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    • 38-Issue 7
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    • 38-Issue 7
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    Specular Highlight Removal for Real-world Images

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    Date
    2019
    Author
    Fu, Gang
    Zhang, Qing
    Song, Chengfang
    Lin, Qifeng
    Xiao, Chunxia
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    Abstract
    Removing specular highlight in an image is a fundamental research problem in computer vision and computer graphics. While various methods have been proposed, they typically do not work well for real-world images due to the presence of rich textures, complex materials, hard shadows, occlusions and color illumination, etc. In this paper, we present a novel specular highlight removal method for real-world images. Our approach is based on two observations of the real-world images: (i) the specular highlight is often small in size and sparse in distribution; (ii) the remaining diffuse image can be represented by linear com- bination of a small number of basis colors with the sparse encoding coefficients. Based on the two observations, we design an optimization framework for simultaneously estimating the diffuse and specular highlight images from a single image. Specif- ically, we recover the diffuse components of those regions with specular highlight by encouraging the encoding coefficients sparseness using L0 norm. Moreover, the encoding coefficients and specular highlight are also subject to the non-negativity according to the additive color mixing theory and the illumination definition, respectively. Extensive experiments have been performed on a variety of images to validate the effectiveness of the proposed method and its superiority over the previous methods.
    BibTeX
    @article {10.1111:cgf.13834,
    journal = {Computer Graphics Forum},
    title = {{Specular Highlight Removal for Real-world Images}},
    author = {Fu, Gang and Zhang, Qing and Song, Chengfang and Lin, Qifeng and Xiao, Chunxia},
    year = {2019},
    publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
    ISSN = {1467-8659},
    DOI = {10.1111/cgf.13834}
    }
    URI
    https://doi.org/10.1111/cgf.13834
    https://diglib.eg.org:443/handle/10.1111/cgf13834
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    Eurographics Association copyright © 2013 - 2023 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA