Application of Wiener Filter to Suppress White Noise in Images: Wavelet vs Fourier Basis

Abstract

A method for suppressing additive white noise in images based on Wiener filtering in the domain of discrete wavelet transform (DWT) is proposed. The method outperforms such traditional methods as "hard" and "soft" DWT thresholding. Having less computational complexity, the proposed method shows the results of denoising similar to Wiener filtering in the frequency domain.