| 一种基于C2连续Catmull-Rom样条的图像放大方法 |
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| 引用本文： | 江巨浪,张佑生,胡连生,薛峰.一种基于C2连续Catmull-Rom样条的图像放大方法[J].合肥工业大学学报(自然科学版),2006,29(4):385-388. |
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| 作者姓名： | 江巨浪 张佑生 胡连生 薛峰 |
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| 作者单位： | 合肥工业大学计算机与信息学院,安徽,合肥,230009;安庆师范学院物理与电气工程学院,安徽,安庆,246011;合肥工业大学计算机与信息学院,安徽,合肥,230009;南京审计学院信息科学学院,江苏,南京,210029 |
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| 基金项目： | 中国科学院资助项目
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安徽省自然科学基金
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安徽省教育厅自然科学基金 |
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| 摘 要： | 针对图像高倍放大易出现block现象,文章构造了一类5次的Catmull-Rom样条用于图像放大,取得了较为满意的效果;与3次Catmull-Rom样条具有C1连续的性质相比,所构造的5次Catmull-Rom样条在不增加插值节点情况下达到C2连续;实验结果表明,该样条用于图像放大时运行速度快,能够在放大倍数很高的情况下不出现block现象,适用于对图像的快速与高倍放大处理。
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| 关 键 词： | 图像放大 高倍放大 Catmull-Rom样条 C2连续 |
| 文章编号： | 1003-5060(2006)04-0385-04 |
| 修稿时间： | 2005年4月27日 |
Image magnification method based on the C2-continuous Catmull-Rom spline |
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| JIANG Ju-lang,ZHANG You-sheng,HU Lian-sheng,XUE Feng.Image magnification method based on the C2-continuous Catmull-Rom spline[J].Journal of Hefei University of Technology(Natural Science),2006,29(4):385-388. |
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| Authors: | JIANG Ju-lang ZHANG You-sheng HU Lian-sheng XUE Feng |
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| Abstract: | To avoid the block phenomenon of high-multiple image magnification,a kind of C~2 Catmull-Rom spline function of five-degree is constructed.Compared with C~1-continuous Catmull-Rom spline function of three-degree,the five-degree Catmull-Rom spline presented has the C~2-continuous character while the number of interpolating nodes needs not to be added.The experiment results show that the method of image magnification at high multiple using the five-degree C~2 Catmull-Rom spline can produce high quality images and has a high running speed,so it is suitable for the occasions where both high speed and high multiple in image magnification are required. |
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| Keywords: | image magnification magnification at high multiple Catmull-Rom spline C~2-continuity |
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