Questions - OpenCV Q&A Forum

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

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

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

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

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2012-11-28 09:57:24 -0600 Abid Rahman K

Error with Contour functions in OpenCV 2.4.3

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2014-10-22 21:26:41 -0600 CVNovice

How would I sort contours from cvFindContours using RETR_TREE into a tree/pyrimid based on hierarchy?

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2015-01-19 12:04:38 -0600 Pedro Batista

Objects Detection in python opencv

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2015-12-09 08:15:46 -0600 MartinJensen

How do you detect things moving out of picture in a video? [closed]

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2016-01-05 10:31:44 -0600 thdrksdfthmn

find contours in an image [closed]

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2016-01-14 03:40:43 -0600 kbarni

Why pixels can have float values?

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2016-01-24 02:03:53 -0600 berak

Problem in Drawing Contour

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

contour fitting and segmentation in python

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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.

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

detecting a photograph [closed]

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

Extracting Contours from Image - Python

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

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

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

union of contours opencv

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

Android + OpenCV - Finding extreme points in contours

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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?

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

improve my findContours for a square detection?

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

How to find the second Largest Contour in an image

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

Bounds extraction [closed]

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

Finding relatively large objects in a cluttered background - Help needed

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

How to remove unwanted areas/pixels from image ?

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

Detect Contours

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

Find the center of mass of cells and crop the image

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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++

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

find contours in an image?

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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 ?

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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.

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

Contour + hough Transformation

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

39 questions

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

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

Error with Contour functions in OpenCV 2.4.3

How would I sort contours from cvFindContours using RETR_TREE into a tree/pyrimid based on hierarchy?

Objects Detection in python opencv

How do you detect things moving out of picture in a video? [closed]

find contours in an image [closed]

Why pixels can have float values?

Problem in Drawing Contour

contour fitting and segmentation in python

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

detecting a photograph [closed]

Extracting Contours from Image - Python

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

union of contours opencv

Android + OpenCV - Finding extreme points in contours

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

improve my findContours for a square detection?

How to find the second Largest Contour in an image

Bounds extraction [closed]

Finding relatively large objects in a cluttered background - Help needed

How to remove unwanted areas/pixels from image ?

Detect Contours

Find the center of mass of cells and crop the image

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

find contours in an image?

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

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

Contour + hough Transformation

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

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