Geometric correction code‐based robust image watermarking

Digital image watermarking is one of the effective schemes to protect copyrights still images. However, existing are not robust enough common geometric transformation attacks such as arbitrary rotation, scaling and shifting with desirable hiding capacity. To address this issue, we propose a scheme based on correction codes (GCCs). In scheme, watermark pre-set GCCs combined embedded into cover obtain watermarked image. At stage extraction, image, under variety attacks, can be geometrically corrected by minimising difference between extracted original GCCs, then from The experiments demonstrate that, compared typical schemes, proposed achieves much higher robustness comparable invisibility same embedding