale transformation method to enhance image contrast, histogram equalization, analog image by Gauss