NON-BLIND IMAGE WATERMARKING USING CONTOURLET TRANSFORM
Journal Title: Indian Journal of Computer Science and Engineering - Year 2011, Vol 2, Issue 1
Abstract
This paper presents a novel non-blind watermarking algorithm using contourlet transform. The contourlet transform is preferred for watermarking because of its ability to capture the directional edges and contours superior to other transforms such as cosine transform, wavelet transform, etc. Watermark is encrypted and embedded into high frequency directional subband, which is obtained by performing contourlet decomposition on the host image. The watermarked image has very good perceptual transparency. Watermark extraction algorithm is a non-blind process, which makes use of original image as reference for retrieving the watermark. This algorithm is robust against cropping attacks and geometric attacks and also has superior Peak Signal to Noise Ratio (PSNR) for the watermarked image.
Authors and Affiliations
MAHESH KUMAR N , MANIKANDAN T , SAPTHAGIRIVASAN V
Keywords
Related Articles
- EP ID EP150280
- DOI -
- Views 132
- Downloads 0
Comparative Analysis of Pattern Recognition Methods: An Overview
The identification or interpretation of the pattern in an image can be described effectively with the help of Pattern Recognition (PR). It aims to extract information about the image to classify its contents. Inputs are...
A Review of Malicious Attack in Mobile Ad-Hoc Network Based On Power Constraints
The minimization of power in wireless sensor network is big issue. If the process of energy constraints is optimized increase the reliability and security of mobile ADHOC network. The management of ADHOC network is great...
Spatial Fuzzy C-Means PET Image Segmentation of Neurodegenerative Disorder
Nuclear image has emerged as a promising research work in medical field. Images from different modality meet its own challenge. Positron Emission Tomography (PET) image may help to precisely localize disease to assist in...
ENHANCING TRUST BELIEFS IN E-COMMERCE THROUGH WHITELIST WEBSITE SECURITY PARADIGM
In the emerging global economy, E-commerce has increasingly become a strong catalyst for economic development. Based on the observation of the E-commerce management practices in India it is felt that there is a need to i...
DIGITAL WATERMARKING SCHEMES FOR AUTHORIZATION AGAINST COPYING OR PIRACY OF COLOR IMAGES
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 w...