Image and Video based double watermark extraction spread spectrum watermarking in low variance region
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2013, Vol 4, Issue 6
Abstract
Digital watermarking plays a very important role in copyright protection. It is one of the techniques which are used for safeguarding the origins of the image, audio and video by protecting it against Piracy. This paper proposes a low variance based spread spectrum watermarking for image and video in which the watermark is obtained twice in the receiver. The watermark to be added is a binary image of comparatively smaller size than the Cover Image. Cover Image is divided into number of 8x8 blocks and transform into frequency domain using Discrete Cosine Transform. A gold sequence is added as well as subtracted in each block for each watermark bit. In most cases, researchers has generally used algorithms for extracting single watermark and also it is seen that finding the location of the distorted bit of the watermark due to some attacks is one of the most challenging task. However, in this paper the same watermark is embedded as well as extracted twice with gold code without much distortion of the image and comparing these two watermarks will help in finding the distorted bit. Another feature is that as this algorithm is based on embedding of watermark in low variance region, therefore proper extraction of the watermark is obtained at a lesser modulating factor. The proposed algorithm is very much useful in applications like real-time broad casting, image and video authentication and secure camera system. The experimental results show that the watermarking technique is robust against various attacks.
Authors and Affiliations
Mriganka Gogoi, Koushik Mahanta, H. M. Bhuyan, Dibya Das, Ankita Dutta
Keywords
Related Articles
- EP ID EP146355
- DOI 10.14569/IJACSA.2013.040615
- Views 86
- Downloads 0
D-MFCLMin: A New Algorithm for Extracting Frequent Conceptual Links from Social Networks
Massive amounts of data in social networks have made researchers look for ways to display a summary of the information provided and extract knowledge from them. One of the new approaches to describe knowledge of the soci...
Iteration Method for Simultaneous Estimation of Vertical Profiles of Air Temperature and Water Vapor with AQUA/AIRS Data
Iteration method for simultaneous estimation of vertical profiles of air temperature and water vapor with the high spectral resolution of sounder of AQUA/AIRS data is proposed. Through a sensitivity analysis based on the...
Privacy Preserving Data Mining Approach for IoT based WSN in Smart City
Wireless Sensor Network (WSN) is one of the most fundamental technologies of Internet of Things (IoT). Various IoT devices are connected to the internet by making use of WSN composed of different sensor nodes and actuato...
Analysis of Received Power Characteristics of Commercial Photodiodes in Indoor Los Channel Visible Light Communication
To date, the photodiode still the first choice component is used in optical communication, especially for visible light communication (VLC) system. It has advantages of speed, energy consumption, and sensitivity, compare...
Design of Miniaturized Multiband Microstrip Patch Antenna using Defected Ground Structure
The recent developments in communication and antenna engineering demands compact and multiband antennas. Microstrip antenna is one of the most useful antennas for wireless communication because of its inherent features l...