With the development of information technology and the availability of image acquisition and editing
tools, the use of these devices has become within a reach to everyone. Visual media has expressive potential and due to this feature, it is used to exploit and convey meaningful information. Consequently, videos and images were in last decades a common and a general source of evidence including everyday life controversies. The image processing tools ease modification of image contents that such an effect is usually imperceptible, meaning that, they can tamper and edit these contents without leaving visually detectable traces. As a result, editing and doctoring digital images for malicious purposes have become easy and more common than ever which perturbed our faith in visual media. Ironically, the renown English language adage “A picture is worth a thousand words” is overwhelmingly challenged as a picture can be “worth a thousand lies”. Digital image forensics is a branch of multimedia security with the aim to contrast and expose malicious image manipulations to tamper the visual cover image or to use it to pass secret communication. This talk sheds light into this fascinating area of computer science and gently introduces the topic to the audience with some vivid examples.
About this LectureNumber of Slides: 35
Duration: 60 minutes
Languages Available: Arabic, English
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