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Paintings, photographs, and computer graphics are calculated appearances
Author(s): John McCann
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Paper Abstract

Painters reproduce the appearances they see, or visualize. The entire human visual system is the first part of that process, providing extensive spatial processing. Painters have used spatial techniques since the Renaissance to render HDR scenes. Silver halide photography responds to the light falling on single film pixels. Film can only mimic the retinal response of the cones at the start of the visual process. Film cannot mimic the spatial processing in humans. Digital image processing can. This talk studies three dramatic visual illusions and uses the spatial mechanisms found in human vision to interpret their appearances.

Paper Details

Date Published: 20 February 2012
PDF: 9 pages
Proc. SPIE 8291, Human Vision and Electronic Imaging XVII, 829114 (20 February 2012); doi: 10.1117/12.914967
Show Author Affiliations
John McCann, McCann Imaging (United States)


Published in SPIE Proceedings Vol. 8291:
Human Vision and Electronic Imaging XVII
Bernice E. Rogowitz; Thrasyvoulos N. Pappas; Huib de Ridder, Editor(s)

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