journal6 ›› 2009, Vol. 30 ›› Issue (4): 37-40.

• 计算机 • 上一篇    下一篇

基于多尺度Retinex理论的彩色图像增强算法

  

  1. (华南农业大学理学院,广东 广州 510642)
  • 出版日期:2009-07-25 发布日期:2012-04-22
  • 作者简介:房少梅(1964-),女,新疆伊犁人,教授,博士,主要从事偏微分方程理论及应用、图像处理研究.
  • 基金资助:

    国家自然科学基金资助项目(10576013,10871075)

Multi-Scale Retinex Enhancement Algorithm of Color Images

  1. (College of Science,South China Agric. Univ.,Guangzhou 510642,China)
  • Online:2009-07-25 Published:2012-04-22

摘要:提出一种基于Retinex理论的图像增强算法,Retinex理论的实质就是从图像I中获得物体的反射性质R,即抛开入射光的性质获得物体的本来面貌,对多尺度的Retinex理论算法进行改进,即将直方图均衡化算法用于多尺度的Retinex算法中.通过该方法得到的图像具有色彩逼真、动态范围大等特点.实验表明该算法确实对彩色图像起到增强的效果.

关键词: 图像增强, Retinex理论, 颜色恒常性, 多尺度, 直方图均衡化, 动态压缩范围

Abstract: Enhancement algorithm of images based on Retinex theory is proposed.The essence of Retinex theory is to gain the reflection property R from image I,i.e.,to gain the original image of an object without the properties of incident lignt.To improve multi-scale Retinex algorithm is to use histogram equalization algorithm in multi-scale Retinex algorithm.Images gained by that method have lifelike colors and large dynamic range.Experiments show that the algorithm has enhancing effect on color images.

Key words: image enhancement, Retinex theory, color constancy, multi-scale, histogram equalization, dynamic compression range

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