GVIP Journal    

GVIP
 VOLUME={08}, ISSUE = {1} ICGST

A Robust Digital Image Watermarking Scheme using Singular Value Decomposition (SVD), Dither Quantization and Edge Detection

B.Chandra Mohan#, S.Srinivaskumar$, B.N.Chatterji*

#Research Scholar, JNTU College of Engineering, Kakinada, Andhra Pradesh, India.
$Professor, ECE Dept, JNTU College of Engineering, Kakinada, Andhra Pradesh, India.
*Former Professor, Dept of E & ECE, Indian Institute of Technology, Kharagpur, West Bengal, India.

Abstract

This paper presents a robust algorithm for digital image watermarking based on Singular Value Decomposition (SVD) and Dither Quantization. The eigen matrix in the singular value decomposition is explored for data embedding. The perceptibility of the watermarked image is enhanced by embedding the watermark image in some selected and most complex blocks of the host image. A block is said to be a complex block, if the number of edges in the block is more than a predefined threshold. The proposed method is robust and the watermark image can survive to many image attacks like rotation, scaling, noise, JPEG compression, JPEG 2000 compression, low pass filtering, biplane removal, row column blanking, row column copying, cropping, image tampering and gamma correction. Results are compared with an existing and recent method and found to be superior in terms of the quality of the extracted watermark image and resilience to attacks. The metric used to test the robustness of the proposed algorithm is the Normalized Cross correlation (NC).

Keywords: Digital Image Watermarking, Singular Value Decomposition, Dither Quantization.
(P1150714002, 1.1 MB)

B.Chandra Mohan is currently working as  Professor in ECE Department, Bapatla Engineering College, Bapatla, India. He is working towards his Ph.D.at JNTU College of Engineering, Kakinada, India. He received his M.Tech from Cochin University of Science & Technolgoy, Cochin, India. He has fifteen  years experience of teaching undergraduate students and post graduate students.His research interests are in the areas of image watermarking, and image compression.

S. Srinivas Kumar is currently Professor and HOD in ECE Department, JNTU College of Engineering, Kakinada, India. He received his M.Tech. from Jawaharlal Nehru Technological University, Hyderabad, India. He received his Ph.D. from E&ECE Department IIT, Kharagpur. He has nineteen years experience of teaching undergraduate and post-graduate students and guided number of post-graduate theses. He has published 15 research papers in National and International journals.  Presently he is guiding five Ph.D students in the area of Image processing. His research interests are in the areas of digital image processing, computer vision, and application of artificial neural networks and fuzzy logic to engineering problems.

B.N.Chatterji is a former Professor in E&ECE Department IIT, Kharagpur. He received B.Tech. and Ph.D. (Hons.) from E&ECE Department IIT, Kharagpur in 1965 and 1970, respectively. He has served the Institute under various administrative capabilities as Head of Department, Dean (Academic), etc. He has chaired many international and national symposium and conferences organized in India and abroad, apart from organizing 15 short term courses for Industries and Engineering college teachers. He has guided 35 Ph.D. scholars. Presently, he is active in research by guiding three research scholars.   He has published more than 150 papers in reputed international and national journals apart from authoring three scientific books. His research interests are low-level vision, computer vision, image analysis, pattern recognition and motion analysis.

@ARTICLE{P1150714002,

AUTHOR = {B.Chandra Mohan and S.Srinivaskumar and B.N.Chatterji},

TITLE = {A Robust Digital Image Watermarking Scheme using Singular Value Decomposition (SVD), Dither Quantization and Edge Detection},

JOURNAL ={ICGST International Journal on Graphics, Vision and Image Processing, GVIP},

YEAR = {2008},

VOLUME = {08},

ISSUE ={I},

PAGES={17--23}

}

(P1150714002, 1.1 MB)