| 一种改进的局部对比度图像增强算法 |
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| 引用本文： | 万辉,杨有.一种改进的局部对比度图像增强算法[J].重庆文理学院学报(自然科学版),2007,26(3):29-32. |
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| 作者姓名： | 万辉 杨有 |
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| 作者单位： | 重庆师范大学,数学与计算机科学学院,重庆,沙坪坝,400047 |
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| 基金项目： | 重庆师范大学校科研和教改项目 |
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| 摘 要： | 基于加权自适应直方图均衡法,本文提出了一种局部对比度增强算法.它既考虑了图像细节的增强,也考虑了噪声的抑制.针对图像中不同区域存在对比度差异的情况,通过参数设置使高对比度的区域细节增强较少,而低对比度的区域则加大增强细节的力度,从而改善图像视觉效果.由于在图像的增强处理过程中,忽略了对应于原图像中梯度小于某一域值ε的像素的计算,从而减少了图像增强需要的计算量.实验表明算法是有效的.
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| 关 键 词： | 直方图均衡法 图像增强 空域滤波 |
| 文章编号： | 1673-8012（2007）03-0029-04 |
| 修稿时间： | 2007-01-04 |
An Improved Local Contrast Image Enhancement Algorithm |
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| WAN Hui,YANG You.An Improved Local Contrast Image Enhancement Algorithm[J].Journal of Chongqing University of Arts and Sciences,2007,26(3):29-32. |
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| Authors: | WAN Hui YANG You |
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| Abstract: | A local contrast image enhancement algorithm is proposed based on added weight adaptive histogram equalization algorithm. It considered the enhancement of image details as well as restraint of noise. The different regions of image have different contrast, through setting parameter making the high contrast region less enhancement , in the other hand, low contrast region more enhancoment. So the vision - effect of image is improved. In image enhancement processing, ignored pixel of original image computed that its value less than grads 8 , so the whole time of image enhancement is reduced. The effective of algorithm is proved by result of experiment. |
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| Keywords: | histogram equalization algorithm image enhancement space filter |
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