watermarking techniques

Watermarking techniques embed information into digital content—like images, videos, or audio—to verify ownership or authenticity. This is done by subtly altering the media in a way that is invisible or inaudible to viewers or listeners but can be detected or extracted later. Techniques vary from modifying pixel patterns, embedding data in frequency components, to using complex algorithms that hide the watermark within the data structure. The goal is to ensure the watermark is robust against editing or tampering, helping protect intellectual property and prevent unauthorized use without compromising the original quality of the media.