A Novel Fragile Zero-watermarking Algorithm Based on Quaternion and LBP under the Background of Blockchain

After the emergence of blockchain technology, although the problem of copyright protection on the chain has been solved, the problem of cross-chain prosecution and confirmation protection has not been solved.Zero watermarking is a technique that achieves copyright protection without any modification to the carrier image. This paper proposes a fragile zero-watermarking algorithm based on quaternion and LBP.In this way, the joint blockchain and fragile zero-watermark technology can solve the problem of cross-chain prosecution and confirmation protection.