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Please use this identifier to cite or link to this item: http://hdl.handle.net/10609/16681
Title: A novel semi-fragile forensic watermarking scheme for remote sensing images
Authors: Serra Ruiz, Jordi
Megías Jiménez, David
Keywords: Hyperspectral images
Semi-fragile watermarking
Forensics
Image authentication
Tampering detection
Issue Date: 1-Sep-2011
Publisher: Taylor and Francis
Type: Article
Abstract: A semi-fragile watermarking scheme for multiple band images is presented. We propose to embed a mark into remote sensing images applying a tree structured vector quantization approach to the pixel signatures, instead of processing each band separately. The signature of themmultispectral or hyperspectral image is used to embed the mark in it order to detect any significant modification of the original image. The image is segmented into threedimensional blocks and a tree structured vector quantizer is built for each block. These trees are manipulated using an iterative algorithm until the resulting block satisfies a required criterion which establishes the embedded mark. The method is shown to be able to preserve the mark under lossy compression (above a given threshold) but, at the same time, it detects possibly forged blocks and their position in the whole image.
Description: Peer-reviewed
Language: eng
URI: http://hdl.handle.net/10609/16681
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