
	Information Technology Journal
	Year: 2010 \| Volume: 9 \| Issue: 3 \| Page No.: 460-466 DOI: 10.3923/itj.2010.460.466

Robust Adaptive Image Watermarking using Visual Models in DWT and DCT Domain

Ahmed A. Abdulfetah, Xingming Sun, Hengfu Yang and Nur Mohammad

Abstract: In this study, two image adaptive invisible digital watermarking algorithms based on DWT and DCT are proposed for copyright protection. The first proposed algorithm utilizes Watson’s visual model (JND) to determine the watermarking strength necessary to invisibly embed the watermark in the DCT block coefficients of the cover image by controlling the power of strength of JND. The second proposed technique embeds the watermark by modifying coefficients of the vertical and the horizontal detail sub-bands of wavelet sub-blocks, chosen with a secret key. The visual model is designed to generate a Just Noticeable Difference mask (JND) by analyzing image characteristics such as textures and luminance of the cover image in the DWT based domain. Since, the secret key is required for both embedding and extraction of watermark, it is not possible for an unauthorized user to extract the embedded watermark. The proposed schemes are robust to common image processing distortions like filtering, JPEG compression and noise. Experimental results show that the proposed schemes are efficient, imperceptible and the quality of watermarked image is very well and robust for various image processing distortions.

PDF Fulltext XML References Citation Report Citation

RELATED ARTICLES:

•	High Capacity Triple Plane Embedding: A Colour Stego

•	Rubik’s Cube: A Way for Random Image Steganography

•	Kubera Kolam: A Way for Random Image Steganography

•	An Automatically Changing Feature Method based on Chaotic Encryption

How to cite this article:

Ahmed A. Abdulfetah, Xingming Sun, Hengfu Yang and Nur Mohammad, 2010. Robust Adaptive Image Watermarking using Visual Models in DWT and DCT Domain. Information Technology Journal, 9: 460-466.

DOI: 10.3923/itj.2010.460.466

URL: https://scialert.net/abstract/?doi=itj.2010.460.466

COMMENT ON THIS PAPER

Navigation


		Online First
		Current Issue
		Previous Issues
		Editorial Board
		Submit a Manuscript
		Guide to Authors
		Subscribe to E-alerts

Indexed In


		ASCI-Database
		Asian Digital Library
		Google Scholar

Science Alert