QR Two-dimensional Barcode Recognition Technology Research Based On Image Processing

With development of information technology,fast storage and identification technologies have emerged.As a two-dimensional bar code information capacity,high reliability,confidentiality and good rapid development of automatic identification technology,QR codes as a fast and efficient coding and decoding technology,based on computer image processing,the high information density recognition technology is relatively complex,has become the focus of research in the field.The main task of this paper is based on image processing QR code recognition technology to achieve accurate QR code feature extraction and recognition,the main contents of this paper envelope :Firstly,through a lot of literature research,describes the principles of two-dimensional bar code development and application analyzer encoding and decoding,provide a theoretical basis for computer image processing;Secondly,through the barcode image processing technology analysis,by the image denoising,correction and gray scale processing,making the QR code image decoding system in line with the identification requirements,to achieve full recognition of the QR code to improve its recognition speed and efficiency.Finally,the process of decoding the QR code and the analysis step,described in detail in the decoding process of the decoding algorithm,the algorithm and the error correction decoding process.