Robust Digital Watermarking Adopting Barcode in Image

A new barcode watermarking algorithm in Discrete Wavelet Transform (DWT) domain is proposed. The algorithm utilizes the visual masking and texture characteristics of Human Visual System (HVS) to achieve the invisible and robust requirements for watermarking. In addition, a barcode which consist vertical bars and numbers is taken as the watermark embedded into the host image. Numbers in the barcode were separated from the barcode by using DWT and enhanced before embedded. Thus the watermark scheme possesses more robustness and security. The experiment results show that the algorithm is robust to common digital image processing methods and the image´s quality is guaranteed.