1:1 pixel mapping

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1:1 pixel mapping is a video scaling technique used in some display devices, such as LCD monitors. A monitor that has been set to 1:1 pixel mapping will try to display an input source without scaling it, such that each pixel received is mapped to a single pixel on the monitor. This will often result in a black border around the video displayed unless the input resolution is higher or the same as the monitor's native resolution. This technique is often helpful if you want to stop a video being stretched and distorted by the monitor.