| 多尺度Retinex算法在简牍图像增强中的应用 |
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| 引用本文： | 汪刘艳,王绪本.多尺度Retinex算法在简牍图像增强中的应用[J].计算机科学,2009,36(3):288-290. |
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| 作者姓名： | 汪刘艳 王绪本 |
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| 作者单位： | 四川成都理工大学信息工程学院,成都,610059 |
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| 摘 要： | 简牍图像增强是简牍文字修复和文字信息提取最为关键的一个步骤.以长沙简牍博物馆收藏的简牍文物为实物模型,以该馆提供的简牍数字图像为研究对象,提出了基于多尺度Retinex(MSR)算法的简牍图像增强方法,论述了本算法的原理及实现方法.采用MSR算法来消除光照对简牍图像的退化影响,以达到增强图像暗区细节信息的目的;同时针对MSR输出图像偏暗,提出了直方图拉伸算法.试验结果表明:本算法能够提高简牍图像对比度的同时,能显著地增强图像暗区的细节信息并且使简牍图像具有较好、较高的色彩保真度.本方法克服了目前常规的图像增强方法的不足,能够满足简牍考古人员的要求.
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| 关 键 词： | Retinex理论 多尺度Retinex算法 直方图拉伸 简牍图像 |
| 收稿时间： | 2008/7/10 0:00:00 |
Application of Multiscale Retinex in JianDu Image Enhancement |
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| WANG Liu-yan,WANG Xu-ben.Application of Multiscale Retinex in JianDu Image Enhancement[J].Computer Science,2009,36(3):288-290. |
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| Authors: | WANG Liu-yan WANG Xu-ben |
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| Affiliation: | College of Information Engineering;Chengdu University of Technology;Chengdu 610059;China |
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| Abstract: | Enhancement of the JianDu Image is a key procedure in character reconstruction and text extraction.We made the JianDu relics from Changsha Jiandu museum as a model and taken the JianDu images as our research objects.An enhancement algorithm of JianDu image based on multiscale Retinex was presented.Based on the theory of Retinex,the multi-scale Retinex(MSR) algorithm was employed to remove the luminance degradation of the JianDu image.The information of hidden area of the JianDu image was obviously enhanced.... |
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| Keywords: | Retinex theory Multiscale retinex Histogram stretching JianDu image |
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