Questions - OpenCV Q&A Forum

945

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2020-10-22 11:43:22 -0600 sturkmen

Clicking contours with mouse but only 1 contour can be found? [closed]

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3

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1

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2020-08-13 22:51:08 -0600 jcrist

How to merge nearby rectangles

790

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2

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no

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2020-04-09 14:29:17 -0600 supra56

I can't draw the contour approximation, I use a green square to take the video but no contour on it.

3k

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no

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2020-03-31 12:18:09 -0600 laurent

Count cells on image using python and OpenCV [closed]

1k

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2020-03-23 17:51:04 -0600 ssokolow

Find only internal contours in JavaCV/OpenCV

236

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2019-12-19 18:25:25 -0600 supra56

How to draw contours on squares drawn with pencil (Python)

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2019-04-22 13:48:23 -0600 Sky31

Contour + hough Transformation

448

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no

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2018-12-15 23:46:25 -0600 Esh

Does openCV distance transform work for horizontal distance but not for vertical distance ?

182

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2018-12-05 06:25:12 -0600 berak

find contours in an image?

231

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2018-10-25 01:30:02 -0600 berak

what is the most effective way to measure middle width of trapezoid? C++

4k

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no

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2018-10-03 10:49:29 -0600 minok

Find the center of mass of cells and crop the image

1k

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1

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no

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2018-08-20 08:54:27 -0600 StevenPuttemans

Detect Contours

10k

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2

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2018-07-19 04:26:49 -0600 kbarni

How to remove unwanted areas/pixels from image ?

4k

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1

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2018-06-05 01:42:43 -0600 berak

TypeError:'NoneType' object cannot be interpreted as an integer

225

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2018-03-14 04:13:31 -0600 questerer

Finding relatively large objects in a cluttered background - Help needed

134

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no

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2018-01-23 12:55:29 -0600 Truefiber

Bounds extraction [closed]

3k

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2

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2017-12-20 11:25:12 -0600 Pedro Batista

Building contours from points

3k

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no

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-1

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2017-12-01 03:48:30 -0600 PoeteMaudit

findContours() does not find accurately contours (Python) [closed]

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2017-11-21 03:53:16 -0600 zms

How to find the second Largest Contour in an image

607

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2017-10-11 07:36:32 -0600 StevenPuttemans

How to draw filled contours on the top of another filled contour with different filled color/intensity?

6k

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1

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no

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2017-10-09 10:32:05 -0600 glukon

improve my findContours for a square detection?

2k

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1

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1

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2017-04-10 06:48:54 -0600 StevenPuttemans

Draw line along countours path (moving object)

2k

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1

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no

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2017-03-20 03:26:59 -0600 Balaji R

Android + OpenCV - Finding extreme points in contours

2k

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2

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no

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2017-02-23 10:08:30 -0600 pklab

union of contours opencv

5k

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1

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no

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2017-02-02 05:59:30 -0600 pklab

How to get to inside contour in c++,opencv

2k

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no

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2017-01-05 08:54:29 -0600 LDG

Extracting Contours from Image - Python

168

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2016-12-24 13:51:25 -0600 atv

detecting a photograph [closed]

4k

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no

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1

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2016-08-02 06:14:55 -0600 avpai

counting the number of child contours inside a contour in opencv

2k

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1

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no

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2016-07-03 08:02:13 -0600 Guanta

How can I detect center of road(as a line) if contours for road are drawn.

572

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no

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no

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2016-06-15 21:14:41 -0600 bradfield

39 questions

Clicking contours with mouse but only 1 contour can be found? [closed]

How to merge nearby rectangles

I can't draw the contour approximation, I use a green square to take the video but no contour on it.

Count cells on image using python and OpenCV [closed]

Find only internal contours in JavaCV/OpenCV

How to draw contours on squares drawn with pencil (Python)

Contour + hough Transformation

Does openCV distance transform work for horizontal distance but not for vertical distance ?

find contours in an image?

what is the most effective way to measure middle width of trapezoid? C++

Find the center of mass of cells and crop the image

Detect Contours

How to remove unwanted areas/pixels from image ?

TypeError:'NoneType' object cannot be interpreted as an integer

Finding relatively large objects in a cluttered background - Help needed

Bounds extraction [closed]

Building contours from points

findContours() does not find accurately contours (Python) [closed]

How to find the second Largest Contour in an image

How to draw filled contours on the top of another filled contour with different filled color/intensity?

improve my findContours for a square detection?

Draw line along countours path (moving object)

Android + OpenCV - Finding extreme points in contours

union of contours opencv

How to get to inside contour in c++,opencv

Extracting Contours from Image - Python

detecting a photograph [closed]

counting the number of child contours inside a contour in opencv

How can I detect center of road(as a line) if contours for road are drawn.

contour fitting and segmentation in python

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