Title :
Performance Improvement of JPEG2000 Steganography Using QIM
Author :
Ishida, Takayuki ; Yamawaki, Kazumi ; Noda, Hideki ; Niimi, Michiharu
Author_Institution :
Dept. of Syst. Design & Inf., Kyushu Inst. of Technol., Iizuka
Abstract :
This paper presents a modified QIM-JPEG2000 steganography which improves the previous JPEG2000 steganography using quantization index modulation (QIM). Since after-embedding changes on file size and PSNR by the modified QIM-JPEG2000 are smaller than those by the previous QIM-JPEG2000, the modified QIM-JPEG2000 should be more secure than the previous QIM-JPEG2000.
Keywords :
cryptography; data encapsulation; image coding; quantisation (signal); JPEG2000 steganography; PSNR; QIM; file size; quantization index modulation; Containers; Decoding; Discrete cosine transforms; Discrete wavelet transforms; Higher order statistics; Histograms; Image coding; Quantization; Steganography; Transform coding;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing, 2008. IIHMSP '08 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-0-7695-3278-3
DOI :
10.1109/IIH-MSP.2008.120
