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http://dx.doi.org/10.6109/jkiice.2010.14.7.1708

Development of the Full color LED displays using the control algorithm of histogram distribution  

Ha, Young-Jae (순천향대학교 정보통신공학과 대학원)
Jin, Byung-Yun (순천향대학교 정보통신공학과 대학원)
Kim, Sun-Hyung (순천향대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.14, no.7, 2010 , pp. 1708-1714 More about this Journal
Abstract
In this paper, the full color LED billboard or a general quality improvement methods of quality gamma correction, brightness, and brightness adjustment, etc., regardless of the overall color of images uniformly bright or dark have been taken care of. The video itself, but simply expressed as a uniform brightness of a certain size, how to adjust the brightness of input video signal does not reflect the characteristics of the entire screen with just a lighter or darker line is only feeling was brought. So, unlike conventional video transmission system with new LED display technology in the histogram analysis of image data is input by the input image data by determining the luminance values of the attributes are reflected, as appropriate based on the histogram of the distribution of brightness values By controlling the LED display is expressed in the uniform image can improve the brightness control, histogram distribution of the image as full color billboards driven processing technology is proposed.
Keywords
Billboard; LED video modules; controllers; image correction controller;
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