Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/16539
Title: | Fast Fragile Watermark Embedding and Iterative Mechanism With High Self-Restoration Performance |
Authors: | Nandi, AK Bravo-Solorio, S Calderon, F Li, C-T |
Keywords: | Fragile;watermarking;Self-restoration;Image;Authentication;Erasure |
Issue Date: | 2017 |
Publisher: | Elsevier |
Citation: | Digital Signal Processing |
Abstract: | This paper presents a new algorithm to reduce significantly the computational cost of one of the best methods with self-recovery capabilities in the fragile watermarking literature. This is achieved by generating two sequences of reference bits associated to the 5 most significant bit-planes (MSBPs) of the image. The reference bits and some authentication bits are then allocated to the 3 least significant bit-planes (LSBPs) of the image. The receiver uses the authentication bits to localise altered pixel-blocks and then executes an iterative restoration mechanism to calculate the original value of the watermarked pixels. Experimental results demonstrate that the embedding method executes significantly faster compared to the state-of-the-art method while achieving a high restoration performance. |
URI: | http://bura.brunel.ac.uk/handle/2438/16539 |
ISSN: | 1051-2004 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
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FullText.pdf | 1.84 MB | Adobe PDF | View/Open |
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