Complete DCT Domain Digital Watermarking Source Code in MATLAB

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Resource Overview

Comprehensive MATLAB implementation of Discrete Cosine Transform (DCT) based digital watermarking system with full source code

Detailed Documentation

Complete DCT domain digital watermarking source code in MATLAB. This source code provides a comprehensive implementation of digital watermarking in the DCT domain using MATLAB. The program includes all essential steps for embedding and extracting digital watermarks, along with adjustable parameters that allow users to customize the system according to their specific requirements. The implementation utilizes DCT transformation for frequency domain watermark embedding, incorporating algorithms for coefficient selection, watermark insertion, and extraction processes. Key functions handle image preprocessing, DCT block processing, watermark encoding/decoding, and robustness evaluation. This source code serves as a valuable tool for embedding and extracting watermarks in digital images, helping protect copyright and verify image authenticity through sophisticated frequency-domain techniques.

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