Dr. Irene Amerini Profile

Dr. Irene Amerini

at Univ degli Studi di Firenze

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Proceedings Article | 19 February 2014 Paper

Copy-move forgery detection from printed images

Irene Amerini, Roberto Caldelli, Alberto Del Bimbo, Andrea Di Fuccia, Luigi Saravo, Anna Paola Rizzo

Proceedings Volume 9028, 90280Y (2014) https://doi.org/10.1117/12.2039509

KEYWORDS: Printing, Scanners, Digital cameras, Cameras, Galactic astronomy, Sensors, Image processing, Analog electronics, Image resolution, Feature extraction

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Counterfeiting digital images through a copy-move forgery is one of the most common ways of manipulating the semantic content of a picture, whereby a portion of the image is copy-pasted elsewhere into the same image. It could happen, however, instead of a digital image only its analog version may be available. Scanned or recaptured (by a digital camera) printed documents are widely used in a number of different scenarios, for example a photo published on a newspaper or a magazine. In this paper, the problem of detecting and localizing copy-move forgeries from a printed picture is focused. The copy-move manipulation is detected by verifying the presence of duplicated patches in the scanned image by using a SIFT-based method, tailored for printed image case. Printing and scanning/recapturing scenario is quite challenging because it involves different kinds of distortions. The goal is to experimentally investigate the requirement set under which reliable copy-move forgery detection is possible. We carry out a series of experiments, to pursue all the different issues involved in this application scenario by considering diverse kinds of print and re-acquisition circumstances. Experimental results point out that forgery detection is still successful though with reduced performances, as expected.

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