Siang-Ru Liao

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In recent years, many lossless information hiding techniques have been proposed, such as difference expansion, integer transformation method, histogram modification and so on. Histogram modification modifies the maximum pixel value of the histogram which generated from a host image to embed secret messages. The image quality of this method is quite good but(More)
This paper proposes an information hiding method based on similar sample block. The proposed scheme divides a standard contrast image into several blocks, called sample blocks, and takes the sample block as the contrast benchmark for embedding the secret information. This method provides a simple embedding process but a better result. The standard image can(More)
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