Questions - OpenCV Q&A Forum

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2013-06-18 10:15:54 -0600 berak

The contours in drawcontours is closed or not?

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2013-11-19 01:45:33 -0600 Michael Burdinov

FindContours Precsision

findContours

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2014-04-04 10:58:56 -0600 wuling

How to fill the shape which i use minAreaRect or minEnclosingCircle?

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2014-04-05 04:03:21 -0600 Francesco Sgaramella

in Python OpenCV use of hierarchy for findContours

findContours

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2014-06-04 05:31:35 -0600 Nbel

Contours differences between C++ and Python [closed]

findContours

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2015-12-30 10:44:59 -0600 HappyForce

Problem with findContours and drawContours

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2015-01-31 09:35:57 -0600 Dionysos

findcontours finds too many contours. [closed]

findContours

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2015-05-13 10:16:07 -0600 tingnewbie

how does "findcontours" store contours?

findContours

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2015-06-05 15:35:07 -0600 Guyygarty

faster blur [closed]

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2015-11-07 15:49:03 -0600 sturkmen

How to use approxPolyDP to close contours

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2015-12-02 09:51:06 -0600 pklab

Colour + Contour Detection

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2015-12-01 02:50:28 -0600 pklab

I have problem with function Find Contours! what could be the problem?

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2016-01-30 05:11:24 -0600 Polyquin

Detect and fix incomplete rectangle

530

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2016-06-26 18:49:41 -0600 Solace

My contours smaller than a certain value are Not being removed from list of contours, despite of correct logic. Why?

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2016-11-11 21:25:57 -0600 Alfred

how to get a better binary image from low quality image?

3k

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2016-11-18 05:20:49 -0600 andreadc

cvFindContours is faster than cv::findcontours

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2017-01-17 09:03:43 -0600 mstankie

Closing contours with approxPolyDP or convexHull

491

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2017-02-02 06:34:45 -0600 sturkmen

Last convexity defect not working

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2017-09-07 12:42:02 -0600 sturkmen

How to delete those border component

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2017-11-26 05:40:14 -0600 Jeana

How does CV_CHAIN_APPROX_SIMPLE work?

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2018-04-24 01:15:56 -0600 berak

contour look strange

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2018-05-03 12:46:44 -0600 LBerger

How to detect led is blinking or not at multiple frequency?

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2018-11-07 09:34:34 -0600 berak

Unclear what is returned in cv2.findContours in Python 3.6

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2019-01-08 07:36:09 -0600 Vojta David

Error findContours with mode RETR_TREE on CV_32SC1 images

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2019-02-14 16:11:15 -0600 Koralgoll

Why findContour detects same edge twice?

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2019-12-12 13:53:53 -0600 exbigboss

cv::findContours doesn't append to the OutputArrayOfArrays [closed]

265

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2020-02-28 07:42:48 -0600 link1375

OpenCV detects most rectangular contours only if they are not aligned with the camera

findContours

321

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2020-03-27 11:12:58 -0600 link1375

findContours outputs different result, if the camera is parallel to the contour border

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2020-06-18 04:35:09 -0600 berak

Difference in drawn result between cv2.drawContours and drawing contours with a loop

788

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2020-08-13 09:45:23 -0600 sturkmen

147 questions

The contours in drawcontours is closed or not?

FindContours Precsision

How to fill the shape which i use minAreaRect or minEnclosingCircle?

in Python OpenCV use of hierarchy for findContours

Contours differences between C++ and Python [closed]

Problem with findContours and drawContours

findcontours finds too many contours. [closed]

how does "findcontours" store contours?

faster blur [closed]

How to use approxPolyDP to close contours

Colour + Contour Detection

I have problem with function Find Contours! what could be the problem?

Detect and fix incomplete rectangle

My contours smaller than a certain value are Not being removed from list of contours, despite of correct logic. Why?

how to get a better binary image from low quality image?

cvFindContours is faster than cv::findcontours

Closing contours with approxPolyDP or convexHull

Last convexity defect not working

How to delete those border component

How does CV_CHAIN_APPROX_SIMPLE work?

contour look strange

How to detect led is blinking or not at multiple frequency?

Unclear what is returned in cv2.findContours in Python 3.6

Error findContours with mode RETR_TREE on CV_32SC1 images

Why findContour detects same edge twice?

cv::findContours doesn't append to the OutputArrayOfArrays [closed]

OpenCV detects most rectangular contours only if they are not aligned with the camera

findContours outputs different result, if the camera is parallel to the contour border

Difference in drawn result between cv2.drawContours and drawing contours with a loop

cv.findContours is connecting unconnected regions

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