A High Capacity Steganographic Method Based on Quantization Table Modification

For the traditional steganographic method of Jsteg, the emmbedment of secret message is completed by dividing cover-image into nonoverlapping blocks of 8×8 pixels, discrete cosine transform （DCT） transforming, and using the standard 8×8 quantization table to quantize. In this paper, a novel steganog...

Full description

Saved in:
Bibliographic Details
Published in:Wuhan University journal of natural sciences 2011-06, Vol.16 (3), p.223-227
Main Authors: Jiang, Cuiling, Pang, Yilin, Guo, Lun, Jing, Bing, Gong, Xiangyu
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Computer Science
Life Sciences
Materials Science
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For the traditional steganographic method of Jsteg, the emmbedment of secret message is completed by dividing cover-image into nonoverlapping blocks of 8×8 pixels, discrete cosine transform （DCT） transforming, and using the standard 8×8 quantization table to quantize. In this paper, a novel steganographic method based on the JPEG quantization table modification is presented. Instead of dividing cover-image into 8×8 blocks, nonoverlapping blocks of 16×16 pixels is used. Both theoretical anlysis and experiment results show that the new methods has larger steganography capacity and better stego-image quality, compared with the method of Jsteg and Chang＇s
ISSN:1007-1202
1993-4998
DOI:10.1007/s11859-011-0740-0