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13 questions

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2014-02-12 04:13:13 -0600 vlad_tepesch

why is cv::invert so incredibly slow?

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2014-06-05 05:23:25 -0600 pengpotter

detecting faces function "cvHaarDetectObjects" took 13s

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2014-09-29 12:04:23 -0600 arp

Is it normal for "new VideoCapture()" to take AGES?

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2015-10-11 02:21:29 -0600 blDraX

First use of UMat does not run on GPU?

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2016-11-01 18:42:31 -0600 alecs26

Slow capture with bad lighting

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2016-12-13 03:30:51 -0600 urielka

OpenCV slow on retina screen vs external screen

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2017-04-04 03:26:52 -0600 hanban

Python + OpenCV + Tkinter playing video help

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2017-09-30 13:07:45 -0600 cjacquel flag of France

Access Mat elements in a loop in Android

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2018-01-27 07:41:37 -0600 alex001

Extra delay when copying UMat to Mat

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2018-05-28 12:00:12 -0600 djerrund

View specific frame from videofile [extremely slow]

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2018-09-05 13:09:09 -0600 gnackwatschn

Using OPENCL is slower than normal version

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2019-03-04 06:39:12 -0600 foreign222

Linux video capture 10 seconds delay

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