Brightness Correction Method of LED Display Based on Photographing

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.