计算机工程2012，Vol.38Issue(9)：111-113,3.DOI:10.3969/j.issn.1000-3428.2012.09.033
基于方向编码的离散余弦变换域图像隐写算法
Image Steganographic Algorithm Based on Direction Coding in Discrete Cosine Transform Domain
周婷 1毛倩1
作者信息
- 1. 上海理工大学光电信息与计算机工程学院,上海200093
- 折叠
摘要
Abstract
This paper proposes an image steganographic algorithm based on direction coding in Discrete Cosine Transform(DCT) domain. The secret image is transformed by 8 x 8 block DCT and quantized by using JPEG standard quantification table, then the DCTcoefficients are coding by the trip coding. And the cover image is transformed by 8 x 8 block DCT and quantized by using the improved quantification table, which raises the embedding capacity indirectly. The secret image data are embedded in the low frequency of the cover image's DCT coefficients by using the steganorgraphy algorithm based on direction coding. Experimental results prove that the steganorgraphic method has a great embedding capacity, makes the image containing secret image has a good visual effect, and it can resist to X2 analysis.关键词
隐写术/方向编码/行程编码/JPEG量化/离散余弦变换/x2分析Key words
steganorgraphy/ direction coding/ trip coding/ JPEG quantification/ Discrete Cosine Transform(DCT)/ X2 analysis分类
信息技术与安全科学引用本文复制引用
周婷,毛倩..基于方向编码的离散余弦变换域图像隐写算法[J].计算机工程,2012,38(9):111-113,3.
