Which simple methods to speed up OpenCV code exists? [closed]

asked 2018-12-26 02:05:24 -0600

egorii gravatar image

Instead of using compiler keys such as -mfpu NEON, VFPV3, etc -O3 -compile with TBB key and using setUseOptimized(true) function, Which simple methods to speed up OpenCV code exists?

I interested more in optimizations on mobile platforms, so Which simple methods to speed up OpenCV code exists?

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Closed for the following reason too subjective and argumentative by sturkmen
close date 2020-11-09 10:37:13.815197

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far too broad question ;(

berak gravatar imageberak ( 2018-12-26 02:11:29 -0600 )edit
1

Reduce the resolution of the images you are processing to the smallest acceptable size and use built-in OpenCV functions whenever possible as these are nearly all optimized under-the-hood. You can always do tricks to up-res results to original image size with relatively cheap guided filters. For example, do dense stereo or optical-flow at VGA or even QVGA and then use the fast bilateral solver to get back to original X MP resolution (with appropriate scaling). You might also be interested in the new Graph API.

Der Luftmensch gravatar imageDer Luftmensch ( 2018-12-28 10:10:22 -0600 )edit
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