Improving Iterative Retinex Algorithm for Dynamic Range Compression

DOI

10.2991/iccia.2012.224How to use a DOI?

Keywords

iterative Retinex algorithm, anisotropic diffusion, dynamic range compression

Abstract

In this paper, the iterative Retinex algorithm is improved to handle dynamic range compression problems. Based on the analysis of the McCann-Sobel algorithm, the iterative smoothing operation can be interpreted as an asymmetric diffusion. In order to characterized the sharp discontinuities in illumination, an edge-stopping function is introduced into the iterative procedure, which is inspired by anisotropic diffusion. Using the improved illumination estimator, dynamic range of images can be arbitrarily manipulated while suppressing undesirable artifacts. Experiments show that the proposed algorithms outperforms several derivatives for dynamic range compression based on the iterative Retinex.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shengdong Pan
AU  - Xiangjing An
AU  - Hongtao Xue
AU  - Hangen He
PY  - 2014/05
DA  - 2014/05
TI  - Improving Iterative Retinex Algorithm for Dynamic Range Compression
BT  - Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
PB  - Atlantis Press
SP  - 922
EP  - 925
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccia.2012.224
DO  - 10.2991/iccia.2012.224
ID  - Pan2014/05
ER  -