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  • 标题:Image Compression Using Modified Fast Haar Wavelet Transform
  • 本地全文:下载
  • 作者:Anuj Bhardwaj ; Rashid Ali
  • 期刊名称:World Applied Sciences Journal
  • 印刷版ISSN:1818-4952
  • 电子版ISSN:1991-6426
  • 出版年度:2010
  • 卷号:7
  • 期号:05
  • 出版社:International Digital Organization for Scientific Information Publications
  • 摘要:

    Wavelets are mathematical tools for hierarchically decomposing functions. Wavelet Transform has
    been proved to be a very useful tool for image processing in recent years. It allows a function which may be
    described in terms of a coarse overall shape, plus details that range from broad to narrow. The most distinctive
    feature of Haar Transform lies in the fact that it lends itself easily to simple manual calculations. Modified Fast
    Haar Wavelet Transform (MFHWT), is one of the algorithms which can reduce the calculation work in Haar
    Transform (HT) and Fast Haar Transform (FHT). The present paper attempts to describe the algorithm for image
    compression using MFHWT and shows better results than those obtained by using any other method on an
    average. It includes a number of examples of different images to validate the utility and significance of
    algorithm’s performance.

  • 关键词:Haar Wavelet Transform ; Fast Haar Wavelet Transform ; Modified Fast Haar Wavelet Transform; PSNR
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