Digital Image Watermarking Algorithm Using Blockmarking Technique for Copyright Protection

Recently, blockmarking technique 13 is proposed for combination of blockchain and watermarking method. In this model, it not only achieves the purpose of image copyright protection but also stores the image into the blockchain network such as IPFS. In this paper, we propose a new DRM system by inheriting the idea of blockmarking. The copyright contents can be distributed via IPFS, then be restored by using the reconstruction license for each legal user. Also, in our method, based on the reconstruction licenses, the distributed contents can be reconstructed from IPFS with various watermarking patterns. It helps us can manage the legal users and trace the traitor if a dispute occurs. Experimental results show that the proposed method successfully achieves the goal of copyright protection. © 2023 IEEE.