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The digital TV filter and nonlinear denoising

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3 Author(s)
Chan, T.F. ; Dept. of Math., California Univ., Los Angeles, CA, USA ; Osher, S. ; Shen, J.

Motivated by the classical TV (total variation) restoration model, we propose a new nonlinear filter-the digital TV filter for denoising and enhancing digital images, or more generally, data living on graphs. The digital TV filter is a data dependent lowpass filter, capable of denoising data without blurring jumps or edges. In iterations, it solves a global total variational (or L1) optimization problem, which differs from most statistical filters. Applications are given in the denoising of one dimensional (1-D) signals, two-dimensional (2-D) data with irregular structures, gray scale and color images, and nonflat image features such as chromaticity

Published in:

Image Processing, IEEE Transactions on  (Volume:10 ,  Issue: 2 )

Date of Publication:

Feb 2001

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