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《Chinese Journal of Liquid Crystals and Displays》 2013-04
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Design and Realization of Airborne Embedded Image Enhancement System

YIN Chuan-li1,WANG Xiao-zhe2(1.Key Laboratory of Airborne Optical Imaging and Measurement, Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences, Changchun 130033,China; 2.Department of Electronic Engineering,Tsinghua University Beijing 100084,China)  
According to the disadvantage of too strongly contrast enhancement of traditional histogram equalization algorithm,a new image enhancement algorithm based on effective control of contrast was presented.First,the statistical histogram distribution and the ave-rage brightness were calculated.Then the histogram distribution is adjusted by the adaptive method.Finally the converting formula is calculated and the new bright values were obtained.An embedded high speed image enhancement processing system on high performance DSP TMS320DM6455 and FPGA was designed.Experimental results with real images showed that the system can naturally enhance overall image,the local contrast of the image is perfect,and the excessive sense of violation is prevented,and the process is simple,the running speed of the program is fast,so it can meet the requirements in the project.
【Fund】: 国家高技术研究发展计划(863计划)项目(No.2008AA121803);; 中国科学院航空光学成像与测量重点实验室基金(No.2012MS04)
【CateGory Index】: TP391.41
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