Title :
Steganalysis of block-DCT image steganography
Author :
Wang, Ying ; Moulin, Pierre
Author_Institution :
CSL & ECE Dept., Illinois Univ., Urbana, IL, USA
fDate :
28 Sept.-1 Oct. 2003
Abstract :
Block-DCT based information embedding methods introduce distinctive non-stationarities into the stego-image. In particular, the difference between neighboring pixel intensities in one block and across two blocks have different distributions. A universal binary hypothesis test is then proposed to discriminate between stego-images and unmarked images.
Keywords :
cryptography; discrete cosine transforms; image processing; block-DCT image steganography; distinctive nonstationarities; information embedding methods; pixel intensities; stegoimages; universal binary hypothesis test; Data encapsulation; Discrete cosine transforms; Gray-scale; Image converters; Pixel; Spread spectrum communication; Statistics; Steganography; Testing; Two dimensional displays;
Conference_Titel :
Statistical Signal Processing, 2003 IEEE Workshop on
Print_ISBN :
0-7803-7997-7
DOI :
10.1109/SSP.2003.1289414
