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Hadizadeh, Hadi; Bajic, Ivan V.
IEEE transactions on multimedia, 2018-Feb., 2018-2-00, Volume: 20, Issue: 2Journal Article
In this paper we present a novel method for full-reference image quality assessment (IQA) of tone-mapped images displayed on standard low dynamic range (LDR) displays. Due to the dynamic range compression caused by the tone-mapping process a mixture of several artifacts and distortions may be produced in the tone-mapped images. This makes the quality assessment of the tone-mapped images very challenging. Due to the diversity of such artifacts and distortions we propose a "bag of features" (BOF) approach to tackle this problem. Specifically in the proposed method a number of different perceptually relevant quality-related features are first extracted from a given tone-mapped image and its reference HDR image. These features are designed such that they capture different aspects and attributes of the tone-mapped image such as its structural fidelity naturalness and overall brightness. A support vector regressor is then trained based on the extracted features and it is used for measuring the visual quality of a tone-mapped image. Our experimental results indicate that the proposed method achieves high accuracy as compared to several existing methods.
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