红外技术Issue(12)：1036-1040,5.
基于小波变换与Retinex的电路板红外图像增强技术
The Technology about Infrared Image Enhancement of Circuit Board Based on Wavelet Transform and Retinex
摘要
Abstract
The chip area image enhancement of the circuit board is an important part of the infrared image fault detection system. Because some chip of circuit board has low calorific value, there is no obvious difference between the chip area infrared image and the background area infrared image. To improve the fault detection efficiency, a new infrared image enhancement method based on the wavelet transform and the improved multi-scale Retinex is designed in this paper. Firstly, the wavelet transform is used to obtain sub-band images of different frequency. Then, for low frequency sub-band image, the multi-scale Retinex is used, and for high frequency sub-band image, the variable threshold is applied to de-noise. At last, for the low and high frequency image, the image reconstruction is taken to achieve image fusion. The experiment results show that the method can suppress noise while preserving edge and detail elements, and enhance visual effect effectively.关键词
红外图像/图像增强/小波变换/Retinex/图像清晰度Key words
infrared image/image enhancement/wavelet transform/Retinex/image sharpness分类
信息技术与安全科学引用本文复制引用
郝建新..基于小波变换与Retinex的电路板红外图像增强技术[J].红外技术,2015,(12):1036-1040,5.基金项目
国家自然科学基金，编号U1333111；天津市自然基金，编号12JCQNJC00600。 （）
