Journal of information and communication convergence engineering

  • 제9권1호
  • /
  • Pages.95-99
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  • 2011
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  • 2234-8255(pISSN)
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  • 2234-8883(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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Analysis Method of Digital Forgeries on the Filtered Tampered Images

  • Kim, Jin-Tae (Department of Computer and Information Engineering, Hanseo University) ;
  • Joo, Chang-Hee (Department of Computer Control, Bucheon University)
  • 투고 : 2010.11.29
  • 심사 : 2011.01.01
  • 발행 : 2011.01.01
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초록

Digital forensics is the emerging research field for determining digital forgeries. Key issues of the tampered images are to solve the problems for detecting the interpolation factor and the tampered regions. This paper describes a method to detect the interpolation factors and the forged maps using the differential method and fast Fourier transform(FFT) along the horizontal, vertical, and diagonal direction, respectively from digital filtered tampered images. The detection map can be used to find out interpolated regions from the tempered image. Experimental results demonstrate the proposed algorithm proves effective on several filtering images by adobe $Photoshop^{TM}$ and show a ratio of detecting the interpolated regions and factors from digital filtered composite images.

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참고문헌

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