A Method for Locating Reading Area of Digital Instrument Based on Color Characteristics

摘要

The goal of this work is to solve the positioning problems of the digital meter reading area under complicated background. This paper starts with the basic principles and methods of digital image processing, uses a special grayscale empirical algorithm to locate the LCD screen by analyzing the color characteristics of the LCD screen. Experiments on the actual pictures show that the proposed algorithm has good adaptability to most kinds of digital instruments with complicated dial information and effectively solves the positioning problems of the LCD screen, and positioning accuracy.