| 基于小波和阈值的图像压缩方法及实现 |
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| 引用本文： | 吴晶晶,庄艺锋,蒋文贤.基于小波和阈值的图像压缩方法及实现[J].漳州师范学院学报,2006,18(2):21-24. |
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| 作者姓名： | 吴晶晶 庄艺锋 蒋文贤 |
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| 作者单位： | [1]漳州职业技术学院计算机工程系,机械工程系,福建漳州363000 [2]漳州邮政局,福建漳州363000 |
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| 摘 要： | 主要探究基于haar小波分析的图像的分解与重构，并用MATLAB6．5数学软件工具设计了不同阈值下的小波变换和重构图像过程，从中得出，选择合适的小波变换及其阈值的设置是一个至关重要的问题．小波选取的阈值越大，重构图像的失真程度越高，在相同阈值下，haar小波重构图像要比db9小波的重构图像文件小得多，因此haar小波是一种较为有效的图像压缩方法。
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| 关 键 词： | 小波变换 图像压缩 阈值 haar小波分析 |
| 文章编号： | 1008-7826（2006）02-0021-04 |
| 收稿时间： | 2005-12-24 |
| 修稿时间： | 2005年12月24 |
Image Compression Method of Threshold Based on Wavelet Transform and it's Realization |
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| WU Jing-jing,ZHUANG Yi-feng,JIANG Wen-xian.Image Compression Method of Threshold Based on Wavelet Transform and it''''s Realization[J].Journal of ZhangZhou Teachers College(Natural Science),2006,18(2):21-24. |
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| Authors: | WU Jing-jing ZHUANG Yi-feng JIANG Wen-xian |
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| Institution: | 1.Zhangzhou Vocatinal and Technical College ,Computer Dept., Dept.of Mechanical engineering, Zhangzhou, Fujian 363000, China; 2.Zhangzhou Post Office, Zhangzhou, Fujian 363000, China |
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| Abstract: | This paper deals with the image decomposition and construction of wavelet transform ,and uses the MATLAB6.5 to realize the image coding of decomposition and construction based on haar and db9 at different threshold.We can hold the conclusion that the choose of the fit wavelet transform and threshold is important.The greater, the more distortion.To same threshold,the result of haar is less than db9 and it proved that haar is an effective method. |
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| Keywords: | wavelet transform image coding threshold haar |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
