I am working on a video processing application to calculate distance between two points using opencv Specs : Linear Pixels - 1600.

FOV - 100 mm

Resolution per pixel using above data : 62 micron

The application is realtime and I want to reduce the resolution by using subpixel mechanism.

Can you please suggest how can I reduce the resolution using subpixel mechanism in realtime?

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    $\begingroup$ what is a "subpixel mechanism"? What exactly is "realtime" in your case? (realtime means something different for different people) As it stands, your question is too broad. Is it really just "how do I scale a picture"? $\endgroup$ – Marcus Müller Nov 5 '17 at 20:05

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