随着LED显示屏的大规模投入使用,对于LED显示屏显示的质量要求越来越高. 显示的校正早已在LCD液晶显示器中普遍使用,而LED显示还处于初级发展阶段,LED显示屏的校正也还处在初级阶段,LED显示屏是由一个一个LED灯管组成,由于每个LED灯管出厂时显示特性几乎都不一样,而且相差很大,就显示亮度而言差异可以达到30%;所以LED的校正会明显提升LED显示屏的显示效果. 文中提出了一种基于纹理的LED灯点定位算法,并提出了一整套的校正系数处理办法,以提高校正精度. 最后对整个算法进行了实验分析、论证. 文中对亮度非均匀性约为15%的LED屏进行了校正,校正后显示屏的亮度非均匀性降低到了4. 1%,显示效果提升很明显.%Along with the large-scale use of LED,the demand of LED display high quality is increasing. The display rectification has commonly used in the LCD display,the LED is still in the primary stage of rectification system,the LED screen is composed of many RGB tube,since the display characteristics of each LED screen RGB tube is almost different,and varies greatly,the tube''s brightness of display differences can reach 30%. So LED rectification system is very important,it can improve LED display quality obviously. Present a LED lamp location algorithm based on texture in this paper,and put forward a rectification coefficient approach set to improve the accu-racy of rectifying. Finally the whole algorithm is analyzed and demonstrated. The brightness differency of approximately 15% LED screen is corrected,the differency has been reduced to 4. 1% after the brightness rectification system,the display effect is increased obviously.
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