Explore MATLAB source code curated for "水印算法" with clean implementations, documentation, and examples.
This watermark algorithm implementation using wavelet transform is highly valuable for studying wavelet analysis and watermarking techniques! It demonstrates practical signal processing applications through multi-resolution decomposition and frequency-domain embedding approaches.
This watermarking algorithm features: 1) Adaptive audio segment partitioning and intelligent watermark strength adjustment based on audio characteristics, enhancing robustness; 2) Simultaneous copyright protection and content authentication with approximate tamper localization; 3) Simulation experiments demonstrate excellent imperceptibility and robustness against common processing operations; 4) Capable of detecting replacement attacks and identifying tampered positions. The algorithm implements dynamic segmentation through audio feature analysis and employs psychoacoustic models for adaptive embedding strength calculation.
Research and Implementation of Content Authentication Semi-Fragile Watermarking Algorithm. This program implements image semi-fragile watermarking using a DCT-based approach, featuring adaptive embedding strategies and tamper detection mechanisms. Particularly suitable for researchers studying semi-fragile watermarking techniques.
Implementation of watermarking algorithms utilizing Discrete Cosine Transform (DCT), Discrete Fourier Transform (DFT), and Discrete Wavelet Transform (DWT), including scrambled watermarking techniques for robust image processing applications.
A wavelet transform-based watermarking algorithm implementing blind detection with robustness against common geometric attacks, featuring embedding techniques in frequency domain sub-bands and correlation-based extraction methods.
Implementation of Hénon chaotic sequence and watermarking algorithm for image encryption/decryption programs - highly practical solution with robust security features
Implementation of Singular Value Decomposition (SVD) in watermarking algorithms, including embedding and extraction processes with code-level technical insights