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Grayscale Image Hiding Based on Modulus Function and Greedy Method

Hu Y-C., Tsou Ch-Ch., Su B-H.

Fundamenta Informaticae

2008

Vol. 86, nr 1-2

113-126

A novel LSB-based image-hiding scheme that embeds secret data into the grayscale cover image is proposed in this paper. Several LSB-based image hiding schemes such as simple LSB substitution technique, optimal LSB substitution technique, greedy LSB substitution technique, modulus LSB substitution technique had been proposed. To provide good image quality of the stego-image while requiring a low computational cost, the greedy method and modulus function are employed in the proposed scheme. According to the results, the proposed scheme provides better image quality of stego-image than the comparative schemes while consuming a low computational cost.