Title :
Dual security-based image steganography
Author_Institution :
Inst. of Inf. Sci., Acad. Sinica, Taipei, Taiwan
Abstract :
In this paper, an image steganographic method with security level confined to a dual security criterion is addressed. Dual security is designed to be measured by kurtosis in the spatial domain and by relative entropy in the frequency domain, simultaneously. Messages are encoded into the wavelet domain by adjusting the magnitude (least few significant bits) relationship between four neighboring child nodes (called permutations of order representations) to satisfy the dual security criterion. Relationship between security, perceptual fidelity, and capacity are investigated on various images.
Keywords :
Gaussian noise; cryptography; entropy; image processing; wavelet transforms; Gaussian noise; dual security criterion; kurtosis; permutations; relative entropy; security-based image steganography; wavelet domain; Cities and towns; Data encapsulation; Data security; Entropy; Frequency domain analysis; Frequency measurement; Information science; Information security; Steganography; Watermarking;
Conference_Titel :
Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
Print_ISBN :
0-7803-7965-9
DOI :
10.1109/ICME.2003.1221660