Detection of manipulations on printed images to address crime scene analysis: A case study

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

doi:10.1016/j.forsciint.2015.03.020

Detection of manipulations on printed images to address crime scene analysis: A case study

Forensic Sci Int. 2015 Jun:251:e9-e14. doi: 10.1016/j.forsciint.2015.03.020. Epub 2015 Mar 30.

Authors

Irene Amerini¹, Roberto Caldelli², Alberto Del Bimbo³, Andrea Di Fuccia⁴, Anna Paola Rizzo⁴, Luigi Saravo⁴

Affiliations

¹ Media Integration and Communication Center, University of Florence, Florence, Italy. Electronic address: irene.amerini@unifi.it.
² Media Integration and Communication Center, University of Florence, Florence, Italy; National Interuniversitary Consortium for Telecommunications - CNIT, Florence, Italy.
³ Media Integration and Communication Center, University of Florence, Florence, Italy.
⁴ Presidenza Consiglio dei Ministri - Scientific and Technological Department, Rome, Italy.

PMID: 25851695
DOI: 10.1016/j.forsciint.2015.03.020

Abstract

Photographic documents both in digital and in printed format plays a fundamental role in crime scene analysis. Photos are crucial to reconstruct what happened and also to freeze the fact scenario with all the different present objects and evidences. Consequently, it is immediate to comprehend the paramount importance of the assessment of the authenticity of such images, to avoid that a possible malicious counterfeiting leads to a wrong evaluation of the circumstance. In this paper, a case study in which some printed photos, brought as documental evidences of a familiar murder, had been fraudulently modified to bias the final judgement is presented. In particular, the usage of CADET image forensic tool, to verify printed photos integrity, is introduced and discussed.

Keywords: CADET; Evidence manipulation; Image analysis; Image tampering detection.