Author(s): Chuang, JC (Chuang, J-C); Chang, CC (Chang, C-C); Hu, YC (Hu, Y-C) Title: Novel colour image-hiding scheme using error diffusion technique
Source: IMAGING SCIENCE JOURNAL, 56 (1): 11-22 FEB 2008 Language: English
Document Type: Article
Author Keywords: error diffusion; image hiding; data hiding; steganography; DES KeyWords Plus: STEGANOGRAPHIC METHOD; SUBSTITUTION; QUANTIZATION Abstract: A colour image-hiding scheme is presented which can hide multiple colour secret images into one colour host image of the same size imperceptibly. The proposed scheme uses the error diffusion technique to convert colour secret images into colour halftone images.
Then the results are encrypted and embedded in the colour host image. In order to provide the embedded image and the extracted image with good visual quality, a bit-adjustment
mechanism and a low-pass filter are employed in the embedding and extraction procedures, respectively. The scheme does not need to refer to the original host image. In addition, it satisfies the basic image-hiding requirements: high hiding capacity, imperceptibility and data security. The experimental results demonstrate that the proposed scheme can achieve a better stego-image quality as well as extracted secret image visual quality. In addition, compared with other colour hiding schemes, the scheme can embed more secret colour images.
Addresses: [Hu, Y-C] Providence Univ, Dept Comp Sci & Informat Engn, Taichung 43301, Taiwan; [Chang, C-C] Feng Chia Univ, Dept Comp Sci & Informat Engn, Taichung 40724, Taiwan; [Chuang, J-C] Asia Univ, Dept Informat Sci & Applicat, Taichung 41354, Taiwan Reprint Address: Hu, YC, Providence Univ, Dept Comp Sci & Informat Engn, 200 Chung Chi Rd, Taichung 43301, Taiwan.
E-mail Address: [email protected]
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Publisher: MANEY PUBLISHING
Publisher Address: STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND
ISSN: 1368-2199
DOI: 10.1179/174313107X176270
29-char Source Abbrev.: IMAGING SCI J ISO Source Abbrev.: Imaging Sci. J.
Source Item Page Count: 12
Subject Category: Imaging Science & Photographic Technology ISI Document Delivery No.: 265SZ
