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长春光学精密机械与物... [1]
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会议论文 [1]
发表日期
2009 [1]
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The deviation of color matching algorithm in the field of full-color LED display (EI CONFERENCE)
会议论文
2009 2nd International Congress on Image and Signal Processing, CISP'09, October 17, 2009 - October 19, 2009, Tianjin, China
Hao Y.-R.
;
Wang Y.
;
Zhang X.
;
Wang R.-G.
;
Chen Y.
;
Ding T.-F.
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浏览/下载:13/0
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提交时间:2013/03/25
In this paper
a color gamut transformation method which transformed the different color gamut into a same one has been proposed. In the transforming process
the deviation which was arose from the quantization error and the truncation error were existing. If the deviation was out of the color tolerance
the uniformity of the screen color will be deteriorated. Firstly
the color tolerance of vision was calculated by the color-difference formula. Secondly
in the full-color LED display experiments
it was analyzed that the tri -color tolerance values are respectively 2.5
2.8 and 1.3. According to the tri -color tolerance values and the color difference formula
the express of the quantization precision
gray value and the color difference was set up. Finally the gray-scale range of the color uniformity was analyzed by the collected data
it was concluded that the uniformity of the display was satisfied the requirement of the visual when the range of the gray level was [11
14]
and when the range was [1
11]
the value of the color difference was also reduced significantly. 2009 IEEE.
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