A DFT-Based Analysis to Discern Between Camera and Scanned Images-Reference-Cited by-同舟云学术

A DFT-Based Analysis to Discern Between Camera and Scanned Images

Published:2010-01 Issue:1 Volume:2 Page:21-29
ISSN:1941-6210
Container-title:International Journal of Digital Crime and Forensics
language:en
Short-container-title:

Author:

Caldelli Roberto¹,Amerini Irene¹,Picchioni Francesco¹

Affiliation:

1. University of Florence, Italy

Abstract

Digital images are generated by different sensors, understanding which kind of sensor has acquired a certain image could be crucial in many application scenarios where digital forensic techniques operate. In this article a new methodology which permits to establish if a digital photo has been taken by a photo-camera or has been scanned by a scanner is presented. The specific geometrical features of the sensor pattern noise introduced by the sensor are investigated by resorting to a DFT (Discrete Fourier Transform) analysis and consequently the origin of the digital content is assessed. Experimental results are provided to witness the reliability of the proposed technique.

Publisher

IGI Global

Subject

Software

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