Blind watermarking system for digital images in the wavelet domain

Alessandra Lumini; Dario Maio

doi:10.1117/12.385008

9 May 2000 Blind watermarking system for digital images in the wavelet domain

Alessandra Lumini, Dario Maio

Proceedings Volume 3971, Security and Watermarking of Multimedia Contents II; (2000) https://doi.org/10.1117/12.385008
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

Image watermarking has been the topic of much research and it is now widely accepted that the watermark should be placed in perceptually significant components of an image, in order to be robust against common signal distortions and malicious attacks. This choice makes the watermark potentially visible, therefore only slight modifications to the original image are allowed with a low loss of quality. In this work we propose a scheme where the energy of the watermark embedded depends on the image to be marked, thus fitting image capacity. The three fundamental stages of our scheme are: a watermark sequence generation as zero-mean, unit-variance Gaussian noise, an embedding procedure working in the DWT domain, and watermark detection performed by correlation and not requiring the original image. The experimental results prove that the method is resistant to JPEG compression up to a quality factor of 10%, to blurring and median filtering, to cropping and stretching; moreover the watermark is not perceivable for many different kinds of images, including cartoons.

Citation Download Citation

Alessandra Lumini and Dario Maio "Blind watermarking system for digital images in the wavelet domain", Proc. SPIE 3971, Security and Watermarking of Multimedia Contents II, (9 May 2000); https://doi.org/10.1117/12.385008

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