Digital Watermark Embedding Algorithm

Digital watermark embedding algorithm, featuring multi-resolution watermark embedding and extraction techniques, blind watermark embedding and detection algorithms, along with implementations for calculating Peak Signal-to-Noise Ratio (PSNR) and Normalized Cross-Correlation Coefficient (NCC) for quality assessment.

Digital Watermark Embedding Algorithm with Discrete Cosine Transform

A digital watermark embedding algorithm utilizing Discrete Cosine Transform (DCT) with improvements over conventional approaches, implementing frequency-domain coefficient modification through quantization-based embedding