2007/11/22 by Shiguo Lian, Lian, Shiguo
Computer Science · #Advanced Steganography and Watermarking Techniques #C.2.0 #Cellular Automata and Applications #Chaos-based Image/Signal Encryption #Cryptography and Security (cs.CR) #D.2.11 #D.4.6 #FOS: Computer and information sciences #Multimedia (cs.MM) #cs.CR #cs.MM
paper · pdf · doi:10.48550/arxiv.0711.3500
21 pages, 8 figures. To be submitted
arxiv created 2007/11/22 · openalex publication_date 2007/11/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In recent work, various fractal image coding methods are reported, which adopt the self-similarity of images to compress the size of images. However, till now, no solutions for the security of fractal encoded images have been provided. In this paper, a secure fractal image coding scheme is proposed and evaluated, which encrypts some of the fractal parameters during fractal encoding, and thus, produces the encrypted and encoded image. The encrypted image can only be recovered by the correct key. To keep secure and efficient, only the suitable parameters are selected and encrypted through in-vestigating the properties of various fractal parameters, including parameter space, parameter distribu-tion and parameter sensitivity. The encryption process does not change the file format, keeps secure in perception, and costs little time or computational resources. These properties make it suitable for secure image encoding or transmission.