期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2012
卷号：3
期号：3
页码：4392-4395
出版社：TechScience Publications
摘要：Digital watermarking is a process for modifying physical or electronic media to embed a machine-readable code into the media. The media may be modified such that the embedded code is imperceptible or nearly imperceptible to the user, yet may be detected through an automated detection process. Most commonly, digital watermarking is applied to media signals such as images, audio signals, and video signals. However, it may also be applied to other types of media objects, including documents (e.g., through line, word or character shifting), software, multi-dimensional graphics models, and surface textures of objects[1]. There are several algorithms used for watermarking like LSB Watermarking Technique, Spatial Domain & Frequency domain watermarking. In this paper we are using LSB Watermarking technique as it is robust and secure. In this project, we present a novel watermarking scheme, which allows inserting and reliably detecting multiple watermarks sequentially embedded into a digital image. The proposed method, based on embedding a preprocessed image by text as well as image watermarking, secure under projection attack and robust against distortion due to basic operations such as storage, transmission, and format conversion.
