Questions - OpenCV Q&A Forum

6k

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1

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no

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2014-05-13 09:38:15 -0600 wuling

Does findcontour detect the contour is not closed?

480

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1

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no

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2014-05-22 14:13:07 -0600 Ralph058

segmentation fault extracting contour element in replacement statement

2k

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2014-07-31 02:50:18 -0600 StevenPuttemans

How to extract pixels from a rotated box2d?

19k

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no

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2014-10-31 04:43:09 -0600 MichaelHecht

getting area points inside contour

398

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no

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2014-11-23 22:11:52 -0600 usman

Merge multiscale images to get a better contour

contour

593

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no

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2015-02-12 10:00:15 -0600 Knightarrow

Detecting Circles in opencv

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2015-03-30 08:00:04 -0600 Siegfried

Create a mat ROI for each contour blob?

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2015-04-02 15:27:58 -0600 215

combining small white blobs to one blob..

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2015-09-20 04:17:40 -0600 sturkmen

What is the best way to approximate a contour with a warped rectange?

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2015-04-15 13:22:36 -0600 FooBar

Track 3D Position of Blob/Fingertip

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1

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no

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2015-05-02 00:25:15 -0600 Eduardo

Problem when calculating the fitted ellipse

853

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no

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2015-07-15 05:40:48 -0600 bjorn89

Detect object in noisy image

1k

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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?

942

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1

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2015-08-23 17:02:27 -0600 JimmY_NotroN

find tilt and pan with opencv

241

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1

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2015-09-03 10:35:56 -0600 msucv

intelligent sort by location countors

378

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1

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2015-10-22 05:15:15 -0600 zms

Contour left of right?

1k

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1

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no

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2015-11-02 20:33:50 -0600 drVit

ellipse approximation of blob using contours moments : confusing orientation angle

2k

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1

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2

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2015-11-14 08:57:27 -0600 sturkmen

Detect different shaped contours?

1k

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no

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2016-01-06 21:09:25 -0600 sturkmen

bounding rect around detected eye region

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no

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2016-01-13 06:08:20 -0600 thdrksdfthmn

How to find the corners of a rectangular contour in pixel points?

298

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no

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2016-01-14 07:06:13 -0600 Tetragramm

How to track a letter T

contour

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no

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2016-02-03 11:26:54 -0600 sturkmen

Why a contour can't always be drawn filled?

5k

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no

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2016-02-06 08:57:06 -0600 Dr Dre

Problem in removing particular colors from the given image

2k

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no

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2016-02-06 08:24:27 -0600 Dr Dre

How to read center pixel color

1k

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1

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no

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2016-04-20 08:43:08 -0600 sturkmen

How to create an ROI (Region-Of-Interest or submat) from a contour?

411

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1

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no

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2016-06-27 14:51:16 -0600 Solace

Why is the drawContour() in OpenCV generating this strange Mask?

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?

4k

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2

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2016-04-23 03:15:31 -0600 Balaji R

Clicking on a point in an image finds the closest contour points

1k

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1

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no

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2016-09-12 22:01:45 -0600 Tetragramm

contour detection and distance measurement

709

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1

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no

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2016-11-10 08:41:46 -0600 sjanko

131 questions

Does findcontour detect the contour is not closed?

segmentation fault extracting contour element in replacement statement

How to extract pixels from a rotated box2d?

getting area points inside contour

Merge multiscale images to get a better contour

Detecting Circles in opencv

Create a mat ROI for each contour blob?

combining small white blobs to one blob..

What is the best way to approximate a contour with a warped rectange?

Track 3D Position of Blob/Fingertip

Problem when calculating the fitted ellipse

Detect object in noisy image

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

find tilt and pan with opencv

intelligent sort by location countors

Contour left of right?

ellipse approximation of blob using contours moments : confusing orientation angle

Detect different shaped contours?

bounding rect around detected eye region

How to find the corners of a rectangular contour in pixel points?

How to track a letter T

Why a contour can't always be drawn filled?

Problem in removing particular colors from the given image

How to read center pixel color

How to create an ROI (Region-Of-Interest or submat) from a contour?

Why is the drawContour() in OpenCV generating this strange Mask?

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

Clicking on a point in an image finds the closest contour points

contour detection and distance measurement

Calculate the distortion of two nearly identical Contours with “matchShapes()” and rotation of one contour

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