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標題: Data+Hiding+Using+Image+Interpolation+and+Distortion+Estimation+Schemes
作者: 林宗瀚
關鍵字: Data hiding;資料隱藏;Image interpolation;Distortion estimation;Steganography;Steganalysis;影像內插;失真評估;僞裝學;僞裝分析
出版社: 國立中興大學工學院;Airiti Press Inc.
Project: 興大工程學刊, Volume 21, Issue 1, Page(s) 26-45.
This paper proposes a data hiding algorithm that provides high capacity, high visual quality, and reversibility for gray level image. Inspired from the image interpolation proposed by Jung et al., we use hybrid OPAP and LSB-matching to achieve goal of the data hiding. When the visual quality of the stego image is fixed, our method can predict the maximal capacity through an analysis of the Expected Variation per Pixel (EVP) technique. On the other hand, the EVP technique can predict an optimal visual qualityof the stego image when we fix the capacity of the stego image. We discover that Jung et al.'s method is incapable of correctly extracting secret data in some conditions. We correct their algorithm so that it can extract message without encountering any errors. Experimental results verify that our method provides high capacity and high visual quality. In addition, our scheme supports the feature of reversibility, requiring very little extra information to extract the secret message. Furthermore, the proposed method can withstand the RS steganalysis attack.

ISSN: 1017-4397
Appears in Collections:第21卷 第1期

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