Digital Watermark Embedding Algorithm

Digital watermark embedding algorithm is a security technology designed to protect digital content. It encompasses methodologies for multi-resolution watermark embedding and extraction, as well as blind watermark embedding and detection algorithms. The implementation includes computational programs for evaluating watermark quality through Peak Signal-to-Noise Ratio (PSNR) and Normalized Cross-Correlation Coefficient (NCC) metrics. Through digital watermarking algorithms, unique identifiers can be embedded into digital content to track and protect intellectual property rights. This algorithm has extensive applications in digital copyright protection, anti-counterfeiting traceability, data integrity verification, and other related fields. Key implementation aspects typically involve frequency-domain transformations (such as DCT or DWT), coefficient modification techniques, and robust embedding strategies that maintain perceptual transparency while ensuring detection reliability.