A Wavelet-Based Digital Watermarking for Video

TL;DR

This paper introduces a robust, blind, and perceptually invisible video watermarking method using 3D wavelet transforms, capable of resisting common video attacks and enabling watermark extraction without the original video.

Contribution

It presents a novel 3D wavelet-based watermarking scheme that is robust, blind, and perceptually invisible, with detailed evaluation and experimentation.

Findings

Robust against frame dropping, averaging, and swapping attacks

Enables blind watermark extraction without original video

Maintains perceptual invisibility of the watermark

Abstract

A novel video watermarking system operating in the three dimensional wavelet transform is here presented. Specifically the video sequence is partitioned into spatio temporal units and the single shots are projected onto the 3D wavelet domain. First a grayscale watermark image is decomposed into a series of bitplanes that are preprocessed with a random location matrix. After that the preprocessed bitplanes are adaptively spread spectrum and added in 3D wavelet coefficients of the video shot. Our video watermarking algorithm is robust against the attacks of frame dropping, averaging and swapping. Furthermore, it allows blind retrieval of embedded watermark which does not need the original video and the watermark is perceptually invisible. The algorithm design, evaluation, and experimentation of the proposed scheme are described in this paper.