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.

Date Published: 17 March 2015
PDF: 13 pages
Proc. SPIE 9394, Human Vision and Electronic Imaging XX, 939411 (17 March 2015); doi: 10.1117/12.2077125

Published in SPIE Proceedings Vol. 9394:
Human Vision and Electronic Imaging XX
Bernice E. Rogowitz; Thrasyvoulos N. Pappas; Huib de Ridder, Editor(s)