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Proceedings Paper

Assessing the enhancement of image sharpness
Author(s): Samira Bouzit; Lindsay W. MacDonald
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Paper Abstract

This study investigated four different image sharpness enhancement methods. Two methods applied standard sharpening filters (Sharpen and Sharpen More) in PhotoShop and the other two were based on adjustment of the image power spectrum using the human visual contrast sensitivity function. A psychophysical experiment was conducted with 25 observers, the results of which are presented and discussed. Five conclusions are drawn from this experiment: (1) Performance of the sharpening methods; (2) Image dependence; (3) Influence of two different colour spaces on sharpness manipulation; (4) Correlation between perceived image sharpness and image preference; and (5) Effect of image sharpness enhancement on the image power spectrum.

Paper Details

Date Published: 17 January 2006
PDF: 10 pages
Proc. SPIE 6059, Image Quality and System Performance III, 605904 (17 January 2006); doi: 10.1117/12.642274
Show Author Affiliations
Samira Bouzit, Univ. of St. Andrews (United Kingdom)
Lindsay W. MacDonald, London College of Communication (United Kingdom)


Published in SPIE Proceedings Vol. 6059:
Image Quality and System Performance III
Luke C. Cui; Yoichi Miyake, Editor(s)

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