Processing video streaming

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Suppose, you have to process (select the objects to blur the image, etc.), streaming (24fps, 1280x720) videos. Out at least 22.118.400 of interace per second. How to optimize such processes? About type libraries OpenCV know samopisny decision.
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Yes, for processing large amounts of data, it is useful to use the GPU. Specifically — have had a positive experience with NVidia CUDA:
In this case, the easiest way not to invent bicycles, and to work with video as with video, writing a custom filter for video library ffmpeg, for example.
\ here is documentation on how to do it.
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