Abstract
Steganography is the science of hiding data into innocuous objects such that the existence of the hidden data remains imperceptible to an adversary. To obtain larger embedding capacity and imperceptible stegoimages, this paper proposes a new image steganography using wavelet contrast and modulus operation based on the visual characteristics that human are not sensitive to rapid change area and dark area. The method exploits the wavelet contrast value of image block to estimate how many bits will be embedded into the image block, and embeds secrete data by way of modulus operation. Our experimental results show that the proposed approach provides both larger embedding capacity and higher image quality.
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Acknowledgments
This work is supported by the National Natural Science Foundation of China (71471148), the National Natural Science Foundation of Gansu Province (1506RJZA130).
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Wei, W., Wen, Y. (2016). A Novel Image Steganography Using Wavelet Contrast and Modulus Operation. In: Huang, DS., Jo, KH. (eds) Intelligent Computing Theories and Application. ICIC 2016. Lecture Notes in Computer Science(), vol 9772. Springer, Cham. https://doi.org/10.1007/978-3-319-42294-7_37
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DOI: https://doi.org/10.1007/978-3-319-42294-7_37
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