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无损图像压缩是图像处理中的一个重要领域 ,传统的基于熵编码的无损压缩编码方式存在一定的局限。利用提升算法构造整数小波变换 ,然后针对无损压缩特点 ,对 SPIHT算法加以改进 ,实现了一种可行的图像无损压缩编码方案。实验表明 ,优于传统熵编码和直接采用 SPIHT的无损压缩方法
Lossless image compression is an important area in image processing. The traditional lossless compression coding method based on entropy coding has some limitations. The lifting algorithm is used to construct integer wavelet transform, and then the SPIHT algorithm is improved for lossless compression. A feasible image lossless compression scheme is achieved. Experimental results show that the proposed method is superior to traditional entropy coding and lossless compression using SPIHT