a_jpeg_compression_matlab

代码说明：

  It shows what a jpeg compression is all about. the function implements the DCT transform, using a matrix operator. note that matlab has a function for the DCT and iDCT transforms that might be more efficient. (It shows what a jpeg compression is all abou t. the function implements the DCT transform. using a matrix operator. note that Matlab has a f unction for the DCT and iDCT transforms that mig ht be more efficient.)