A Robust and Secure Image Watermarking Technique for Digital Data: State-of-the-Art

Abstract-With the fast development of computer technology, research in the fields of multimedia (text, image, audio and video clip) security, image processing and robot vision have recently become popular. Digital image watermarking techniques is one of the best techniques for image authentication. Watermarking algorithms are designed to embed and extract digital watermarks within digital content, such as images, audio, or video. The basic objective of the watermarking technique is to enhance imperceptibility, capacity and robustness. When developing an effective watermark method, it’s necessary to have a highly balanced trade-off between imperceptibility, capacity, and robustness. In this paper we presence about watermarking system, requirements for digital image watermarking, challenging issue of watermarking, application of watermarking, importance of watermarking, image watermarking classification, various watermarking techniques, attacks on watermarking process, performance measure for evaluating the image quality using metrics and a short view of watermarking tools. The work gives a view on various watermarking schemes in digital images that give new ideas to improve the already existing techniques.