Wavelet transforms in a JPEG-like image coder

  title={Wavelet transforms in a JPEG-like image coder},
  author={Ricardo L. de Queiroz and C. K. Choi and Young Mi Huh and K. Raghunath Rao},
  journal={IEEE Trans. Circuits Syst. Video Techn.},
The discrete wavelet transform (DWT) is incorporated into the JPEG baseline system for image coding. The discrete cosine transform (DCT) is replaced by an association of two-channel filter banks connected hierarchically. JPEG block-scanning and quantization schemes are adopted while we use JPEG’s entropy coder. The changes in scanning can be incorporated into the transform block in such a way that the only part that needs to be changed in a JPEG framework is to replace the DCT by the DWT… CONTINUE READING
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