A novel technique for LED dot-matrix text detection and recognition for non-uniform color system

Abstract

Nowadays, LED dot matrix has increasingly role in many application areas to showing messages and contents. These messages contain various characters to display the message. A single character is displayed by a matrix containing a particular number of rows and columns. By combining a number of characters we displayed any message on LED display board. The message shown with the help of LED is the LED text. The LED text is very hard to detect because it shows discontinuity. This paper proposed a method to solve the problem of LED text detection and recognition. To perform the method we need to extract the board region from natural image. The work is developed by firstly inputting an image. The input image is then processed to convert the colors to gray-scale. Then, the image is segmented to extract the rectangular region. From this paper we can detect even a single character with single character extraction method. This paper recognized the characters with 88.57% accuracy.