Efficient hybrid digital image watermarking

Abstract Nowadays, multimedia security is a major issue. Images, video, audio, and text files lose credibility in most times, because they face several attacks related to illegal distribution, duplication, manipulation of the information conveyed by them. Digital watermarking an important tool for protecting digital content. This paper introduces efficient hybrid image scheme. It consists two stages Singular Value Decomposition (SVD). The first one embedding stage, which performed using SVD followed block-based (B-SVD). second stage extraction depends on whole then B-SVD get original watermarks. In this scheme, requirements are satisfied, while capacity increased. Furthermore, watermark detection, robustness, improved. performance proposed scheme evaluated correlation coefficient C r between extracted watermarks, Peak Signal-to-Noise Ratio ( PSNR ) watermarked images. experimental results demonstrate that has good performance, where reaches 0.9975 45.8605. more secure than previous schemes, when subjected attacks. addition, compared recent revealing its superiority.