Enhanced visual perception through tone mapping

Andre Harrison; Linda L. Mullins; Adrienne Raglin; Ralph Etienne-Cummings

doi:10.1117/12.2230873

12 May 2016 Enhanced visual perception through tone mapping

Andre Harrison, Linda L. Mullins, Adrienne Raglin, Ralph Etienne-Cummings

Proceedings Volume 9851, Next-Generation Analyst IV; 98510U (2016) https://doi.org/10.1117/12.2230873
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

Tone mapping operators compress high dynamic range images to improve the picture quality on a digital display when the dynamic range of the display is lower than that of the image. However, tone mapping operators have been largely designed and evaluated based on the aesthetic quality of the resulting displayed image or how perceptually similar the compressed image appears relative to the original scene. They also often require per image tuning of parameters depending on the content of the image. In military operations, however, the amount of information that can be perceived is more important than the aesthetic quality of the image and any parameter adjustment needs to be as automated as possible regardless of the content of the image. We have conducted two studies to evaluate the perceivable detail of a set of tone mapping algorithms, and we apply our findings to develop and test an automated tone mapping algorithm that demonstrates a consistent improvement in the amount of perceived detail. An automated, and thereby predictable, tone mapping method enables a consistent presentation of perceivable features, can reduce the bandwidth required to transmit the imagery, and can improve the accessibility of the data by reducing the needed expertise of the analyst(s) viewing the imagery.

Citation Download Citation

Andre Harrison, Linda L. Mullins, Adrienne Raglin, and Ralph Etienne-Cummings "Enhanced visual perception through tone mapping", Proc. SPIE 9851, Next-Generation Analyst IV, 98510U (12 May 2016); https://doi.org/10.1117/12.2230873

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KEYWORDS

Time multiplexed optical shutter

High dynamic range imaging

Image quality

Algorithm development

Visualization

Image compression

Associative arrays

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