Hiding traces of median filtering in digital images
Marco Fontani, Mauro Barni · 2012
Detection of median filtering is an important task in image forensics, since this operator is frequently used both for be-nign and malicious processing. In this paper we introduce a counter-forensic technique that allows to conceal traces left by median filtering while preserving the quality of the pro-cessed image. The work aims to hide traces searched by state-of-the-art tools, and does not require JPEG compression of the image to hide traces. Index Terms — Image forensic, counter-forensic, anti-forensic, median filtering detection.