Title :
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
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;
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
DOI :
10.1109/ICCIC.2010.5705870
