Adaptation in natural and artificial systems
Adaptation in natural and artificial systems
Intelligent Watermarking Techniques (Innovative Intelligence)
Intelligent Watermarking Techniques (Innovative Intelligence)
ART2-Based Genetic Watermarking
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1
Enhancement of image watermark retrieval based on genetic algorithms
Journal of Visual Communication and Image Representation
VQ-Based gray watermark hiding scheme and genetic index assignment
PCM'04 Proceedings of the 5th Pacific Rim Conference on Advances in Multimedia Information Processing - Volume Part II
A new approach for optimization in image watermarking by using genetic algorithms
IEEE Transactions on Signal Processing
Learning and optimization using the clonal selection principle
IEEE Transactions on Evolutionary Computation
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In this paper, a novel fragile watermarking method based on clonal selection algorithm (CSA), CLONALG, is presented. In Discrete Cosine Transform (DCT) based fragile watermarking techniques, there occurs some degree of rounding errors because of the conversion of real numbers into integers in the process of transformation of image from frequency domain to spatial domain. In this paper, the rounding errors caused by this transformation process are corrected by using CLONALG. Simulation results show that extracted watermark is obtained exactly the same as embedded watermark and optimum watermarked image transparency is achieved. In addition, the performance comparison of CLONALG and genetic algorithm (GA) based methods is realized.