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    Volume 46, Issue 5 (September 2018)

    DNT-Based Image Illumination Refinement System with Concurrent Copyright Embedding

    (Received 14 December 2016; accepted 26 April 2017)

    Published Online: 2018

    CODEN: JTEVAB

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    Abstract

    Media archiving is the process of transforming a source to its digital form. This process, however, often leads to the irregular distribution of image illumination, which distorts the content of images. In this article, we propose a hybrid illumination technique based on double Niblack thresholds (DNT-based) to refine the brightness of underexposed and overexposed images, including the text image and the text-photo image. In particular, we introduce the watermarking concept to the transformation so that the improver can demonstrate the copyright of this refinement in the future. Experimental results have shown that the new method can effectively adjust the illumination to improve the quality of digital images without influencing the appended watermark.

    Author Information:

    Lee, Jung-San
    Department of Information Engineering and Computer Science, Feng Chia University, Seatwen, Taichung, Taiwan

    Wang, Yi-Hua
    Department of Information Engineering and Computer Science, Feng Chia University, Seatwen, Taichung, Taiwan


    Stock #: JTE20160640

    ISSN:0090-3973

    DOI: 10.1520/JTE20160640

    Author
    Title DNT-Based Image Illumination Refinement System with Concurrent Copyright Embedding
    Symposium ,
    Committee E30