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Evaluation of contrast metrics for liquid‐crystal displays under different viewing conditions
Author(s) -
Lu Weige,
Xu Haisong,
Luo M. Ronnier
Publication year - 2012
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid20.5.259
Subject(s) - contrast (vision) , liquid crystal display , computer science , brightness , artificial intelligence , preprocessor , computer vision , just noticeable difference , contrast ratio , viewing angle , color difference , optics , physics , enhanced data rates for gsm evolution , operating system
— A psychophysical experiment was carried out to assess the perceptual contrast on a large‐sized liquid‐crystal display (LCD) under nine phases of viewing conditions. Based on the results, six contrast models employing different color attributes or the index of just‐noticeable difference (JND) were developed. Their performances were also tested by the visual data of the nine phases, which indicated that the model C Q employing CIECAM02 brightness gives the best performance in predicting visual data under different viewing conditions among those models. A preprocessing step was also proposed to utilize the contrast model C Q conveniently in the practical contrast evaluation of LCDs.