Implementation of Digital Watermarking Technology Using LSB Algorithm

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Resource Overview

This project implements digital watermarking technology through the Least Significant Bit (LSB) algorithm, featuring complete embedding and extraction functionality. The implementation includes four distinct attack algorithms and utilizes PSNR (Peak Signal-to-Noise Ratio) to measure differences between extracted watermarks and those retrieved after various attacks.

Detailed Documentation

This documentation presents the implementation of digital watermarking technology using the Least Significant Bit (LSB) algorithm. Our codebase provides complete watermark embedding and extraction functionality with detailed implementation of the core LSB manipulation methods for modifying the least significant bits of pixel values. The system incorporates four distinct attack algorithms, including noise injection, filtering, compression, and geometric transformations, to test watermark robustness. We employ PSNR (Peak Signal-to-Noise Ratio) calculations to quantitatively measure the differences between originally extracted watermarks and those retrieved after applying various attacks. This comprehensive approach enables effective data protection and verification through mathematical quality assessment of the watermark recovery process.

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