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    A multichannel total variational Retinex model based on nonlocal differential operators

    Access Status
    Fulltext not available
    Authors
    Zhao, R.
    Pan, H.
    Hou, G.
    Liu, Wan-Quan
    Huang, B.
    Zheng, S.
    Date
    2018
    Type
    Conference Paper
    
    Metadata
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    Citation
    Zhao, R. and Pan, H. and Hou, G. and Liu, W. and Huang, B. and Zheng, S. 2018. A multichannel total variational Retinex model based on nonlocal differential operators.
    Source Title
    Proceedings of SPIE - The International Society for Optical Engineering
    DOI
    10.1117/12.2303547
    ISBN
    9781510617414
    School
    School of Electrical Engineering, Computing and Mathematical Science (EECMS)
    URI
    http://hdl.handle.net/20.500.11937/69046
    Collection
    • Curtin Research Publications
    Abstract

    © 2018 SPIE. Characteristics of restoration image such as smoothness, edge and texture, can be better maintained using non-local differential operator. In this paper, we present a nonlocal multichannel total variational (MTV) model for Retinex theory, which can be solved by a fast computational approach based on the alternating direction method of multipliers (ADMM). Experiential results show that our nonlocal MTV method has a good performance on contrast enhancement, non-uniform illumination elimination, noise suppression, and especially for texture preserving. Furthermore, several variational Retinex method are compared to prove that our proposed method achieves more accurate and fewer iterations for recovering the reflectance.

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