Journal ArticleDOI
A psychophysical evaluation of inverse tone mapping techniques
Francesco Banterle,Patrick Ledda,Kurt Debattista,Marina Bloj,Alessandro Artusi,Alan Chalmers +5 more
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TLDR
A psychophysical study is presented to evaluate the performance of inverse (reverse) tone mapping algorithms and to investigate if a high level of complexity is needed and if a correlation exists between image content and quality.Abstract:
In recent years inverse tone mapping techniques have been proposed for enhancing low-dynamic range (LDR) content for a high-dynamic range (HDR) experience on HDR displays, and for image based lighting. In this paper, we present a psychophysical study to evaluate the performance of inverse (reverse) tone mapping algorithms. Some of these techniques are computationally expensive because they need to resolve quantization problems that can occur when expanding an LDR image. Even if they can be implemented efficiently on hardware, the computational cost can still be high. An alternative is to utilize less complex operators; although these may suffer in terms of accuracy. Our study investigates, firstly, if a high level of complexity is needed for inverse tone mapping and, secondly, if a correlation exists between image content and quality. Two main applications have been considered: visualization on an HDR monitor and image-based lighting.read more
Citations
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HDR image reconstruction from a single exposure using deep CNNs
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Special Section on Advanced Displays: A survey on computational displays: Pushing the boundaries of optics, computation, and perception
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Evaluation of reverse tone mapping through varying exposure conditions
TL;DR: It is shown that current rTMO approaches fall short when the input image is not exposed properly, and proposed a method to automatically set a suitable gamma value for each image, based on the image key and empirical data, which enhances visible details without causing artifacts in incorrectly-exposed regions.
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High Dynamic Range Imaging and Low Dynamic Range Expansion for Generating HDR Content
Francesco Banterle,Kurt Debattista,Alessandro Artusi,Alessandro Artusi,Sumanta Pattanaik,Karol Myszkowski,Patrick Ledda,Alan Chalmers +7 more
TL;DR: The goal of this report is to provide a comprehensive overview on HDR Imaging, and an in depth review on these emerging topics.
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Proceedings ArticleDOI
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