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摘要： 基于小波变换的图像压缩算法在含噪图像和较低码率时出现的边缘模糊现象多年来一直未能得到很好的解决，为了解决这一问题，提出一种基于边缘检测的噪声图像压缩编码方法。首先，对图像进行小波边缘检测，确定哪些小波系数是图像的边缘特征，将其保护起来；然后，对小波变换域系数采用软阈值收缩方法实现去噪；最后，利用等级树集合分裂算法(SPIHT)算法对图像进行压缩编码。实验结果表明，本文提出的方法不仅能获得较高的图像压缩率、较好地去除噪声，而且能在一定程度上解决边缘模糊问题。
