Title
Data-Hiding for Halftone Images Using an Improved CPT scheme.
Abstract
In publishing applications, it is advantageous to embed data in halftone images. The CPT scheme (Chen-Pan-Tseng, 2000) is a steganographic data hiding scheme that was proposed for binary images, e. g., facsimiles. The CPT scheme uses a secret key and weight matrix to protect the hidden data and can hide as many as r = left perpendicularlog(2)(m x n + 1)right perpendicular bits of data in the image by changing at most 2 bits in the image. Our proposed scheme also uses a secret key to protect it from being compromised and a weight matrix to increase the data hiding rate. Our scheme improves the performance of the CPT scheme by using the simple principle of splitting each block into two parts. Our proposed scheme is called improved CPT (ICPT) and has a very high embedding capacity compared to previous schemes. Experimental results demonstrate that our proposed scheme generally has higher performance than previous schemes.
Year
DOI
Venue
2013
10.3837/tiis.2013.02.013
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS
Keywords
Field
DocType
CPT,Data Hiding,DHSPT,Error Diffusion,Halftone Images,ICPT
Steganography,Embedding,Computer science,Matrix (mathematics),Binary image,Error diffusion,Information hiding,Algorithm,Halftone,Hidden data
Journal
Volume
Issue
ISSN
7
2
1976-7277
Citations 
PageRank 
References 
3
0.55
1
Authors
4
Name
Order
Citations
PageRank
Phan Trung Huy1268.53
Nguyen Hai Thanh2112.87
C. Kim320529.15
Ching-Nung Yang41480100.27