| 提升小波变换与分形相结合的图像压缩 |
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| 引用本文： | 宋凭,刘波,曹剑中,张仲敏,李荣. 提升小波变换与分形相结合的图像压缩[J]. 光子学报, 2006, 35(11): 1784-1787 |
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| 作者姓名： | 宋凭 刘波 曹剑中 张仲敏 李荣 |
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| 作者单位： | 中国科学院西安光学精密机械研究所,西安,710068;西安通信学院计算机与信息工程系,西安,710106;中国科学院西安光学精密机械研究所,西安,710068;西安通信学院计算机与信息工程系,西安,710106 |
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| 摘 要： | 提出了一种提升小波变换与分形相结合的图像压缩方案.充分利用小波变换后系数能量的分布特性,对提升小波变换后的低频部分采用改进的分形图像压缩编码,其余部分采用集合分裂嵌入块(SPECK)编码算法.试验结果表明,该方法在提高了压缩效率的同时,获得了较高的恢复图像质量.
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| 关 键 词： | 图像压缩 提升小波变换 分形图像压缩 SPECK算法 |
| 收稿时间： | 2005-06-24 |
| 修稿时间： | 2005-06-24 |
Image Compression Based on the Combination of Lifting Wavelet Transform and Fractal |
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| Song Ping,Liu Bo,Cao Jianzhong,Zhang Zhongmin,Li Rong. Image Compression Based on the Combination of Lifting Wavelet Transform and Fractal[J]. Acta Photonica Sinica, 2006, 35(11): 1784-1787 |
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| Authors: | Song Ping Liu Bo Cao Jianzhong Zhang Zhongmin Li Rong |
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| Affiliation: | 1 Xi′an Institute of Optics &; Precision Mechanics,Chinese Academy of Sciences,Xi′an 710068
2 Dept.of Computer &; Information Engineering,Xi′an Communications Institute,Xi′an 710106 |
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| Abstract: | An image compression project based on the combination of lifting wavelet transform and fractal was proposed. Making the best of the coefficients' distribution,the algorithm was consisted of improved fractal coding in low-frequency of lifting wavelet transform coefficients and SPECK coding in other parts.The experimental results show that the quality of the image was improved at enhancing compression efficiency. |
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| Keywords: | Image compression Lifting wavelet transform Fractal SPECK algorithm |
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