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修正Retinex照射反射模型的彩色图像增强 被引量：2

Color image enhancement of modified Retinex illumination-reflection model
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摘要 介绍了修正Retinex照射反射模型的彩色图像增强方法,引入了非线性变换函数修正彩色图像的照射分量和反射分量。由于全局对比度增强函数能够拉伸图像的照射分量,所以改善了全局视觉效果。非线性S型函数对较大和较小的反射分量值改变较小,对中间值改变较大,从而改善了图像的局部对比度。在RGB彩色空间和其他色度亮度彩色空间中的处理结果都没有出现彩色失真的现象。 Color image enhancement of modified Retinex illumination-reflection model is proposed.And nonlinear transformation functions are introduced to modify illumination and reflection components of color image.Global contrast enhancement function can stretch illumination component,so whole visual appearance is improved.Nonlinear sigmoid function changes little for higher and lower of reflection component value,and more for median of reflection.Finally local contrast of image is enhanced.The method has not cause color distortion for RGB and other chroma-luminant color space.
作者 李冠章 罗武胜 李沛 吕海宝
机构地区 国防科学技术大学机电工程与自动化学院
出处 《光学技术》 CAS CSCD 北大核心 2010年第2期205-208,共4页 Optical Technique
关键词 信息光学 RETINEX 人类视觉系统 照射反射模型 彩色图像增强 information optics Retinex HVS illumination-reflection model color image enhancement
分类号 TP391.41 [自动化与计算机技术—计算机应用技术]
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参考文献11

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二级参考文献10

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共引文献16

同被引文献71

  • 1姚远,门爱东.基于GLG算法的彩色图像对比度增强改进方法[J].电视技术,2009,33(S2):133-135. 被引量：2
  • 2AIMI SALIHAH, MASHOR M Y. Improving colour image seg- mentation on acute myelogenous leukaemia images using con- trast enhancement techniques [ C ]. Kuala Lumpur, Malaysia: IEEE EMBS Conference on Biomedical Engineering &Sciences ,2010:246 - 251.
  • 3HASAN D. Satellite Image contrast enhancement using dis- crete wavelet transform and singular value decomposition [ J ]. IEEE Geoscience And Remote Sensing Letters,2010,7 (2) :333 -337.
  • 4ANUSTUP C. Color contrast enhancement for visually im- paired people [ C]. IEEE Conference of Communication, 2010:33 - 40.
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  • 6CHEN S D, RAMLI A R. Contrast enhancement using recur- sive mean-separate histogram equalization for scalable brightness preservation [ J ]. IEEE Transactions on Consumer Electronics, 2003,49 (4) : 1301 - 1309.
  • 7WANG Y, CHEN Q, ZHANG B. Image enhancement based on equal area dualistic sub - image histogram equalization method [ J]. IEEE Transactions on Consumer Electronics, 1999,45 ( 1 ) :68 - 75.
  • 8SIM K S, TSO C P, TAN Y Y. Recursive sub-image hist- ngram equalization applied to gray scale images [ J ]. Pattern Recognition Letters ,2007,28 (10) : 1209 - 1221.
  • 9CHEN S D, RARNLI A R. Minimum mean brightness error bi -histogram equalization in contrast enhancement [ J ]. IEEE Transactions on Consumer Electronics, 2003, 49 ( 4 ) : 1310 -1319.
  • 10ANISH KUMAR. Illumination reduction for low contrast color image enhancement with homomorphic filtering technique [ C]. International Conference on Communication Systems and Network Technologies, 2012 : 171 - 173.

引证文献2

二级引证文献11

光学技术
2010年 第2期

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