DIGITAL WATERMARKING SCHEMES FOR AUTHORIZATION AGAINST COPYING OR PIRACY OF COLOR IMAGES
Journal Title: Indian Journal of Computer Science and Engineering - Year 2010, Vol 1, Issue 4
Abstract
This paper presents digital watermarking methods for authorization against copying or piracy of color images. Watermarking is a very important field for copyrights of various electronic documents and media. With images widely available on the Internet, it may sometimes be desirable to use watermarks. Digital watermarking is the processing of combined information into a digital signal. A watermark is a secondary image, which is overlaid on the host image, and provides a means of protecting the image. This paper presents the survey on digital watermark features, its classifications and applications. Various watermarking techniques have been studied in detail in mainly three domains: spatial, frequency and statistical domain. In spatial domain, Least-Significant Bit (LSB), SSM-Modulation-Based Technique has been developed. For DCT domain, block based approach and for wavelet domain, multi-level wavelet transformation technique and CDMA based approaches has been developed. The Discrete Wavelet Transform (DWT) is currently used in a wide variety of signal processing applications. This paper also presents the various error matrices for analyses the robustness of watermarking method.
Authors and Affiliations
Keshav S Rawat , Dheerendra S Tomar
Keywords
Related Articles
- EP ID EP113637
- DOI -
- Views 155
- Downloads 0
WEB BASED E-LEARNING IN INDIA: THE CUMULATIVE VIEWS OF DIFFERENT ASPECTS
In the presence of great social diversity in India, it is difficult to change the social background of students, parents and their economical conditions. Therefore the only option left for us is to provide uniform or sta...
A NOVEL EVOLUTIONARY ALGORITHM FOR DATA CLUSTERING IN N DIMENSIONAL SPACE
K-means clustering algorithm is one of the main algorithms applying in machine learning and pattern recognition. However, as the center of clusters are selected randomly and also due to the dependence of clustering resul...
Statistical Analysis of Reliability in edge detection techniques using Optical Coherent Tomography image
Optical Coherence Tomography (OCT) has many uses in medicine and engineering biology. It is a non-invasive technique where Edge detection in image processing playing a significant role in characterization of boundaries a...
Comparative Study of Perturbation and Cryptography in PPDM
In this paper, we studied technique for the perturbation and cryptography method. In developing this new theoretical basis we measure data utility and disclosure risk. Basically we compare random rotation and cryptograph...
A PKI ARCHITECTURE USING OPEN SOURCE SOFTWARE FOR EGOVERNMENT SERVICES IN ROMANIA
This article presents an architecture based on Open Source software that promote citizen’s access to electronic services in a secure way and attempt to make an analysis between two different Open Source Public Key Infras...