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28 questions

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209
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1
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2020-07-20 11:58:48 -0600 sturkmen flag of Turkey

how to find example media files

775
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1
answer
1
vote
2020-04-02 12:56:43 -0600 crackwitz

OpenCV VideoCapture 2fps

632
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1
answer
no
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2019-06-12 04:05:45 -0600 supra56 flag of Canada

DNN CPP - TOO SLOW VIDEO - GENDERNET

542
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no
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no
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2019-03-04 06:39:12 -0600 foreign222

Linux video capture 10 seconds delay

1k
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no
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no
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2018-09-05 13:09:09 -0600 gnackwatschn

Using OPENCL is slower than normal version

1k
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no
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no
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2018-05-28 12:00:12 -0600 djerrund

View specific frame from videofile [extremely slow]

1k
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no
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no
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2018-01-27 07:41:37 -0600 alex001

Extra delay when copying UMat to Mat

1k
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1
answer
4
votes
2018-01-05 06:36:40 -0600 LBerger

Slow matrix multiplication when using OpenCL enabled OpenCV

246
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no
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no
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2017-09-30 13:07:45 -0600 cjacquel flag of France

Access Mat elements in a loop in Android

15k
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no
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2017-04-04 03:26:52 -0600 hanban

Python + OpenCV + Tkinter playing video help

1k
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1
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no
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2017-02-22 09:21:33 -0600 mirnyy

Computing disparity map is very SLOW!

829
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no
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no
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2016-12-13 03:30:51 -0600 urielka

OpenCV slow on retina screen vs external screen

101
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no
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no
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2016-11-01 18:42:31 -0600 alecs26

Slow capture with bad lighting

1k
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1
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no
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2016-03-09 11:52:56 -0600 thierrypin

opencv slow on ubuntu

993
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1
answer
3
votes
2015-10-13 20:05:40 -0600 tuannhtn flag of Vietnam

SVM training much slower in version 3.0.0

2k
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no
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no
votes
2015-10-11 02:21:29 -0600 blDraX

First use of UMat does not run on GPU?

3k
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2
answers
3
votes
2015-08-07 07:05:56 -0600 sturkmen flag of Turkey

How to speed up seamlessClone? (incredibly slow)

221
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no
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no
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2015-02-19 11:49:38 -0600 boudy

OpenCV operations are slower on iPad Air 2 [closed]

2k
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no
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2014-09-29 12:04:23 -0600 arp

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

1k
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no
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2014-06-05 05:23:25 -0600 pengpotter

detecting faces function "cvHaarDetectObjects" took 13s

1k
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no
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no
votes
2014-03-18 23:08:55 -0600 rubinstu

Frame capture is needlessly slow [closed]

1k
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no
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2
votes
2014-02-12 04:13:13 -0600 vlad_tepesch

why is cv::invert so incredibly slow?

2k
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2
answers
2
votes
2012-10-11 17:17:20 -0600 HugoRune

Hough transformation on given points

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