Journal
IEEE TRANSACTIONS ON MULTIMEDIA
Volume 20, Issue 2, Pages 392-404Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMM.2017.2740023
Keywords
Image quality assessment (IQA); image naturalness; natural scene statistics; structural fidelity; tone mapping
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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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