Chi-Pin Hsieh

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For some applications such as satellite and medical images, reversible data hiding is the best solution to provide copyright protection or authentication. Being reversible, the decoder can extract the hidden data and recover the original image without distortion. In this paper, a reversible data hiding scheme based on prediction error expansion is proposed.(More)
This paper proposes a simple data hiding technique for binary images. The binary cover image is partitioned into equal-sized, non-overlapping blocks and the watermark will be embedded into blocks by flipping pixels. The weight mechanism is also proposed to find the most suitable flip pixel in the block. In order to improve the visual quality of the stego(More)
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