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《Journal of Anshan University of Science and Technology》 2006-01
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Image-denoising method based on wavelet packet transform and median filter

GAO Guo-wei,XIE Yuan-dan,WANG Yu(School of Computer Science and Engineering,Anshan University of Science and Technology,Anshan 114044,China)  
In the system of the online measuring of pellets diameters,the disturbed noises during the process of collecting pellets images are mainly impulse noise and white noise.The median filter may eliminate impulse noise but not white noise;the technology of wavelet pucket can primarily eliminate the white noise but not impulse noise.An image denosing method which combine wavelet packet transform with median filter used in the system of the online measuring of pellets diameters was presented.The experiment results show that the method is effective on denoising and satisfying with the requirement of pellets images in the following high level treatment.
【CateGory Index】: TP391.41
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