M. Haseyama, I. Kondo. Image Authentication Based on Fractal Image Coding without Contamination of Original Image. Systems and Computers in Japan, 34(9):1-9, 2003.
Several watermarking methods proposed for the purpose of copyright protection embed signature data or images in the original images. Thus, they unavoidably produce degradation of the original images. Authors who create art works, however, desire to distribute their own original s unaltered. Threfore, this paper proposes a system for authentication of original images distributed without embedding any watermarks. The proposed method is based on fractal image coding, an image coding method. The IFS parameters obtained in fractal image coding are utilized as authentication parameters, and signature images for authentication are extracted using these parameters
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@article{HaKo03,
Author = {Haseyama, M. and Kondo, I.},
Title = {Image Authentication Based on Fractal Image Coding without Contamination of Original Image},
Journal = {Systems and Computers in Japan},
Volume = {34},
Number = {9},
Pages = {1--9},
Publisher = {Wiley},
Year = {2003}
}