Image manipulations became an everyday problem with the broad availability of cameras and professional image processing software. Nevertheless, a picture is still considered as a proof for an event in court, in the press, or in scientific publications. Journalists and authorities have therefore a big interest in validating the authenticity of an image or to be able to pinpoint the location that was manipulated. In this seminar, we study selected attacks on manipulated images, and demonstrate their performance with small demo programs. After an introductory presentation we fix dates and topics for each participant. At the end of this seminar, each participant can use the collected code as a "mini forensics toolbox". Some methods for forensic analysis of the images are: - Finding inserted elements via noise pattern analysis - Inconsistencies in illumination and shadow direction - Inconsistencies in JPEG compression artifacts - Sensor noise: stochastic fingerprints of digital cameras - Finding inserted elements via interpolation artifacts

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