Abstract
Digital watermarking using Difference Expansion (DE) is quite popular to embed reversibly the data followed by recovery of the original image. According to this algorithm, the least significant bit (LSB) of inter-pixel differences (between a pair of neighboring pixel) is used to embed data. It is seen that none of the DE works focuses on structural information retentions for the watermarked image at high embedding capacity. Moreover, security measure of the hidden data is not investigated under distortion constraint scenario. To this aim, a modification in DE is proposed that not only increase embedding space (hence, watermark payload) but also makes little change in structure and contrast comparison (imperceptibility) under similar luminance background. A simple fuzzy function is used to classify the image content into smooth, texture and edge region followed by adaptive distortion control. Modification also makes little change in relative entropy between the host and the watermarked data that leads to better security of the hidden data.
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Maity, H.K., Maity, S.P., Maity, D. (2013). Modified Difference Expansion for Reversible Watermarking Using Fuzzy Logic Based Distortion Control. In: Meghanathan, N., Nagamalai, D., Chaki, N. (eds) Advances in Computing and Information Technology. Advances in Intelligent Systems and Computing, vol 177. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31552-7_89
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DOI: https://doi.org/10.1007/978-3-642-31552-7_89
Publisher Name: Springer, Berlin, Heidelberg
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