Digital image forensics using EXIF data of digital evidence

Pie Information Extractor is one of the applications to data mining from digital photos. The global position system (GPS) with suitable connection with digital technologies enables to put additional layer to data. Exif (Exchangeable image file) information of photographs contains various information, such as date and time the picture was taken, type of camera used, types of settings on the camera, GPS Coordinates where the picture was taken, etc. Today not only digital cameras but also various devices with camera technology could put geotagged layers to photos. This information could be linked with location, camera model name, revised software, created date. Cyberattacks used not only the image layer but EXIF data are very useful. For example, the time and date of geotagged information are potentially useful for thieves and also criminologists on the other side. More and more photos are often shared on social media without any caution about private information. This paper presents another approach of image visual recognition in the interconnection with geotagged information.