Abstract
This paper presents a novel steganography technique which combines Discrete Cosine Transform (DCT) and Least Significant Bit (LSB). The objective is to maximize the capacity and invisibility of the secret image with minimal modification to the cover image (at most k-bits per block). The secret image is transformed to frequency domain using DCT. An algorithm is employed to construct the optimum quantization to embed the DCT coefficients in k-bits. The k-bits are then hidden in the LSBs of the cover image. The performance (capacity and peak signal-to-noise ratio) of the proposed method is compared with LSB.
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© 2012 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Mohd, B.J., Abed, S., Al-Naami, B., Alouneh, S. (2012). Image Steganography Optimization Technique. In: Das, V.V., Ariwa, E., Rahayu, S.B. (eds) Signal Processing and Information Technology. SPIT 2011. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 62. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32573-1_35
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DOI: https://doi.org/10.1007/978-3-642-32573-1_35
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-32572-4
Online ISBN: 978-3-642-32573-1
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