An efficient block-based fragile watermarking system for tamper localization and recovery

Document Type

Article

Publication Date

1-1-2011

Abstract

In this paper we present an efficient block-based fragile watermarking system for tamper localization and recovery of images. We apply the Cyclic Redundancy Checksum (CRC) to authenticate the feature of a block stored in a pair of mapping blocks. The proposed scheme localizes the tampered area irrespective of the gray value, and the detection strategy is designed in such a way to reduce false alarms. It can be applied on grayscale and color images. We conduct malicious attacks using different cropping patterns, sizes, and shapes. Experimental results show that the proposed system outperforms the existing schemes in terms of the recovery rate of modified blocks, the support against the vector quantization attack, the localization of the tampered area, and the reduction of false alarms. © 2011 TSI® Press Printed in the USA.

Identifier

84855305740 (Scopus)

Publication Title

Intelligent Automation and Soft Computing

External Full Text Location

https://doi.org/10.1080/10798587.2011.10643147

e-ISSN

2326005X

ISSN

10798587

First Page

257

Last Page

267

Issue

2

Volume

17

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