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    Patch-Based Colour Transfer with Optimal Transport

    Alghamdi, Hana and Grogan, Mairéad and Dahyot, Rozenn (2019) Patch-Based Colour Transfer with Optimal Transport. 2019 27th European Signal Processing Conference (EUSIPCO). ISSN 2076-1465

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    This paper proposes a new colour transfer method with Optimal transport to transfer the colour of a source image to match the colour of a target image of the same scene. We propose to formulate the problem in higher dimensional spaces (than colour spaces) by encoding overlapping neighborhoods of pixels containing colour information as well as spatial information. Since several recoloured candidates are now generated for each pixel in the source image, we define an original procedure to efficiently merge these candidates which allows denoising and artifact removal as well as colour transfer. Experiments show quantitative and qualitative improvements over previous colour transfer methods. Our method can be applied to different contexts of colour transfer such as transferring colour between different camera models, camera settings, illumination conditions and colour retouch styles for photographs

    Item Type: Article
    Keywords: optimal transport; colour transfer; image enhancement; JPEG compression blocks;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 15252
    Identification Number:
    Depositing User: Rozenn Dahyot
    Date Deposited: 17 Jan 2022 16:40
    Journal or Publication Title: 2019 27th European Signal Processing Conference (EUSIPCO)
    Publisher: IEEE
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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