Study on CCD Image Denoising Method Based on Multiscale Correlation in Wavelet Domain
Xiaoyong Wang · Bandaoti guangdian · 2008
In view of different properties of signal and noise in wavelet transformation,an image denoising method based on multiscale correlation in wavelet domain is given.The cumulative histogram of multiscale correlation in wave domain is calculated in this method.The threshold is determined by means of the cumulative histogram.Wave coefficients at each scale are shrinked using an improved thresholding function.Experiments show that this method can both remove the noise and preserve the significant details.