Ting-Feng Chung

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A reversible information hiding scheme that is suitable for embedding small amounts of data is proposed in this paper. The secret data are transformed to base-k data stream, and each number is embedded into a pixel pair if the pixels' difference is within a certain range. Referring a predetermined table, the gray values of the pixel pair are modified so as(More)
This paper proposes a novel image authentication scheme, aiming at tampering detection for block truncation coding (BTC) compressed image. The authentication code is generated by using the random number generator with a seed, and the size of the authentication code is based on the user's requirement, with each BTC-compressed image block being used to carry(More)
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