On the visualization of tetrachromatic images

17 March 2015 On the visualization of tetrachromatic images

Alfredo Restrepo, Edisson Maldonado

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Proceedings Volume 9394, Human Vision and Electronic Imaging XX; 939411 (2015) https://doi.org/10.1117/12.2077125
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

How can a normal trichromat person attempt to see a tetrachromatic image? We propose 2 techniques, both of which use the time dimension. This makes it difficult to use the techniques to visualise tetrachromatic videos so, we deal here only with the visualisation of tetrachromatic (static) images. In one of the visualisation techniques we use "movies" (as in a Matlab movie) made of frames that are trichromatic renderings of tetrachromatically-processed versions of the tetrachromatic image to be visualised, where a parameter in 4-Runge¹ space varies across the versions. In the other technique, we give a "dynamic texture" to regions of pixels having a UV or, alternatively an IR component. The texture can be for example a superposed "granularity" (texture) that "vibrates" in time, where the density of the grains depends on the amount of UV (or NIR) present in the tetrachromatic colour.

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Alfredo Restrepo and Edisson Maldonado "On the visualization of tetrachromatic images", Proc. SPIE 9394, Human Vision and Electronic Imaging XX, 939411 (17 March 2015); https://doi.org/10.1117/12.2077125

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KEYWORDS

Visualization

Ultraviolet radiation

RGB color model

Video

Near infrared

Optical spheres

Image processing

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