Title :
New Channel Selection Rule for JPEG Steganography
Author :
Huang, Fangjun ; Huang, Jiwu ; Shi, Yun-Qing
Author_Institution :
Sch. of Inf. Sci. & Technol., Sun Yat-Sen Univ., Guangzhou, China
Abstract :
In this paper, we present a new channel selection rule for joint photographic experts group (JPEG) steganography, which can be utilized to find the discrete cosine transform (DCT) coefficients that may introduce minimal detectable distortion for data hiding. Three factors are considered in our proposed channel selection rule, i.e., the perturbation error (PE), the quantization step (QS), and the magnitude of quantized DCT coefficient to be modified (MQ). Experimental results demonstrate that higher security performance can be obtained in JPEG steganography via our new channel selection rule.
Keywords :
data encapsulation; discrete cosine transforms; image coding; quantisation (signal); steganography; JPEG steganography; channel selection rule; data hiding; discrete cosine transform coefficients; joint photographic experts group; minimal detectable distortion; perturbation error; quantization step; quantized DCT coefficient; Discrete cosine transforms; Educational institutions; Image coding; Materials; Quantization; Security; Transform coding; Channel selection; JPEG; magnitude; perturbation error (PE); quantization step (QS);
Journal_Title :
Information Forensics and Security, IEEE Transactions on
DOI :
10.1109/TIFS.2012.2198213
