Discrete Walsh Hadamard transform based visible watermarking technique for digital color images

V. Santhi; Arunkumar Thangavelu

doi:10.1117/12.913308

1 October 2011 Discrete Walsh Hadamard transform based visible watermarking technique for digital color images

V. Santhi, Arunkumar Thangavelu

Proceedings Volume 8285, International Conference on Graphic and Image Processing (ICGIP 2011); 82854T (2011) https://doi.org/10.1117/12.913308
Event: 2011 International Conference on Graphic and Image Processing, 2011, Cairo, Egypt

Abstract

As the size of the Internet is growing enormously the illegal manipulation of digital multimedia data become very easy with the advancement in technology tools. In order to protect those multimedia data from unauthorized access the digital watermarking system is used. In this paper a new Discrete walsh Hadamard Transform based visible watermarking system is proposed. As the watermark is embedded in transform domain, the system is robust to many signal processing attacks. Moreover in this proposed method the watermark is embedded in tiling manner in all the range of frequencies to make it robust to compression and cropping attack. The robustness of the algorithm is tested against noise addition, cropping, compression, Histogram equalization and resizing attacks. The experimental results show that the algorithm is robust to common signal processing attacks and the observed peak signal to noise ratio (PSNR) of watermarked image is varying from 20 to 30 db depends on the size of the watermark.

Citation Download Citation

V. Santhi and Arunkumar Thangavelu "Discrete Walsh Hadamard transform based visible watermarking technique for digital color images", Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82854T (1 October 2011); https://doi.org/10.1117/12.913308

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available