Performance Evaluation of Spread Spectrum Watermarking using Error Control Coding

TL;DR

This paper introduces a robust, blind watermarking method using spread spectrum in wavelet coefficients, employing joint source-channel coding to improve reliability and efficiency in high-volume image data hiding.

Contribution

It presents a novel adaptive embedding scheme with joint source-channel coding for spread spectrum watermarking in wavelet domain, enhancing robustness and bandwidth utilization.

Findings

High detection reliability demonstrated in experiments

Improved robustness against volumetric distortions

Efficient bandwidth utilization in data transmission

Abstract

This paper proposes an oblivious watermarking algorithm with blind detection approach for high volume data hiding in image signals. We present a detection reliable signal adaptive embedding scheme for multiple messages in selective sub-bands of wavelet (DWT) coefficients using direct sequence spread spectrum (DS-SS) modulation technique. Here the impact of volumetric distortion sources is analyzed on the ability of analytical bounds in order to recover the watermark messages. In this context, the joint source-channel coding scheme has been employed to obtain the better control of the system robustness. This structure prevents the desynchronisation between encoder and decoder due to selective embedding. The experimental results obtained for Spread Spectrum (SS) transformed domain watermarking demonstrate the efficiency of the proposed system. This algorithmic architecture utilizes the existing allocated bandwidth in the data transmission channel in a more efficient manner.