Chapter 15: Estimation of Noise in Gray-Scale and Colored Images Using Median Absolute Deviation (MAD)

Authors:
Hassan H. Khalil;Rahmita O. K. Rahmat;Waleed A. Mahmoud
Affiliations:
-;-;-
Venue:
GMAI '08 Proceedings of the 2008 3rd International Conference on Geometric Modeling and Imaging
Year:
2008

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A design framework for hybrid approaches of image noise estimation and its application to noise reduction

Journal of Visual Communication and Image Representation

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Abstract

This paper presents a new algorithm for estimation of noise (i.e., level of noise) in both Gray-Scale and Color Images (GSI, CI). The new technique is called Median-Absolute Deviation (MAD). This technique does require an explicit estimation of the noise level or the Signal to Noise ratio (SNR), which is usually needed in most of the popular enhancement methods. Performance of the proposed method is evaluated on noisy images in real conditions and with artificial noise.