Improvement of low gray-level linearity using perceived luminance of human visual system in PDP-TV

One of the factors deteriorating the image quality of PDP-TV is the low gray-level contour occurring mainly due to inverse gamma correction. From the viewpoint of human visual perception, the low gray-level contour becomes more serious because of the nonlinear output luminance of PDP at low gray-lev...

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Bibliographic Details
Published in:IEEE transactions on consumer electronics 2005-02, Vol.51 (1), p.204-209
Main Authors: Kang, Sung-Jin, Do, Hyun-Chul, Cho, Byung-Gwon, Chien, Sung-Il, Tae, Heung-Sik
Format: Article
Language:English
Subjects:
Cathode ray tubes
Deterioration
Electronics
Human
Humans
Image converters
Image quality
Inverse
Linearity
Linearization techniques
Luminance
Nonlinear distortion
Plasma displays
Shape
Visual perception
Visual system
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Summary:One of the factors deteriorating the image quality of PDP-TV is the low gray-level contour occurring mainly due to inverse gamma correction. From the viewpoint of human visual perception, the low gray-level contour becomes more serious because of the nonlinear output luminance of PDP at low gray-levels. In this paper, a modified inverse gamma correction method and a gray-level linearization technique considering human visual perception are proposed for enhancing image quality at low gray-levels.
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2005.1405721