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Journal of Electronic Imaging

Measurement of the optimum surround ratio inducing the highest perceived image contrast
Author(s): Ye Seul Baek; Youn Jin Kim; Hong-suk Kim; Seung-ok Park
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Paper Abstract

Much research has shown that perceived image contrast increases as the surround luminance increases, but a number of recent studies reported opposite trends under higher surround luminance levels. We measured the change in perceived image contrast under a wide range of surround luminance levels covering from dark up to 2087 cd/m2. A large-area illuminator was used to illuminate the surround. It consists of 23 dimmable fluorescent lamps and a diffuser. Its maximum luminance is 2087 cd/m2 and could be adjusted to six lower levels. A set of paired comparison experiments was conducted to compare the perception of image contrast under seven different surround luminance levels. The results showed that the perceived image contrast varies with surround luminance and the maximum perceived image contrast is found near a surround ratio (SR) of 1. As SR increases from 0 to 1, the z score is increased, which can be fully expected by the Bartleson and Breneman effect. However, it is drastically decreased in the region of SR > 1; thus, the perceived image contrast is eventually decreased.

Paper Details

Date Published: 1 October 2010
PDF: 7 pages
J. Electron. Imag. 19(4) 043013 doi: 10.1117/1.3506735
Published in: Journal of Electronic Imaging Volume 19, Issue 4
Show Author Affiliations
Ye Seul Baek, Daejin Univ. (Korea, Republic of)
Youn Jin Kim, Samsung Electronics Co., Ltd. (Korea, Republic of)
Hong-suk Kim, Daejin Univ. (Korea, Republic of)
Seung-ok Park, Daejin Univ. (Korea, Republic of)

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