Research and application of the EAN-13 barcode recognition on iphone

Barcode is worldwide used, its popularity can be attested by its use in all parts of our life. Though the laser barcode scanner is very popular, yet it is lack of mobility. So we want a portable scanner as a substitute, without a doubt, iphone is a good choice. In this paper we present an algorithm for the EAN-13 barcode recognition on iphone. The algorithm can be divided into four parts: image pre-processing, edge detection, image segmentation and image decoding. Tests showing that in most light condition, this algorithm can extract the barcode with very high accuracy.