Automatic saturation correction for dynamic range management algorithms

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Date

2018-04-01

Author

Artusi, Alessandro
POULİ, Tania
BANTERLE, Francesco
Akyüz, Ahmet Oğuz

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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High dynamic range (HDR) images require tone reproduction to match the range of values to the capabilities of a display. For computational reasons and given the absence of fully calibrated imagery, rudimentary color reproduction is often added as a post-processing step rather than integrated into tone reproduction algorithms. In the general case, this currently requires manual parameter tuning, and can be automated only for some global tone reproduction operators by inferring parameters from the tone curve. We present a novel and fully automatic saturation correction technique, suitable for any tone reproduction operator (including inverse tone reproduction), which exhibits fewer distortions in hue and luminance reproduction than the current state-of-the-art. We validated its comparative effectiveness through subjective experiments and objective metrics. Our experiments confirm that saturation correction significantly contributes toward the perceptually plausible color reproduction of tonemapped content and would, therefore, be useful in any color-critical application.

Subject Keywords

Inverse/reverse tonemapping, Tonenapping, Gamut mapping, Color correction, High dynamic range imaging

URI

https://hdl.handle.net/11511/46836

Journal

SIGNAL PROCESSING-IMAGE COMMUNICATION

DOI

https://doi.org/10.1016/j.image.2018.01.011

Collections

Department of Computer Engineering, Article

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Citation Formats

A. Artusi, T. POULİ, F. BANTERLE, and A. O. Akyüz, “Automatic saturation correction for dynamic range management algorithms,” SIGNAL PROCESSING-IMAGE COMMUNICATION, pp. 100–112, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46836.