| 基于离散Sibson插值的反半色调算法 |
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| 引用本文： | 王磊,李学庆.基于离散Sibson插值的反半色调算法[J].电子学报,2011,39(1):70-75. |
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| 作者姓名： | 王磊 李学庆 |
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| 作者单位： | 山东大学计算机科学与技术学院; |
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| 基金项目： | 国家科技支撑计划(No.2006BAF01A44-1) |
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| 摘 要： | 本文提出了一种基于离散Sibson插值的盲反半色调方法.算法建立在统一的离散Voronoi图框架之上,通过自适应Voronoi区域估计得到种子点的灰度值,然后通过离散Sibson插值将传统的反半色调问题转化为插值问题并计算获取连续色调图像.算法不需要知道任何先验知识,因此算法具有更广的适用性,可以被应用于任意方法生成的...
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| 关 键 词： | 半色调 反半色调 误差扩散 离散Voronoi图 离散Sibson插值 |
| 收稿时间： | 2010-03-23 |
Inverse Halftoning Based on Discrete Sibson Interpolation |
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| WANG Lei,LI Xue-qing.Inverse Halftoning Based on Discrete Sibson Interpolation[J].Acta Electronica Sinica,2011,39(1):70-75. |
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| Authors: | WANG Lei LI Xue-qing |
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| Affiliation: | WANG Lei,LI Xue-qing(College of Computer Science and Technology,Shandong University,Jinan,Shandong 250101,China) |
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| Abstract: | We proposed a blind inverse halftoning algorithm with discrete Sibson interpolation.In our algorithm,a unified framework based on discrete Voronoi diagram is used to recover continuous-tone(contone) images from halftone images.At first,the halftone dots' intensity is estimated by the corresponding Voronoi diagram information.We further perform the discrete Sibson interpolation based on discrete Voronoi diagram to get the contone image.This algorithm is universal to all types of halftone images since it is i... |
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| Keywords: | digital halftoning inverse halftoning error diffusion discrete Voronoi diagram discrete Sibson interpolation |
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