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In 2010, Chen et al. proposed a data hiding scheme with high payload and good visual quality. The edge information is detected and most of the secret bits are embedded into the edge area. An index pixel is chosen to record the edge information for each block. However, the embedding space will decrease because of the index pixel. Thus, we proposed a data hiding that enhances the visual quality based...
This paper proposes a data hiding with high visual quality in stego-images so that malicious invaders are hardly aware of the existence of the embedded message. Due to high visual quality and good embedding capacity, we also apply our scheme with region of importance (ROI) for protecting the important part of an image. The overload, location map of ROI, is compressed with run length encoding (RLE)...
In this paper, a novel data hiding method employing reduplicating embedding is proposed. This method uses seven most significant bits to embed two secret digits and sets the least significant bit as an indicator. Therefore, two secret digits can be embedded into one pixel-group without using the original cover-image and extra data. Because of repeating to embed secret data, our method can provide...
Due to the instability of and possible attacks on the networks, image files transmitted through the networks may encounter losses of data. Such losses may be recovered by retransmitting or by using image processing techniques. The latter has an obvious advantage that the network traffic could be reduced. In this paper, a self-embedding image recovery algorithm based on adaptively rearranged codebooks...
Recently, many researchers have proposed reversible data embedding schemes in which payload can be added and extracted to digital multimedia. In this paper, we propose a reversible data embedding scheme with high payload capacity, low distortion, and improved image security. The experimental results show that our proposed scheme can embed one bit per pixel in the best case. The proposed scheme has...
In this paper, we use dynamic programming strategy to find an optimal solution to the EMD (exploiting modification direction) embedding method proposed by Zhang et al. to carry (2n+1)-ary secret digits. An embedding/extraction function defined as a weighted sum function modulo (2n+1) is put forward in the EMD embedding method for secret digit embedding/extraction to/from an image. Among all the different...
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