JIANG Jie, DENG Qiong, ZHANG Guang-Jun. Regularization algorithm for blind image restoration based on wavelet transform[J]. Optics and precision engineering, 2007, 15(4): 582-586.
JIANG Jie, DENG Qiong, ZHANG Guang-Jun. Regularization algorithm for blind image restoration based on wavelet transform[J]. Optics and precision engineering, 2007, 15(4): 582-586.DOI:
A wavelet based adaptive regularization scheme for blind image restoration is presented. The degraded image is decomposed to obtain its wavelet coefficients in wavelet domain
and the image’s different frequency sub-bands are obtained also. Then
different adaptive regularization image restoration schemes are used in different sub-bands: removing blur in the low frequency sub-bands
while reducing noise and preserving edges in the high frequency sub-bands
and the algorithm finally obtains a restored image by adverse transforming. The experiments show that the MSE has a reduction of 1.60
while the SNR is increased by 1.76. It demonstrates that the blind image restoration method is more efficient compared with traditional space-adaptive regularization method.