Abstract
Data hiding technologies are applicable in various application technologies. Generally, more the hiding volume of data is the better. One of the current methods embeds the data of one bit per two coefficients on the frequency domain that orthogonal converts the image. This paper proposes the method of embedding two bits per two DCT coefficients aiming to increase the embedding volume of data on the current method. First bit of embedding data is represented by amplitude relation between two DCT coefficients. Second bit is represented by mean of two DCT coefficients. These two use embedding strength parameters P and Q, respectively. These parameters were decided by preliminary experiment. Experimental results show that the proposed scheme achieved good image quality and robustness against JPEG data compression.
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Fujimura, M., Takano, T., Baba, S., Kuroda, H. (2010). New Data Hiding Scheme Using Method of Embedding Two Bits Data into Two DCT Coefficients. In: Kim, Th., Pal, S.K., Grosky, W.I., Pissinou, N., Shih, T.K., Ślęzak, D. (eds) Signal Processing and Multimedia. MulGraB SIP 2010 2010. Communications in Computer and Information Science, vol 123. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17641-8_20
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DOI: https://doi.org/10.1007/978-3-642-17641-8_20
Publisher Name: Springer, Berlin, Heidelberg
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