NSFCNational Natural Science Foundation of China (NSFC) [607731871, 60973154]; Ministry of Education, ChinaMinistry of Education, China [NCET-07-0338]
机构署名：
本校为其他机构
院系归属：
电气与电子工程学院
摘要：
Images often contain noise due to the capturing devices, environment and even human errors. For the image further processing, compression, fractal and so on, the image denoising is necessary. Wavelet analysis plays a very important role in the image denoising. In this paper, we improve the wavelet thresholding method by using multi-scale thresholds and a new thresholding function. Also, in case of large noise, a median filter is suggested to be used at last. Based on Lipschitz exponent and wavelet transform, we theoretically give the multi-scale thresholds. In order to obtain a better denoisin...
