Coherent steganography using Segmentation and DCT

Author

Kumar, K. B Shiva ; Raja, K.B. ; Chhotaray, R.K. ; Pattnaik, Sabyasachi

Author_Institution

Dept. of TC, Sri Siddhartha Inst. of Technol., Tumkur, India

fYear

2010

fDate

28-29 Dec. 2010

Firstpage

1

Lastpage

6

Abstract

The important issue of modern communication is establishing secret communication while using public channel and is achieved by steganography. In this paper, we propose Coherent Steganographic Technique using Segmentation and Discrete Cosine Transform (CSSDCT). The cover image is divided into 8*8 blocks and DCT is applied on each block. The number of payload MSB bits is embedded into DCT coefficients of the cover image coherently based on the values of DCT coefficients. It is observed that the proposed algorithm has better PSNR, Security and capacity compared to the existing techniques.

Keywords

discrete cosine transforms; image segmentation; public key cryptography; steganography; DCT; coherent steganography; cover image; discrete cosine transform; payload MSB bits; public channel; secret communication; security; segmentation; Discrete cosine transforms; Discrete wavelet transforms; Image segmentation; PSNR; Payloads; Pixel; Coherent Data Hiding; Cover Image; DCT; Payload; Steganography; Stego Image;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Computing Research (ICCIC), 2010 IEEE International Conference on

Conference_Location

Coimbatore

Print_ISBN

978-1-4244-5965-0

Electronic_ISBN

978-1-4244-5967-4

Type

conf

DOI

10.1109/ICCIC.2010.5705870

Filename

5705870