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316 questions

18k
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3
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2019-12-15 00:56:11 -0600 essamzaky

How to eliminate small contours in a binary image?

2k
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1
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2013-04-18 12:23:13 -0600 Guanta

Detecting small colored spheres

751
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no
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2018-04-23 16:28:52 -0600 ritesh1996

Is there any python code for Camera Tampering detection using opencv?

495
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no
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2016-06-26 08:53:14 -0600 Gesture Rec

How to count Convexity Defects ?

161
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1
answer
no
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2019-12-15 00:52:15 -0600 essamzaky

Missing region when used findcontours

1k
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no
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2018-12-07 10:56:14 -0600 sreevathsabr

Facing Problem in drawing counters for resized Image

1k
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1
answer
no
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2015-09-06 11:02:29 -0600 LBerger

FindContours hirerarcy issue

286
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1
answer
no
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2014-02-20 10:03:40 -0600 shiv.butekar

Quesion on OpenCV used in Eclipse Linux

749
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2
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no
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2017-04-26 07:00:48 -0600 Svad

opencv-3.2.0(x64): drawContours does not work with Qt5

4k
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no
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2013-10-08 00:44:40 -0600 Shaban flag of Indonesia

How to create an array of Mat by the number of frame?

525
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1
answer
no
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2013-12-04 18:19:54 -0600 Shaban flag of Indonesia

How to take "cv::Mat frame" inside contours?

3k
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2013-06-24 01:54:39 -0600 Shaban flag of Indonesia

How to detect the direction of moving objects?

4k
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1
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2013-12-14 06:49:09 -0600 natadmin

[RESOLVED] HOGDescriptor Error: Assertion Failed!

1k
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1
answer
no
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2016-02-03 11:26:54 -0600 sturkmen flag of Turkey

Why a contour can't always be drawn filled?

3k
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no
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no
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2014-10-28 20:38:02 -0600 tim obrien

error:Only 8-bit 1-channel and 3-channel input/output images are

12k
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2
answers
no
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2013-03-14 11:22:10 -0600 Guanta

Result issues with findContours

144
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no
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no
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2018-03-23 01:57:46 -0600 santhosh21

How to add the points[4] to the contours by using opencv framework

2k
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1
answer
no
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2018-07-18 07:31:45 -0600 kbarni flag of France

drawContours with Gradient color

536
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no
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2018-02-20 09:19:03 -0600 Marko5280

How do I find a vertical line in a image?

3k
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1
answer
no
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2013-08-05 13:16:04 -0600 berak

call of overloaded ‘Point_(cv::Point2f&)’ is ambiguous

302
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no
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no
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2018-04-29 05:05:31 -0600 bennog

extract flower buds in x-ray image

132
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no
answers
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2018-06-08 09:20:05 -0600 garbalawal

FindContour does not get all contour

17k
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no
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2017-09-22 11:53:05 -0600 Intoxica

Undefined Reference to cv::

575
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no
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no
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2020-02-27 21:20:09 -0600 supra56 flag of Canada

no matching function for call to 'drawContours' [closed]

554
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no
answers
no
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2018-12-17 09:09:31 -0600 ub0baa

speeding things up [closed]

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