Title :
Steganography using JPEG-compressed images
Author :
Tseng, Hsien-Wen ; Chang, Chin-Chen
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., National Chung Cheng Univ., Chaiyi, Taiwan
Abstract :
In this paper, a novel steganographic method based on JPEG is proposed. We take advantage of the quantization error resulting from processing the JPEG-compressed image with two different scaling factors. One of the scaling factors is used to control the bit rate of the stego-image while the other is used to guarantee the quality of the stego-image. Our experimental results show that the proposed steganographic method can provide a high information hiding capacity and successfully control the compression ratio and distortion of the stego-image.
Keywords :
data compression; data encapsulation; image coding; JPEG-compressed images; compression ratio; image distortion; information hiding capacity; quantization error; scaling factors; steganography; stego-image; Bit rate; Communication system control; Cryptography; Decoding; Discrete cosine transforms; Image quality; Information security; Internet; Quantization; Steganography;
Conference_Titel :
Computer and Information Technology, 2004. CIT '04. The Fourth International Conference on
Print_ISBN :
0-7695-2216-5
DOI :
10.1109/CIT.2004.1357167
