Anaface - Facial Beauty Analysis - Score Your Face. Software to Rate How Drastically Photos Are Retouched. Wilhelm Imaging Research. Researcher’s Analysis of al Qaeda Images Reveals Surprises — UPDATED. Neal Krawetz, a researcher and computer security consultant, gave an interesting presentation today at the BlackHat security conference in Las Vegas about analyzing digital photographs and video images for alterations and enhancements.
Using a program he wrote (and provided on the conference CD-ROM) Krawetz could print out the quantization tables in a JPEG file (that indicate how the image was compressed) and determine the last tool that created the image — that is, the make and model of the camera if the image is original or the version of Photoshop that was used to alter and re-save the image. Comparing that data to the metadata embedded in the image he could determine if the photo was original or had been re-saved or altered. Then, using error level analysis of an image he could determine what were the last parts of an image that were added or modified. You can see the difference in the two pictures (below right) of a bookshelf. You can also view his BlackHat presentation here (PDF). Swarm approach to photography. Public release date: 1-Feb-2008 [ Print | E-mail Share ] [ Close Window ] Contact: Albert Anga.ang@inderscience.com Inderscience Publishers A new approach to cleaning up digital photos and other images has been developed by researchers in the UK and Jordan.
The research, published recently in Inderscience's International Journal of Innovative Computing and Applications uses a computer algorithm known as a PSO (Particle Swarm Optimization) to intelligently boost contrast and detail in an image without distorting the underlying features. Malik Braik and Alaa Sheta of the Department of Information Technology, at Al-Balqa Applied University, in Salt, Jordan, working with Aladdin Ayesh in the Division of Computer Engineering, at De Montfort University, Leicester, UK, explain that the Particle Swarm Optimization (PSO) algorithm represents an entirely new approach to solving all kinds of optimization problems. PSO is based on a mathematical model of the social interactions of swarms.
4N6site.com Forensic Image Processing. International Journal of Innovative Computing and Applications (IJICA) - Recent Issues. This site uses some unobtrusive cookies to store information on your computer.
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