Based On Two-dimensional Bar Code Qr Code Encoding And Image Processing Technology,

With the rapid development of information technology, bar code is usedwidely in the various fields of social life, and it greatly enhances the workefficiency of every industry. Bar code identification technology is acomprehensive technology based on computer technology, informationtechnology and photoelectric sensing technology. It now becomes veryimportant mean of data automatic inputting and identification. At present, twodimensional bar code technologies has become the mainstream in the bar codetechnology field. There are several kinds of two dimensional bar code is beingused in the world, QR Code become commonly used bar code technologybecause its advantage such as fastly identification and omnidirectional readingability. This paper will select QR code as researching object.The task of this paper is based on the standard of two dimensional bar codesystem to realize the information encoding which, and adopt image processingtechnology to revise the two-dimension al code, make the bar code speedily andaccurately identify. The purpose of this paper is to encode information data andusing C++to realize it by analyzing the symbol structure of QR Code and theencoding rules; it puts forward an effective algorithm of QR Code binarizationto eliminate the effect of non-uniform illumination; and adopt an improvedCanny operator and Hough algorithm for edge detection and barcodelocation;finally,use interpolation algorithm on image correction, make the barcode speedily and accurately identify.