Title :
A variable depth LSB data hiding technique in images
Author :
Liu, Shao-Hui ; Chen, Tun-Hang ; Yao, Hong-Xun ; Gao, Wen
Author_Institution :
Sch. of Comput. Sci. & Technol., Harbin Inst. of Technol., China
Abstract :
In this paper, a data hiding technique by variable depth LSB substitution is proposed. Firstly, pixels of cover-image are grouped according to themselves luminance values. Then the occurrence of pixel-values in each group is counted and sorted in monotone increasing. Finally, a bitplane-wise data hiding method is used to hide data in cover image. The worst-square-error between the stego-image and the cover-image is formulated. Theory analysis indicates that image quality of the stego-image hidden by this method can improve from 0 db to 4 db against simple LSB (least significant bit) substitution method. Experimental results show that the stego-image is visually indistinguishable from the original cover-image.
Keywords :
computational complexity; data encapsulation; image colour analysis; bitplane wise data hiding method; image pixels; least significant bit; luminance values; stego image quality; variable depth LSB substitution method; worst square error formulation; Computer science; Data encapsulation; Data security; Genetic algorithms; Image analysis; Image quality; Information security; Pixel; Radio access networks; Scattering;
Conference_Titel :
Machine Learning and Cybernetics, 2004. Proceedings of 2004 International Conference on
Print_ISBN :
0-7803-8403-2
DOI :
10.1109/ICMLC.2004.1384536
