Paper Details: Downloads: 1996
Serial Number: P1151636515
Title: Robust Color Image Watermarking Technique Using DWT and Homomorphic based SVD
Authors: Khalid A. Al-Afandy and EL-Sayed M. EL-Rabaie and Fathi E. Abd El-Samie and Osama S. Faragallah and Ahmed ELmhalaway and A. M. Shehata
Abstract: This paper presents a robust hybrid image watermarking technique using Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD). The DWT is utilized to divide the image into non-overlapping bands. The reflectance component of the low-frequency sub-band (LL) is extracted using homomorphic transform for each color (red, green, and blue). The watermark embedding is performed using SVD on the reflectance component of the LL sub-band. The results of the proposed watermarking technique are compared with some state-of-the-art techniques. The comparison test is performed on images with different resolutions. It is based on visualization to detect any degradations in the watermarked image, Peak Signal-to-Noise Ratio (PSNR) of watermarked image, and Normalized Correlation (NC) of extracted watermark.
Keywords: Watermarking, Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT), Singular Value Decomposition (SVD), Homomorphic transform.
Journal/Conference: International Journal of Graphics, Vision and Image Processing
Volume: 16
Issue: 3
Submission Date: 9/2/2016 12:00:00 AM
Review Date: 9/17/2016 12:00:00 AM
Publishing Date: 11/2/2016 12:00:00 AM
Article Downloads: 1996
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