MATLAB Source Code for LSB-Based Image Digital Watermark Embedding and Detection

This MATLAB source code implements a digital watermarking tool for image watermark embedding and detection using the LSB (Least Significant Bit) algorithm. The implementation focuses on manipulating the least significant bits of image pixels to embed watermark information, making the changes virtually imperceptible to human vision while ensuring reliable detection capabilities. The tool provides functions for both embedding watermarks into host images and extracting/verifying watermarks from potentially modified images. Key features include bitmap processing, pixel value modification, and correlation-based detection algorithms. This implementation serves as an educational and practical resource for individuals interested in digital image watermarking techniques, offering a straightforward yet effective approach to understanding and applying LSB-based watermarking methods. The code structure includes modular functions for image preprocessing, watermark encoding, and detection verification, making it suitable for both learning purposes and practical applications in digital rights management and image authentication.