| 模拟频域滤波重构直方图均衡的图像增强方法 |
| |
| 引用本文： | 刘焕雨,万秋华,熊文卓,楚广生,吴永芝.模拟频域滤波重构直方图均衡的图像增强方法[J].光电工程,2007,34(3):68-71. |
| |
| 作者姓名： | 刘焕雨 万秋华 熊文卓 楚广生 吴永芝 |
| |
| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院研究生院,北京,100039
2. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130033 |
| |
| 摘 要： | 针对传统图像增强方法的不足,提出一种基于模拟频域滤波重构直方图均衡的图像增强方法.将频率域滤波的思想引入空间域直方图运算当中,在模拟频率直方图统计中进行频率信息的统计,利用这些频率信息建立模拟频率域坐标,进行模拟频域滤波,对滤波处理后的直方图进行均衡化处理.实验表明:与传统方法相比,该算法优化了灰度级的动态分布范围,能得到更清晰的增强效果,且在图像中没有视觉明显的噪声放大.
|
| 关 键 词： | 图像增强 模拟频率直方图统计 模拟频域滤波 重构直方图均衡 |
| 文章编号： | 1003-501X(2007)03-0068-04 |
| 收稿时间： | 2006/4/18 |
| 修稿时间： | 2006-04-18 |
Image enhancing method based on reconstructed histogram equalization after simulated frequency domain filter |
| |
| LIU Huan-yu,WAN Qiu-hua,XIONG Wen-zhuo,CHU Guang-sheng,WU Yong-zhi.Image enhancing method based on reconstructed histogram equalization after simulated frequency domain filter[J].Opto-Electronic Engineering,2007,34(3):68-71. |
| |
| Authors: | LIU Huan-yu WAN Qiu-hua XIONG Wen-zhuo CHU Guang-sheng WU Yong-zhi |
| |
| Affiliation: | 1. Changchun Institute of Optics, Fine Mechanics and Physics, the Chinese Academy of Sciences, Changchun 130033, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
| |
| Abstract: | In view of the faults of traditional image enhancing method,a new method based on reconstructed histogram equalization after simulating frequency domain filter is presented.Frequency domain filter algorithm is applied to spatial domain histogram operation.Frequency information is acquired statistically in simulated frequency histogram statistic first,then simulated frequency domain coordinates are constituted with this frequency information,and simulated frequency domain filter is done.Last,histogram filtered is equalized.Experimental results show that,compared with general methods,the new way can optimize dynamic range of the gray level,enhance image more clearly,and amplify noise unobviously in processed image. |
| |
| Keywords: | Image enhancement Simulated frequency histogram statistic Simulated frequency filter Reconstructed histogram equalization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
