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冯岩, 倪永军. 基于小波变换的零树编码改进算法[J]. 信阳师范学院学报(自然科学版), 2005, 18(2): 217-221.
引用本文: 冯岩, 倪永军. 基于小波变换的零树编码改进算法[J]. 信阳师范学院学报(自然科学版), 2005, 18(2): 217-221.
shu
FENG Yan, NI Yong-jun. The improved embedded zerotree coding algorithm based on wavelet transform[J]. Journal of Xinyang Normal University (Natural Science Edition), 2005, 18(2): 217-221.
Citation: FENG Yan, NI Yong-jun. The improved embedded zerotree coding algorithm based on wavelet transform[J]. Journal of Xinyang Normal University (Natural Science Edition), 2005, 18(2): 217-221.
shu

基于小波变换的零树编码改进算法

The improved embedded zerotree coding algorithm based on wavelet transform

    摘要
  • 摘要: 在讨论小波变换及EZW算法的基础上,分析了EZW算法的不足 通过对低频子带单独编码、在高频子带进行边缘检测、分类编码等措施的研究,提出了一种基于EZW算法的改进算法 实验结果表明:从峰值信噪比及编 /解码时间对照,该算法优于EZW算法

     

    Abstract: Based on discussing the wavelet transform and algorithm of EZW, the shortage of EZW is analyzed. Coding the subbands of low-scaled separating,testing the border of the subbands of high-scaled and the classified code are adopted. The experiment results show that the improved algorithm is superior to EZW by contrasting PSNR/db, the time of coding and decoding.

     

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