| 基于内容的嵌入零树小波图像编码算法 |
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| 引用本文： | 王向阳,杨红颖. 基于内容的嵌入零树小波图像编码算法[J]. 小型微型计算机系统, 2004, 25(7): 1372-1374 |
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| 作者姓名： | 王向阳 杨红颖 |
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| 作者单位： | 辽宁师范大学,计算机与信息技术学院,辽宁,大连,116029 |
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| 基金项目： | 辽宁省自然科学基金(20032100)资助. |
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| 摘 要： | 提出了一种基于内容的嵌入零树小波图像编码算法 ,该算法以 EZW编码方案为基础 ,但能够充分依据人眼视觉掩蔽特性自适应确定高频子带系数的扫描顺序 ,从而有效克服 EZW算法低比特率下图像边缘及纹理处复原质量不理想的弱点 .对比实验表明 :本文算法的图像复原质量明显优于 EZW等算法
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| 关 键 词： | 小波变换 EZW算法 视觉掩蔽特性 图像块 |
| 文章编号： | 1000-1220(2004)07-1372-03 |
New Content-Based Embedded Zerotree Wavelet Image Coding |
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| WANG Xiang yang,YANG Hong ying. New Content-Based Embedded Zerotree Wavelet Image Coding[J]. Mini-micro Systems, 2004, 25(7): 1372-1374 |
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| Authors: | WANG Xiang yang YANG Hong ying |
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| Abstract: | In this paper, a new content based embedded zerotree wavelet image coding is presented . It can be viewed as an improved version of EZW algorithm. But unlike EZW, the coefficients in high frequency subband is scanned adaptively in the order of visual masking value in our compression algorithm, which improve the recovery quality of image edge and texture. The experiment results show that the new image compression scheme performs better than that of EZW and other improved coding on the aspects of recovery image quality. |
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| Keywords: | wavelet transform EZW algorithm visual masking image block |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
