光电技术应用, 2011, 26 (5): 51, 网络出版: 2011-11-11   

基于中值滤波和生物仿生学的图像增强研究

Research of Image Enhancement Method Based on Median Filtering and Biological Bionics
作者单位
军械工程学院,河北石家庄 050003
摘要
针对红外图像对比度差、信噪比低的特点,提出了一种基于中值滤波和生物仿生学的微光图像对比度增强算法,首先对红外图像进行中值滤波去噪,然后用生物视觉模型对去噪后的图像进行增强得到增强后的图像。实验结果表明,该算法突出了图像的细节信息,同时增强了图像的对比度,与传统的中值滤波加直方图均衡和加权邻域平均加灰度调整等算法相比,图像的信噪比和峰值信噪比都有很大的提高。
Abstract
For infrared image with the characteristics of low contrast and low signal-to-noise ratio (SNR), an infrared image enhancement method based on median filtering and biological bionics is presented. Firstly, the median filtering is used for image de-noising, and then the image is enhanced by using biology vision model. Fi? nally, the enhanced image is obtained. A group of experimental results demonstrate that the presented algorithm can reduce the noise and highlight the image detail, and solve the problem of the low contrast in infrared image. Comparing with the traditional image enhancement methods of median filtering method with histogram equaliza? tion enhancement and weighting neighborhood averaging method with gray value transform, the SNR and peak signal-to-noise ratio (PSNR) of image both are advanced.

王群, 何永强, 周云川. 基于中值滤波和生物仿生学的图像增强研究[J]. 光电技术应用, 2011, 26(5): 51. WAGN Qun, HE Yong-qiang, ZHOU Yun-chuan. Research of Image Enhancement Method Based on Median Filtering and Biological Bionics[J]. Electro-Optic Technology Application, 2011, 26(5): 51.

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