Reversible data hiding methods in integer wavelet transform Online publication date: Thu, 05-Dec-2019
by Amishi Mahesh Kapadia; Nithyanandam Pandian
International Journal of Information and Computer Security (IJICS), Vol. 12, No. 1, 2020
Abstract: Reversible data hiding is art of concealing secret information such that cover media and secret information are both recovered without any information loss. In this paper high frequency sub-bands of integer wavelet transform are used for data embedding. All coefficients are used for embedding and to improve the security the embedding is carried out in frequency domain using spiral, sequential and random embedding method. The main objective of this research is to hide the maximum data with minimal distortion and to attain reversible hiding phenomenon both in cover and secret image. The experimental result shows the improved capacity, imperceptibility and complete reversibility attained on standard and medical images. The parameter of robustness has not been vastly studied for reversible data hiding and an attempt is made to check the same for basic attacks and results shows that it can withstand geometrical attack.
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