Blind Robust and Self-Embedding Fragile Image Watermarking for Image Authentication and Copyright Protection with Recovery Capability
Institut Teknologi Sepuluh Nopember, Lusia Rakhmawati, Suwadi Suwadi, Institut Teknologi Sepuluh Nopember, Wirawan Wirawan, Institut Teknologi Sepuluh Nopember · International journal of intelligent engineering and systems · 2020
This paper proposes a dual watermarking scheme that can integrate the functions of authentication, copyright protection, and image recovery in the same cover image.The robust watermarking utilizes a single watermark using the discrete cosine transform (DCT) domain for copyright protection, while the fragile scheme utilizes two self-embedding watermarks in a spatial domain for authenticating and restoring digital image content.The mechanism of the two schemes is carried out sequentially and uses a block-based approach.A new blind robust watermarking is proposed using a quantitative property of intermediate frequency coefficient for embedding and adaptive embedding strength selection to balance transparency and robustness.Fragile watermarks are inserted into a robust watermarked image based on the improved replacement approach of the least significant bits.Experimental results show that the proposed method can withstand various processing attacks; enhance the accuracy of deceptive localization with good visual quality of image recovery.