Handbook of Image and Video Processing, 2nd Edition

3.4

Wavelet Denoising for Image Enhancement

Dong Wei,     SBC Laboratories, Austin, Texas

Umesh Rajashekar and Alan C. Bovik,     The University of Texas at Austin

1 Introduction

2 Wavelet Shrinkage Denoising

2.1 The Discrete Wavelet Transform

2.2 The Donoho-Johnstone Method

2.3 Shift-Invariant Wavelet Shrinkage

3 Image Enhancement via Wavelet Shrinkage

3.1 Suppression of Additive Noise

3.2 Removal of Blocking Artifacts in DCT-Coded Images

4 Examples

4.1 Gaussian Noise

4.2 Blocking Artifacts

5 Image Denoising Using Natural Scene Statistics

5.1 Denoising Using Models for Marginal Distributions of Wavelet Coefficients

5.2 Denoising Using the Gaussian Scale Mixture Model for Wavelet Coefficients

6 Summary

References

1 Introduction ...