Information Hiding Algorithm Based on PDF417 Barcode
Zhiyou Wang · Jisuanji gongcheng · 2010
Aiming at shortages of little capacity of embedded information,bad robustness and low secrecy for existing hiding algorithm,this paper proposes an improved information hiding algorithm based on PDF417 barcode.The algorithm goes on spread spectrum and map hiding information,according to self-structure feature of PDF417,and then information is hidden into micro-barcode by modifying the configuration of bar and space.Experimental results show that this algorithm had better extraction ratio to attack of printing scan and damage.