Error Concealment | JPEG | MPEG-4 | Wavelet | YUV

Hi,
  I'm working with image compression with wavelet transform using different
types of wavelets in MATLAB.I did multi-resolution decomposition and
reconstructed the image.I've calculated the PSNR and MOS. I didn't encode the
image into file.Is it possible to calculate the compression ratio without
encoding (like in DCT) ? If, then whats the procedure?
   
  If anyone has any idea plz share it with me and ur cooperation will be highly
appreciated.
   
  Thanking u,
  Razib, Siam

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