计算机科学 ›› 2015, Vol. 42 ›› Issue (Z6): 241-242.

• 模式识别与图像处理 • 上一篇    下一篇

基于改进直方图的低照度图像增强算法

何畏   

  1. 安徽邮电职业技术学院计算机系 合肥230001
  • 出版日期:2018-11-14 发布日期:2018-11-14

Low-light Image Enhancement Based on Improve Histogram

HE Wei   

  • Online:2018-11-14 Published:2018-11-14

摘要: 为了提高低照度图像的对比度,提出了一种将对比度增强算法与改进的直方图均衡化方法相结合的图像增强方法。该方法首先利用局部信息进行对比度增强,然后对全局直方图采用改进的均衡化算法进行处理。实验表明,该算法对低照度图像处理后全局清晰,同时局部细节对比度增强效果较好。

Abstract: In this paper,a novel method is proposed in order to enhance the contrast of the images in low-light conditions,which combines improved histogram equalization with the contrast enhancement algorithm.Firstly,the partial information is used to enhance the contrast.Then we adjust the histogram with the improved histogram equalization.Extensive experiments show the efficiency of our method in enhancing the overall contrast and shaping the details of the low-light images.

Key words: Histogram,Low-light image,Image enhance,Contrast enhance,Equalization

[1] Kim Y T.Contrast Enhancement Using Brightness Preserving Bi-histogram Equlization[J].IEEE Trans.on Consumer Electronics,1997,43(1):1-8
[2] 蒋定定,许兆林,李开端.一种实用的夜间航空图像增强算法[J].中国测试技术,2005,1(1):64
[3] Pizer S,et al.Adaptive histogram equ-alization and its variations[J].Computer Vision Graphics & Image Processing,1987,39(3):355-368
[4] Caselles V,et al.Shape preserving local contrast enhancement[C]∥Proceeding of the 1997 Internationgal Conference on Image Processing(ICIP’97).Washington:IEEE Computer Society,1997:314-317
[5] Kim J Y,et al.An adeanced contrast enhancement using partially overlappedsub-block histogram equalization[J].IEEE Transactions on Circuits and Systems for Video Techonlogy,2001,1(4):475-484
[6] 沈嘉励,张宇,王秀坛.一种夜视图象处理的新算法[J].中国图象图形学报,2000,5(A):479-483
[7] 江巨浪,等.保持图像亮度的局部直方图均衡算法[J].电子学报,2006,34(5):861-866
[8] 章毓晋.图像处理和分析[M].北京:清华大学出版社,2003:73-74

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!