Explore MATLAB source code curated for "水印" with clean implementations, documentation, and examples.
Implementation of a local extremum audio watermarking algorithm using MATLAB, featuring watermark embedding and extraction operations, along with common audio watermarking attack methods and their simulations.
Implementation of digital watermarking using Discrete Cosine Transform (DCT) - seeking suggestions for code optimization and algorithm improvements
Applying noise processing to host images after wavelet-based watermark embedding and extracting grayscale watermarks with algorithm implementation details.
After performing bi-orthogonal 7/9 three-level wavelet decomposition on the original image, watermark coefficients are embedded in the second-level horizontal, vertical, diagonal components and third-level diagonal subbands, followed by inverse wavelet transform to reconstruct the watermarked image.
This graphical user interface enables digital watermarking operations on images through DWT/IDWT transformations. Users can batch process image folders with single-click functionality, embedding watermarks in frequency-domain images while automatically calculating PSNR and MSE metrics for extraction quality assessment.
Applying ANORLD transform to images - during watermark embedding, preprocessing the watermark image with scrambling operations can effectively resist cropping attacks, with implementation involving Arnold cat map algorithms for pixel position permutation
Wavelet Transform-Based Watermarking with Mid-Frequency Embedding and Extraction Algorithm Implementation