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dc.contributor.authorWu, N.I.en_US
dc.contributor.authorFu, K.C.en_US
dc.contributor.authorWang, C.M.en_US
dc.description.abstractThe purpose of this paper is to present a novel data hiding technique which is based on pixel-value differencing and modulus function and is capable of reducing the distortion of stego image for graylevel image. In the proposed scheme, we take two close pixels as a block to hide secret data where the payload of each block is determined by pixel-value. differencing. In order to obtain a better stego-image quality, we hide more data into the blocks with the higher difference value than that the blocks with the smaller difference value. In data embedding procedure, we propose a novel technique which is capable of reducing the distortion of stego image with the minimal. In our new scheme, we adopt the non-decimal number system to represent the secret data, and utilize the modulus function to minimize the possible distortion after hiding data. Since there are six degrees of payload are used in our method, we present the revision method to ensure the consistency of degree for each block. Therefore, the proposed scheme is blind because the original image is unnecessary in the data extraction. The experimental results demonstrate that the proposed scheme is greatly reducing distortion and its performance is better than that of those existing schemes.en_US
dc.relationJournal of Internet Technologyen_US
dc.relation.ispartofseriesJournal of Internet Technology, Volume 11, Issue 7, Page(s) 1071-1081.en_US
dc.subjectData hidingen_US
dc.subjectPixel-value differencingen_US
dc.subjectModulus functionen_US
dc.subjectsteganographic methoden_US
dc.subjectlsb substitutionen_US
dc.titleA Novel Data Hiding Method for Grayscale Images Based on Pixel-Value Differencing and Modulus Functionen_US
dc.typeJournal Articlezh_TW
item.openairetypeJournal Article-
item.fulltextno fulltext-
Appears in Collections:資訊科學與工程學系所
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