Explore MATLAB source code curated for "数字水印" with clean implementations, documentation, and examples.
MATLAB source code implementation for digital watermarking using 2D Discrete Cosine Transform (DCT), including image transformation, watermark embedding algorithms, and performance evaluation
Mini-program for digital watermarking algorithms, providing introductory assistance for beginners in digital watermarking. Developed in MATLAB environment with implementation of basic embedding and extraction techniques.
Digital watermark extraction utilizing wavelet transform technology, designed to work in conjunction with embedding programs. Provides fundamental wavelet applications with implementation involving multi-level decomposition and coefficient processing algorithms.
MATLAB code for digital watermarking in images, covering watermark embedding, extraction techniques, and embedding strength optimization with algorithm implementation details
MATLAB source code implementing DCT-based watermarking for grayscale images. Features blind watermark recovery without requiring the original uncorrupted image. Digital watermarking provides effective copyright protection and authentication solutions through embedded identification codes that trace document authorship, ownership, and distribution rights.
Quantized audio digital watermarking using wavelet transform, featuring complete code for watermark embedding, extraction, and attack simulations with algorithm implementation details.
MATLAB implementation of digital watermarking technology using image fusion, including test images for validation
This presents a novel watermarking algorithm for color carrier images using hypercomplex frequency domain processing. The method employs Fast Hypercomplex Fourier Transform (FHFT) to embed watermarks in selected frequency bands while modifying symmetric coefficient values, ensuring the watermarked image maintains RGB transmission compatibility. Through analysis and MATLAB implementation, the algorithm demonstrates effective error diffusion across RGB channels via inverse hypercomplex Fourier transform, achieving optimal balance between watermark imperceptibility and security. The proposed "cross-redundant embedding" strategy further enhances robustness, with experimental results validating the algorithm's superiority.
A graduation thesis on DCT-based digital watermarking, featuring comprehensive research on low-frequency DCT watermarking algorithms, mid-frequency DCT watermarking algorithms, and adaptive video watermarking schemes with MATLAB/Python implementation considerations.
Comprehensive collection of basic digital watermarking algorithms with code implementation examples