한국방송∙미디어공학회:학술대회논문집 (Proceedings of the Korean Society of Broadcast Engineers Conference)

한국방송∙미디어공학회 (The Korean Institute of Broadcast and Media Engineers)
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AN IMPROVED JPEG2000 STEGANOGRAPHY USING QIM AND ITS EVALUATION BY STEGANALYSIS

  • Ishida, Takayuki (Kyushu Institute of Technology, Dept. of Systems Design and Informatics) ;
  • Yamawaki, Kazumi (Kyushu Institute of Technology, Dept. of Systems Design and Informatics) ;
  • Noda, Hideki (Kyushu Institute of Technology, Dept. of Systems Design and Informatics) ;
  • Niimi, Michiharu (Kyushu Institute of Technology, Dept. of Systems Design and Informatics)
  • 발행 : 2009.01.12
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초록

This paper presents a modified QIM-JPEG2000 steganography which improves the previous JPEG2000 steganography using quantization index modulation (QIM). Post-embedding changes in file size and PSNR by the modified QIM-JPEG2000 are smaller than those by the previous QIM-JPEG2000. Steganalysis experiments to determine whether messages are embedded in given JPEG2000 images show that the modified QIM-JPEG2000 is more secure than the previous QIMJPEG2000.

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