Automatic Selection of GA Parameters for Fragile Watermarking
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  • 作者:Marco Botta (15)
    Davide Cavagnino (15)
    Victor Pomponiu (16)
  • 关键词:Information hiding ; Fragile watermarking ; Genetic algorithms ; Karhunen ; Lo猫ve Transform
  • 刊名:Lecture Notes in Computer Science
  • 出版年:2014
  • 出版时间:2014
  • 年:2014
  • 卷:1
  • 期:1
  • 页码:526-537
  • 全文大小:723 KB
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    3. Botta, M., Cavagnino, D., Pomponiu, V.: KL-F: Karhunen-Lo猫ve Based Fragile Watermarking. In: 5th International Conference on Network and System Security NSS 2011, pp. 65鈥?2 (2011)
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  • 作者单位:Marco Botta (15)
    Davide Cavagnino (15)
    Victor Pomponiu (16)

    15. Dipartimento di Informatica, Universit脿 degli Studi di Torino, Corso Svizzera 185, 10149, Torino, Italy
    16. Department of Radiology, University of Pittsburgh, 3362 Fifth Avenue, Pittsburgh, 15213, PA, USA
  • ISSN:1611-3349
文摘
Genetic Algorithms (GAs) are known to be valuable tools for optimization purposes. In general, GAs can find good solutions by setting their configuration parameters, such as mutation and crossover rates, population size, etc., to standard (i.e., widely used) values. In some application domains, changing the values of these parameters does not improve the quality of the solution, but might influence the ability of the algorithm to find such solution. In other application domains, fine tuning these parameters could result into a significant improvement of the solution quality. In this paper we present an experimental study aimed at finding how fine tuning the parameters of a GA used for the insertion of a fragile watermark into a bitmap image influences the quality of the resulting digital object. However, when proposing a GA based new tool to non-expert users, selecting the best parameter setting is not an easy task. Therefore, we will suggest how to automatically set the GA parameters in order to meet the quality and/or running time performances requested by the user.

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