Questions - OpenCV Q&A Forum

802

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1

answer

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2015-08-05 09:40:28 -0600 chr0x

unable to determine angle because of points from line

1k

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1

answer

1

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2015-07-28 03:22:35 -0600 StevenPuttemans

How to do a mask or how to transform found contours to filled circles?

124

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no

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no

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2015-06-29 09:32:25 -0600 jeje20

Find the value of pixel around a circle

548

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no

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no

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2015-05-15 08:05:11 -0600 berak

Invalid arguments Candidates are: void minEnclosingCircle(const cv::_InputArray &, cv::Point_<float> &, float &)

628

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no

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no

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2015-04-28 09:43:20 -0600 Karthikeyan

Measuring Circle Centre point and Radius!! Finding a fixed threshold parameter

1k

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no

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no

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2015-04-20 04:59:09 -0600 StevenPuttemans

Is there other methods to detect circle apart of houghcircles

4k

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1

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1

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2015-04-16 16:57:16 -0600 theodore

Program that check for the roundness of ellipse?

1k

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1

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no

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2015-04-16 03:36:31 -0600 HasiKP

Contours radius unit

867

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1

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-1

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2014-09-22 07:14:48 -0600 Balaji R

Finding a point on a circle?

circle

7k

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2

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2

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2016-12-19 05:20:35 -0600 Soltius

Is it possible to draw half circle?

4k

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3

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2

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2017-10-10 12:36:46 -0600 mfisher

Open CV's HoughCircles() is ~1000 times faster than my version

4k

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1

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1

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2014-03-26 11:41:39 -0600 wuling

The maximum circle or rectangle inside the blob!

13k

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2

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2

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2014-03-30 08:54:28 -0600 robcio_5

How to draw a circle on an image using mouse click/events?

314

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1

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no

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2013-12-13 23:17:36 -0600 Daniil Osokin

i have problems with handling mouse event in opencv

5k

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2

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no

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2013-10-21 13:22:53 -0600 leRoss

filled circle detection

1k

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1

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no

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2013-09-11 04:17:54 -0600 Moster

Displaying radius of a circle

870

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1

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1

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2013-04-18 01:58:54 -0600 StevenPuttemans

function for detecting proximity of points

circle
Line

1k

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1

answer

1

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2013-04-08 16:28:31 -0600 Guanta

Drawing Circles around objects

1k

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3

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no

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2013-03-29 22:28:17 -0600 wuling

Circle- Detection with Visual Basic

circle

646

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1

answer

no

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2013-02-11 09:18:38 -0600 Muffo

Unexpected behavior of minEnclosingCircle

11k

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2

answers

1

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2012-12-17 01:34:08 -0600 Haris

Detect/Fitting Circles

5k

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1

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1

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2012-12-13 10:36:47 -0600 Ilya Lysenkov

Is there something wrong with circle grid with patternSize of 4 * 3 ?

16k

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3

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4

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2012-10-15 10:48:27 -0600 jlsb

findCirclesGrid

7k

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5

answers

4

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2018-07-26 02:01:52 -0600 jsxyhelu

I need a maxEnclosingCircle function

circle

54 questions

unable to determine angle because of points from line

How to do a mask or how to transform found contours to filled circles?

Find the value of pixel around a circle

Invalid arguments Candidates are: void minEnclosingCircle(const cv::_InputArray &, cv::Point_<float> &, float &)

Measuring Circle Centre point and Radius!! Finding a fixed threshold parameter

Is there other methods to detect circle apart of houghcircles

Program that check for the roundness of ellipse?

Contours radius unit

Finding a point on a circle?

Is it possible to draw half circle?

Open CV's HoughCircles() is ~1000 times faster than my version

The maximum circle or rectangle inside the blob!

How to draw a circle on an image using mouse click/events?

i have problems with handling mouse event in opencv

filled circle detection

Displaying radius of a circle

function for detecting proximity of points

Drawing Circles around objects

Circle- Detection with Visual Basic

Unexpected behavior of minEnclosingCircle

Detect/Fitting Circles

Is there something wrong with circle grid with patternSize of 4 * 3 ?

findCirclesGrid

I need a maxEnclosingCircle function

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