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 149
- Downloads 0
THE MAIN FEATURE FOR SUCCESSFUL IMPLEMENTATION A DATA WAREHOUSE
Data warehousing is the leading and most reliable technology used today by companies for planning, forecasting, and management A lot has been done in this field regarding design and development of data warehouses and a l...
NETWORK INTRUSION DETECTION SYSTEM USING FUZZY LOGIC
IDS which are increasingly a key part of system defense are used to identify abnormal activities in a computer system. In general, the traditional intrusion detection relies on the extensive knowledge of security experts...
SPATIAL FEATURE EXTRACTIONS USING SUPERVISED FUZZY CLASSIFICATION
This paper emphasis on spatial feature extractions and selection techniques adopted in content based image retrieval that uses the visual content of a still image to search for similar images in large scale image databas...
Minimizing End to End Delay by Power Aware Routing in Wireless Mobile Adhoc Network
In this paper, we proposed an algorithm for joint power control and routing, along with cross layer interactions in wireless ad-hoc networks. The performance analysis expects that there will be a better improvement in en...
A GENETIC ALGORITHM FOR FINITE STATE AUTOMATA
The genetic algorithm is described, including its three main steps: selection, crossover, and mutation. A comparison between implementation costs and running times of regular expressions matching a string is then made. T...