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索引算法及其在图像多尺度变换中的应用

DOI: 10.11834/jig.20070206

Keywords: 索引,多尺度变换,快速算法,查表

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Abstract:

给出了几种索引算法模型,然后分析了整数提升小波变换的性质,针对其索引算法的索引矩阵存储空间问题,对5/3小波变换进行改造,提出了一个新的图像多尺度变换,该变换后得到高频系数和低频系数的动态范围与原始图像像素值的动态范围相同,从而可实现多级可逆索引算法。实验结果显示,基于索引算法的图像多尺度变换的速度较普通方法有显著提高。

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