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Updated: May 9, 2026
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Chromatographic Fingerprinting by Template Matching for Data Collected by Comprehensive Two-Dimensional Gas Chromatography
Published on: September 2, 2020
A simple computer-assisted quantification of contrast in a fingerprint
Szymon Matuszewski1, Michał Szafałowicz1
1Laboratory of Criminalistics, Adam Mickiewicz University, Św. Marcin 90, 61-809, Poznań, Poland.
Journal of Forensic Sciences
|July 20, 2013
Summary
A new method quantifies fingerprint contrast using image histograms. This technique is reliable across different users and fingerprint types but sensitive to scanner resolution and model.
Area of Science:
- Forensic Science
- Image Analysis
Background:
- Quantifying fingerprint contrast is crucial for forensic analysis.
- Existing methods may be subjective or lack standardization.
Purpose of the Study:
- To propose a simple, objective method for quantifying fingerprint contrast.
- To validate the method's reliability and identify influencing factors.
Main Methods:
- Utilized Adobe Photoshop's histogram function on scanner-acquired fingerprint images.
- Defined contrast as the average intensity difference between fingerprint ridges and valleys.
- Validated using black inked prints and aluminum powder developed marks.
Main Results:
- The method provided coherent and interpretable quantitative contrast values for both fingerprint types.
- Measurements showed no significant rater-dependent errors or test-retest variability.
- Contrast measurements were significantly affected by image resolution and scanner model.
Conclusions:
- The proposed histogram-based method offers a reliable way to quantify fingerprint contrast.
- While robust against user variability, the method's accuracy is dependent on imaging equipment.
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