Adaptive Steganography Based on Covariance and Dct

被引：0

作者：

Sathisha, N. ^{[1
]}

Sreedharan, Swetha ^{[2
]}

Ujwal, R. ^{[2
]}

D'sa, Kiran ^{[2
]}

Danda, Aneeshwar R. ^{[2
]}

Babu, K. Suresh ^{[3
]}

Raja, K. B. ^{[3
]}

Venugopal, K. R. ^{[3
]}

Patnaik, L. M. ^{[4
]}

机构：

[1] RL Jalappa Inst Technol, Dept Elect & Commun Engn, Doddaballapura 561203, India

[2] BMSIT, Dept Elect & Commun Engn, Bangalore, Karnataka, India

[3] Bangalore Univ, Univ Visvesvaraya Coll Engn, Dept Comp Sci & Engn, Bangalore 560001, Karnataka, India

[4] Def Inst Adv Technol, Pune, Maharashtra, India

来源：

INFORMATION TECHNOLOGY AND MOBILE COMMUNICATION | 2011年 / 147卷

关键词：

Covariance; Cover Image; DCT; Payload; Steganography; IMAGES;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The steganography is a covert communication to transfer confidential information over an internet. In this paper we propose Adaptive Steganography based on Covariance and Discrete Cosine Transform (ASCDCT) algorithm. The Average Covariance of the Cover Image (ACCI) is computed. The ACCI of 0.15 is considered as the threshold value. The cover image is segmented into 8*8 cells and DCT is applied to derive coefficients. The payload Most Significant Bits (MSBs) are embedded into the cover image based on ACCI and DCT coefficients. It is observed that the capacity, Peak Signal to Noise Ratio (PSNR) and security is better compared to the existing algorithm.

引用

页码：273 / +

页数：3

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