Jeong-Chun Joo

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License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We herein advance a secure steganographic algorithm that uses a turnover policy and a novel adjusting process. Although the method of Wang et al. uses Pixel-Value Differencing (PVD) and their modulus function provides high(More)
—This paper proposes a steganalysis scheme using the difference histogram and image calibration. The message embedding makes the correlation with the neighboring pixels weaken and the random changes of the pixel values generate the block effects among the pixels. The proposed method crops a suspicious image by 1 pixel in a row or column direction and(More)
SUMMARY A secure method for steganography is proposed. Pixel-value differencing (PVD) steganography and bit-plane complexity segmen-tation (BPCS) steganography have the weakness of generating blocky effects and noise in smooth areas and being detectable with steganalysis. To overcome these weaknesses, a secure bit-plane based steganography method on the(More)
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