A blind digital watermarking scheme based on frame coding

A cropping resistant blind digital watermarking scheme based on frame coding is designed. Two technologies, image confusion and frame coding, are used to deal with watermark information, which can enhance information security and bind the synchronous information with a watermark. Meanwhile, in DCT domain, an embedding strategy based on image fragmentation and the extracting strategy based on image location are offered. The experimental results show that this scheme possesses a high robustness under cropping attack. And it can effectively resist normal image disposal methods.