Survey of wavelet-domain watermarking algorithms
P Meerwald, A Uhl - Security and watermarking of multimedia …, 2001 - spiedigitallibrary.org
In this paper, we will provide an overview of the wavelet-based watermarking techniques
available today. We will see how previously proposed methods such as spread-spectrum …
available today. We will see how previously proposed methods such as spread-spectrum …
Enhanced Face Recognition Using Discrete Cosine Transform.
In signal processing, important information is mainly required and processed. Discrete
Cosine Transform (DCT) provides a great compaction capabilities. One of the challenges of …
Cosine Transform (DCT) provides a great compaction capabilities. One of the challenges of …
Quantization watermarking in the JPEG2000 coding pipeline
P Meerwald - Communications and Multimedia Security Issues of the …, 2001 - Springer
In this paper, we propose a blind watermarking method integrated in the JPEG2000 coding
pipeline. Prior to the entropy coding stage, the binary watermark is placed in the …
pipeline. Prior to the entropy coding stage, the binary watermark is placed in the …
Performance improvement in spread spectrum image watermarking using wavelets
This paper investigates the scope of wavelets for performance improvement in spread
spectrum image watermarking. Performance of a digital image watermarking algorithm, in …
spectrum image watermarking. Performance of a digital image watermarking algorithm, in …
Blind error-free detection of transform-domainwatermarks
MA Sheikh, RG Baraniuk - 2007 IEEE International Conference …, 2007 - ieeexplore.ieee.org
In this paper we propose a new blind, error-free detection algorithm for watermarking in
transform domains. The detection scheme uses linear decoding techniques from the theory …
transform domains. The detection scheme uses linear decoding techniques from the theory …
Improved QIM-based watermarking integrated to JPEG2000 coding scheme
A Ouled Zaid, A Makhloufi, A Bouallègue… - Signal, image and video …, 2009 - Springer
In recent years it has been recognized that embedding information in wavelet transform
domain leads to more robust blind watermarks. A major difficulty, however, in watermarking …
domain leads to more robust blind watermarks. A major difficulty, however, in watermarking …
Method of integrating a watermark into a compressed image
T Acharya, K Raj - US Patent 6,449,380, 2002 - Google Patents
In accordance with one embodiment of the invention, a method is provided for integrating at
least a portion of a watermark into at least a portion of a compressed image. The method of …
least a portion of a watermark into at least a portion of a compressed image. The method of …
Message insertion and extraction in digital data
H Le Floch - US Patent 7,478,241, 2009 - Google Patents
US7478241B2 - Message insertion and extraction in digital data - Google Patents
US7478241B2 - Message insertion and extraction in digital data - Google Patents Message …
US7478241B2 - Message insertion and extraction in digital data - Google Patents Message …
Verification of image content integrity by using dual watermarking on wavelets domain
WN Lie, TL Hsu, GS Lin - Proceedings 2003 International …, 2003 - ieeexplore.ieee.org
Fragile watermarking is designed to protect content integrity of digital data, meaning to
detect any change in the content as well as localize areas that have been changed. In this …
detect any change in the content as well as localize areas that have been changed. In this …