Orthogonal transform watermarking techniques for authentification of digital images and documents

Orthogonal transform watermarking techniques for authentification of digital images and documents

In our transform-domain-based watermarking algorithms, two-level quantization is employed for both watermark embedding and extraction processes. Our public watermarking method is essentially extended from the semi-private approach and a spread-spectrum (SS) technique, which has been widely used in d...

Full description

Saved in:
Bibliographic Details
Main Author: Shu, Feng
Other Authors: Ho Tung Shuen, Anthony
Format: Theses and Dissertations
Published: 2008
Subjects:
DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
Online Access:https://hdl.handle.net/10356/3253
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Description
Summary:In our transform-domain-based watermarking algorithms, two-level quantization is employed for both watermark embedding and extraction processes. Our public watermarking method is essentially extended from the semi-private approach and a spread-spectrum (SS) technique, which has been widely used in digital communication, is employed.

Similar Items