Wednesday 26 April 2017

Google experiment promises clean nighttime shots from your phone

Many modern smartphones can take decent photos when the sun goes down, but their noisy, washed out images still don't hold a candle to the shots from a high-end DSLR. Google researcher Florian Kainz might have a way of closing that gap at least some of the time, however. In response to a challenge from one of his team members, he wrote an experimental Android app that helps take exceptionally clean photos in even the darkest conditions. The software gives you manual control over exposure, focus distance and ISO sensitivity, all of which are crucial to low-light photography. When you tap the shutter button, the app takes a burst of up to 64 photos. After that, it's a matter of some calculation: Kainz eliminates the noise by computing the mean of the frames, and can remove artifacts by subtracting the mean of frames shot with tape over the sensor.

Source: Google Research Blog


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