An Image De-Noising Method Using Directions of Wavelet Decomposition Sub-Bands

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In this paper, an image de-noising method using directions of wavelet decomposition sub-bands is proposed. Wavelet coefficients are correlated in a small area, and the wavelet transform uses wavelet coefficients in three directions to describe image information, so in each sub-band the proposed method only calculates neighboring wavelet coefficients in a certain direction rather than in eight directions. Compared with other wavelet de-noising methods, the proposed method can achieve higher peak signal to noise ratio.

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3058-3061

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October 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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