Color Image Coding by Modified Embedded Zerotree Wavelet (EZW) Algorithm

  title={Color Image Coding by Modified Embedded Zerotree Wavelet (EZW) Algorithm},
  author={Abdelkrim Ouafi and A. Taleb Ahmed and Z. Baarir and Noureddine Doghmane and A. Zitouni},
  journal={2006 2nd International Conference on Information & Communication Technologies},
In this paper, a new approach of images coding by Shapiro algorithm (embedded zerotree wavelet algorithm or EZW) is proposed. This approach, the modified EZW (MEZW), distributes entropy differently than Shapiro's and also optimizes the coding. This can produce results that are a significant improvement on the PSNR and compression ratio obtained by Shapiro, without affecting the computing time. These results are also comparable with those obtained using the SPIHT and SPECK algorithms. The EZW… CONTINUE READING