In this paper, we introduce a new digital watermarking algorithm using least significant bit (LSB). LSB is used because of its little effect on the image. This new algorithm is using LSB by inversing the binary values of the watermark text and shifting the watermark according to the odd or even number of pixel coordinates of image before embedding the watermark. The proposed algorithm is flexib...

Digital watermarking has attained a position of overwhelming interest in image processing research as a new method of protecting multimedia content from unauthorized copying, as the informal transmission and manipulation of digital data creates intimidation for inventors and providers. This paper presents a new watermarking system employing five bit LSB strategy for copyright protection of imag...

due to high speed computer networks, the use of digitally formatted data has increased many folds.the digital data can be duplicated and edited with great ease which has led to a need for effectivecopyright protection tools. digital watermarking is a technology of embedding watermark withintellectual property rights into images, videos, audios and other multimedia data by a certainalgorithm .di...

Thanks to their huge expressive capability, coupled with the widespread use of the Internet and of affordable and high quality cameras and computers, digital multimedia represent nowadays one of the principal means of communication. Besides the many benefits, the wide proliferation of such contents has lead to problematic issues regarding their authenticity and security. To cope with such probl...

Rapid development in computer technology makes images, audio, text and video can be more easily reproduced, processed and stored in digital devices. Digital watermarking is a technique which allows an individual to add hidden copyright notices or other verification messages to digital audio, video, or image and documents. In this paper the concept of color image watermarking technique is perfor...

Template and database are critical parts of biometric systems. Attacker usually afflict biometric template. There can be various attacks on different modules of biometrics system and communication links among them. Securing templates from these attacks have become very important or imperative issue. Security is achieved by methods of cryptography, which deals with encryption of data. Encryption...

This paper presents a novel digital watermarking framework using electrocardiograph (ECG) and demographic text data as double watermarks. It protects patient medical information and prevents mismatching diagnostic information. The watermarks are embedded in selected texture regions of a PET image using multi-resolution wavelet decomposition. Experimental results show that modifications in these...

Print-scan resilient watermarking has emerged as an attractive way for document security. This paper proposes a stroke direction modulation technique for watermarking in Chinese text images. The watermark produced by the idea offers robustness to print-photocopyscan, yet provides relatively high embedding capacity without losing the transparency. During the embedding phase, the angles of rotata...

This paper presents the virtual speech cuer built in the context of the ARTUS project aiming at watermarking hand and face gestures of a virtual animated agent in a broadcasted audiovisual sequence. For deaf televiewers that master cued speech, the animated agent can be then superimposed on demand and at the reception on the original broadcast as an alternative to subtitling. The paper presents...

In order to support a more self-motivated and stretchy communication between the learner and the system or and the tutor, two category of agents are integrated. In this paper, the type of physically challenged learner has taken for consideration is a sightless learner. Since emotions play an important role in cognitive processes and specially in learning tasks adaptive agent is integrated with ...