2013/08/03 by Xu Li, Li Xu, Li, Xu +4 · 1 citation
Computer Science · #Advanced Steganography and Watermarking Techniques #Chaos-based Image/Signal Encryption #Computer Graphics and Visualization Techniques #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #Multimedia (cs.MM) #cs.CR #cs.MM
paper · pdf · doi:10.48550/arxiv.1308.0679
20 pages, 4 figures
arxiv created 2013/08/03 · openalex publication_date 2013/08/03 · arxiv updated 2013/08/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Based on fixed point theory, this paper proposes a new scheme for image integrity authentication, which is different from Digital Signature and Fragile Watermarking. A realization of the new scheme is given based on Gaussian Convolution and Deconvolution (GCD) functions. For a given image, if it is invariant under a GCD function, we call it GCD fixed point image. An existence theorem of fixed points for GCD functions is proved and an iterative algorithm is presented for finding fixed points. Experiments show that GCD fixed point images perform well in transparence, fragility, security and tampering localization.