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A Psychophysical Evaluation of Inverse Tone Mapping Techniques.

By F. Banterle, P. Ledda, K. Debattista, Marina Bloj, A. Artussi and A. Chalmers


noIn 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

Topics: Inverse Tone Mapping, High dynamic range imaging, Psychophysical evaluation
Year: 2009
DOI identifier: 10.1111/j.1467-8659.2008.01176.x
OAI identifier:
Provided by: Bradford Scholars
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