Still Searching…

Von 2012 bis 2023 beschäftigte sich der Diskurs-Blog des Fotomuseum Winterthur interdisziplinär mit allen Aspekten der Fotografie und ihrer Rolle in der visuellen Kultur. Die insgesamt fast 50 eingeladenen Blogger_innen von Still Searching…  diskutierten fotografische Medien und Formen als Bestandteil komplexer technologischer, kapitalistischer und ideologischer Netzwerke und verhandelten aktuellste und relevante Fragestellungen rund um die Fotografie.

Blog series: Photo Forensics

Hany Farid | 15.10. – 15.12.2015
Photo Forensics

From October 15 until mid-December, Hany Farid will shed light on the ubiquity of image manipulation and the nature of trust in photography from the point of view of photo forensics. He will discuss digital forensic techniques used to detect various forms of tampering in visual material that he argues may have the potential to restore — at least partially — our faith in photography.

Photo Forensics: As Seen on CSI

Freitag, 27.11.2015
<p>A digital camera contains a vast array of sensor cells, each with a photo detector and an amplifier. The photo detectors measure incoming light and transform it into an electrical signal. The electrical signals are then converted into pixel values. In an ideal camera, there would be a perfect correlation between the amount of light striking the sensor cells and the pixel values of the digital image. Real devices have imperfections, however, and these imperfections introduce noise in the image.</p>