离散余弦变换,实现数据的压缩以及相应噪声的去除-Discrete cosine transform, data compression and noise removal of the corresponding

对图像进行DCT正反变换，可以在matlab里面观察正变换后的数据，达到数据压缩。-DCT pros and transform the image in matlab which observed data is transformed to achieve data compression.

关于数据压缩的DCT压缩和hoffman压缩算法，有详细的例子，运行有效，推荐下载-DCT hoffman data compressing