원문정보
보안공학연구지원센터(IJMUE)
International Journal of Multimedia and Ubiquitous Engineering
Vol.5 No.3
2010.07
pp.1-14
피인용수 : 0건 (자료제공 : 네이버학술정보)
초록
영어
This paper is presenting a betterment steganographic method for covert channel communication. Two distinct methods are combined to achieve possibly high data hiding capability with high visual quality. The proposed method shifts the last n nonzero AC coefficients from S JPEG block, and changes the magnitude values of the first n nonzero AC coefficients from T JPEG blocks. S and T blocks are determined by the number of nonzero JPEG coefficients in the block. Zero run-length modification method improves the robustness against statistical attack based on magnitude histogram. Magnitude modification method improves the visual quality. This combination complements each other.
목차
Abstract
1. Introduction
2. Proposed Approach
2.1. S and T JPEG Blocks
2.2. Shifting Nonzero AC Coefficients
2.3 Modifying Magnitude Nonzero AC Coefficients
2.4. Data Hiding Algorithm
3. Experiment and Discussions
4. Conclusions
References
1. Introduction
2. Proposed Approach
2.1. S and T JPEG Blocks
2.2. Shifting Nonzero AC Coefficients
2.3 Modifying Magnitude Nonzero AC Coefficients
2.4. Data Hiding Algorithm
3. Experiment and Discussions
4. Conclusions
References
저자정보
참고문헌
자료제공 : 네이버학술정보