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| 一种新的基于小波变换的图像放大算法 | |
| 引用本文： | 董卫军,周明全,耿国华. 一种新的基于小波变换的图像放大算法[J]. 计算机应用与软件, 2007, 24(4): 18-20 |
| 作者姓名： | 董卫军 周明全 耿国华 |
| 作者单位： | 西北大学计算机科学系,陕西,西安,710069;西北大学计算机科学系,陕西,西安,710069;西北大学计算机科学系,陕西,西安,710069 |
| 基金项目： | 国家自然科学基金 , 国家高技术研究发展计划(863计划) |
| 摘 要： | 图像放大技术的主要难点在于如何使放大后的图像尽可能保持原始图像的清晰度.传统的内插法存在着一定的缺陷.提出了一种新的图像放大算法,该算法以小波变换为基础,采用分段样条插值法进行高频系数放大,通过对变换系数进行非线性增强保证放大图像的清晰度.实验证明,该方法具有很好的放大效果. |
| 关 键 词： | 内插算法 小波变换 图像缩放 系数重构 |
| 修稿时间： | 2005-01-17 |
A NEW IMAGE MAGNIFICATION BASED ON WAVELET TRANSFORM |
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| Dong Weijun,Zhou Mingquan,Geng Guohua. A NEW IMAGE MAGNIFICATION BASED ON WAVELET TRANSFORM[J]. Computer Applications and Software, 2007, 24(4): 18-20 | |
| Authors: | Dong Weijun Zhou Mingquan Geng Guohua |
| Abstract: | The main difficulty of image magnification technique lies in how to ensure the definition of the amplificatory image.Because traditional interpolation algorithm has its fault,propose a new image magnification algorithm which based on wavelet transform,through the incontinuous spline interpolation to enlarge the high frequency factor,through different enhancement the coefficients at each scale to keep the definition of the amplificatory image.The test demonstrates that algorithm has a very good magnification effect. |
| Keywords: | Interpolation algorithm Wavelet transform Image zooming Coefficient reconstruct |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |