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Explore GizmagInvisible Flash sheds new light on photography in the dark
A pair of images are captured at a blur-free shutter speed, one using a multi-spectral flash (F), the other using ambient illumination (A) which in this case is 1/100th of that required for a correct exposure. The pair are combined to give an output image (R) which is of comparable quality to a reference long exposure shot (L).
Article Summary
As technology becomes available to help those wishing to avoid the annoying flash photography of the paparazzi get some payback, researchers Dilip Krishnan and Rob Fergus from New York University have developed a system for taking dazzle-free photos in poor lighting conditions which could result in celebs not even knowing they're being photographed. Named dark light flash photography by its creators, the system uses light waves beyond our visible range and special software and algorithms to produce photos comparable in quality to a long exposure shot.
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