Forensic Science, Medicine, and Pathology

, Volume 3, Issue 3, pp 210–216

Writing impressions revealed by scanners

Original Paper

DOI: 10.1007/s12024-007-0015-4

Cite this article as:
Strach, S.J. Forensic Sci Med Pathol (2007) 3: 210. doi:10.1007/s12024-007-0015-4
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Abstract

Heavily impressed writing impressions in paper and impressions in glossy brochures are often difficult or impossible to develop using the electrostatic detection apparatus (ESDA, manufactured by Foster and Freeman). Oblique and specular reflectance lighting can be used but they are time-consuming techniques and not always very successful. This paper briefly describes a scanning and image-processing method for producing excellent images of such writing impressions.

Keywords

Forensic document examinationWriting impressionsScannerImage processing

Copyright information

© Humana Press Inc. 2007

Authors and Affiliations

  1. 1.Forensic Document Services Pty LtdFyshwickAustralia