摘要
分析了去灰度冗余的线性灰度变换与基于傅里叶变换的巴特沃斯高通滤波图像增强的基本原理,讨论了它们在图像增强中的实现方法,指出了各自的优点。为了使整体偏暗的印刷电路板(PCB)光电图像更好地增强,提出了结合两者优点的加权平均图像融合增强新方法。对由CCD获取的PCB光电图像进行了实际的图像增强实验,实验结果证明了基本原理分析的正确性。
The basic principle of image enhancement of linearity gray transform based on removing redundance gray and Butterworth high-pass filter based on the Fourier transform is analyzed,and their realization methods in image enhancement are discussed,their respective advantages are indicated.In order to enhance the Printed Circuit Board （PCB） photoelectricity images with dark color in wholc,a novel method of image enhancement of merging both advantages is proposed.The actual image enhancement experiment is executed by PCB photoelectricity image acquired by CCD,the results of the experiment verifies the correctness of the analysis of the basic principle.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第31期25-26,48,共3页
Computer Engineering and Applications
基金
国家重点实验室基金项目No.9140C1406020708
部委基金项目
湖南省科技厅计划项目No.2009FJ3187
广东省东莞正业产学研项目No.0710~~
关键词
图像增强
图像融合
线性灰度变换
灰度冗余
巴特沃斯高通滤波
印刷电络板光电图像
image enhancement
image fusion
linearity gray transform
gray redundanee
Butterworth high-pass filter
Printed Circuit Board（PCB） photoelectricity image
