| 引用本文： |
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葛善虎,丁宣浩.一种新的在图像压缩中的适度分层阈值法[J].广西科学院学报,2006,22(4):352-354,357. [点击复制]
- GE Shan-hu,DING Xuan-hao.A Hierarchical Threshold Value Method in Image Compression[J].Journal of Guangxi Academy of Sciences,2006,22(4):352-354,357. [点击复制]
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| 摘要: |
| 从图像本身的统计特性出发,利用小波包对图像进行多层分解,提出适度分层阈值法,并将适度分层阈值法与分层阈值法对相同的图像进行对比实验。结果是,适度分层阈值法有效克服了DCT在图像压缩中存在的"方块效应",并且比分层阈值法对图像进行压缩更能达到较好的压缩效果。 |
| 关键词: 小波变换 适度分层阈值法 图像编码 图像压缩 |
| DOI： |
| 投稿时间：2006-07-31 |
| 基金项目:国家自然科学基金支助(项目编号:No.10361003) |
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| A Hierarchical Threshold Value Method in Image Compression |
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GE Shan-hu, DING Xuan-hao
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| (Department of Computing Science and Mathematics, Guilin, Guangxi, 541004, China) |
| Abstract: |
| In terms of statistic characteristics of an image,a wavelet package is used in the multi-layer decomposition of image compression,and that brings up a moderate-hierarchical threshold value method.It is compared with the hierarchical threshold method.The result shows that this method not only overcomes DCT shortcomings of square-piece effect in image compression,but also has more compression effect than the hierarchical threshold method. |
| Key words: wavelet transform moderate-hierarchical threshold value method image coding image compression |
