基于照相的LED显示屏亮度校正方法  

Brightness Correction Method of LED Display Based on Photographing

作　　者：阮海蓉[1] 夏贵勇 

机构地区：[1]襄樊学院物理与电子工程学院,湖北襄阳441053 [2]襄樊新瑞光电子有限公司,湖北襄阳441002

出　　处：《液晶与显示》2012年第2期193-197,共5页Chinese Journal of Liquid Crystals and Displays

摘　　要：像素亮度的一致性是LED显示屏的重要指标。对于像素亮度一致性不理想的LED显示屏,对其照相获得包含亮度信息的图像文件,再经计算机进行背景去噪、像素定位、亮度信息提取,得到亮度数据文件,最后通过计算及数据库处理,生成Excel亮度校正文件。Excel格式的亮度校正文件,可以方便地送到主流LED显示屏控制器中进行逐点校正,有效地改善LED显示屏的视觉效果。Consistency of pixel brightness is an important index for LED display.For LED display with un-ideal consistency of pixel brightness,to get pictures file including brightness information by taking photograph,via computer,background can be de-noised,pixel can be positioned,and even information about brightness can be obtained,thus getting file about brightness data,and finally,handled by computer and database,the Excel brightness corrected file will be made.The brightness file corrected in Excel format can be convenient to deliver to the controller of LED display where it will be corrected point by point.In this way,the visual effect of LED display could be greatly improved.

关 键 词：LED显示屏 亮度校正 逐点校正 照相 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]