Distinguishing the kind of sensor which has acquired a digital image could be crucial in many scenarios where digital forensic techniques are called to give answers. In this paper a new methodology which permits to determine if a digital photo has been taken by a camera or has been scanned by a scanner is proposed. Such a technique exploits the specific geometrical features of the sensor pattern noise introduced by the sensor in both cases and by resorting to a frequency analysis can infer if a periodicity is present and consequently which is the origin of the digital content. Experimental results are presented to support the theoretical framework. © ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2009.
CITATION STYLE
Caldelli, R., Amerini, I., & Picchioni, F. (2009). Distinguishing between camera and scanned images by means of frequency analysis. In Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering (Vol. 8 LNICST, pp. 95–101). https://doi.org/10.1007/978-3-642-02312-5_11
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