
Proceedings Paper
Identification of image attributes that are most affected with changes in displayed image sizeFormat | Member Price | Non-Member Price |
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Paper Abstract
This paper describes an investigation of changes in image appearance when images are viewed at different image sizes
on a high-end LCD device. Two digital image capturing devices of different overall image quality were used for
recording identical natural scenes with a variety of pictorial contents. From each capturing device, a total of sixty four
captured scenes, including architecture, nature, portraits, still and moving objects and artworks under various
illumination conditions and recorded noise level were selected. The test set included some images where camera shake
was purposefully introduced. An achromatic version of the image set that contained only lightness information was
obtained by processing the captured images in CIELAB space. Rank order experiments were carried out to determine
which image attribute(s) were most affected when the displayed image size was altered. These evaluations were carried
out for both chromatic and achromatic versions of the stimuli. For the achromatic stimuli, attributes such as contrast,
brightness, sharpness and noisiness were rank-ordered by the observers in terms of the degree of change. The same
attributes, as well as hue and colourfulness, were investigated for the chromatic versions of the stimuli. Results showed
that sharpness and contrast were the two most affected attributes with changes in displayed image size. The ranking of
the remaining attributes varied with image content and illumination conditions. Further, experiments were carried out to
link original scene content to the attributes that changed mostly with changes in image size.
Paper Details
Date Published: 19 January 2009
PDF: 10 pages
Proc. SPIE 7242, Image Quality and System Performance VI, 724210 (19 January 2009); doi: 10.1117/12.805844
Published in SPIE Proceedings Vol. 7242:
Image Quality and System Performance VI
Susan P. Farnand; Frans Gaykema, Editor(s)
PDF: 10 pages
Proc. SPIE 7242, Image Quality and System Performance VI, 724210 (19 January 2009); doi: 10.1117/12.805844
Show Author Affiliations
Jae Young Park, Univ. of Westminster (United Kingdom)
Sophie Triantaphillidou, Univ. of Westminster (United Kingdom)
Sophie Triantaphillidou, Univ. of Westminster (United Kingdom)
Ralph E. Jacobson, Univ. of Westminster (United Kingdom)
Published in SPIE Proceedings Vol. 7242:
Image Quality and System Performance VI
Susan P. Farnand; Frans Gaykema, Editor(s)
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