and introduction of new digital technologies, digital images are key sources of evidence for investigations. Digital images are source of information: in addition to the visual content, metadata often contain precise information about when, where and who captured the image.
Billions of images are uploaded to the internet and shared on social media platforms every day. Investigators are constantly faced with the task of trying to identify the person who posted the original photo on the internet. Therefore, it is important to have the appropriate tools to link photographs to a specific camera and consequently to a suspect and ensuring its trustworthiness in today’s investigations.
Image analysis and tampering detection software is the leading forensic software used to unveil processing evidence in digital image.
Image forensics is based on a fundamental assumption that every processing step in the life cycle of an image leaves distinctive traces in the image itself. These traces can be used to reconstruct the processing cycle, identify the image’s originating device, and to possibly determine manipulated segments of a picture and elements of an image. This allows to open images saved in most commonly used formats (JPEG, HEIF, PNG, TIFF, BMP, etc.) and easily select several algorithms and tools to perform diverse investigation on the image.