Questions - OpenCV Q&A Forum

764

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2

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no

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2019-11-06 14:04:15 -0600 supra56

OpenCV does not read Logitech C920 .wmv files

406

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2

answers

no

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2020-01-29 06:16:00 -0600 cudawarped

Why SURF_CUDA does not bind to python?

10k

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2

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no

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2019-12-03 13:16:16 -0600 supra56

Detect ellipses, ovals in images with OpenCV python[SOLVED]

1k

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2

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no

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2019-12-13 14:45:56 -0600 supra56

Traceback (most recent call last): File "./Documents/S.py", line 36, in <module> roi_gray, NameError: name 'roi_gray' is not defined

2k

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2

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no

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2020-03-12 02:45:00 -0600 KTeddy

OpenCV build for Windows x64/Python3.7 from source. Where is the .pyd file?

15k

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2

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no

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2020-02-10 10:11:00 -0600 Agustin

How to crop rectangles from a image with opencv

1k

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2

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-1

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2020-02-01 21:10:44 -0600 supra56

How to get the number of centroids in a rectangle?[SOLVED]

3k

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2

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no

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2020-04-06 02:48:08 -0600 berak

'NoneType' object is not subscriptable error after read some fames

3k

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2

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no

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2020-04-11 09:16:33 -0600 supra56

How do i remove background noise in binary picture?

1k

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2

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no

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2020-05-23 09:33:20 -0600 berak

np.argmax returns 0 always

217

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2

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no

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2020-06-27 07:56:41 -0600 supra56

Opencv Doxygen for python

4k

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2

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3

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2020-07-07 03:40:47 -0600 berak

can't run HoughCircles on image

13k

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2

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1

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2020-07-12 03:33:50 -0600 supra56

cv2 imshow displaying black images sometimes

2k

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2

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no

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2020-09-16 04:01:10 -0600 cudawarped

How Can I use CUDA in Python for fastNlMeanDenosingColored?

2k

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2

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no

votes

2020-11-03 07:40:40 -0600 supra56

Color threshholding only outputs edge for green color.

python

3k

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3

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2

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2018-08-18 02:21:08 -0600 Vajrayudha Ristiawanto

How to train cascade classifier

10k

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3

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2

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2012-09-25 10:39:30 -0600 Kirill Kornyakov

Getting single frames from video with python

17k

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3

answers

3

votes

2013-04-04 16:40:18 -0600 bhollis

What format does cv2.solvePnP use for points in Python?

7k

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3

answers

1

vote

2014-04-23 04:34:08 -0600 claycau

How to detect camera rotation

python

3k

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3

answers

no

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2014-02-10 07:59:49 -0600 Boba-Fett

SimpleBlobDetection set blobColor Python

python

13k

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3

answers

5

votes

2014-03-04 03:20:53 -0600 jensenb

Undistortion at far edges of image

4k

views

3

answers

2

votes

2015-04-23 03:49:02 -0600 haxan7

Build OpenCV for Linux on ARM with FFmpeg

15k

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3

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1

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2017-12-19 22:03:29 -0600 stiv-yakovenko

How do I load an OpenCV generated yaml file in python?

yaml
python

8k

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3

answers

1

vote

2014-12-02 20:37:55 -0600 notmyusername

FLANN Index in Python - Training Fails with Segfault

8k

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3

answers

2

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2015-02-26 06:27:07 -0600 berak

Draw lines from centroid of contour at given angle till edge of contour

19k

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3

answers

1

vote

2017-10-23 12:26:04 -0600 berak

OpenCV 3.0.0, FaceRecognizer and Python Bindings

7k

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3

answers

no

votes

2015-06-18 12:22:50 -0600 jonlwowski012

Finding Leftmost and Rightmost Edge of Binary Image

10k

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3

answers

1

vote

2015-09-15 12:27:21 -0600 sturkmen

Detect spaces and fill with rectangle

32k

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3

answers

1

vote

2016-05-18 05:51:09 -0600 berak

module 'cv2' has no attribute 'createBackgroundSubtractorMOG'

21k

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3

answers

1

vote

2017-09-13 12:15:39 -0600 Ahmad Khalid

error: (-215) scn == 3 || scn == 4 in function cv::cvtColor

python

2,171 questions

OpenCV does not read Logitech C920 .wmv files

Why SURF_CUDA does not bind to python?

Detect ellipses, ovals in images with OpenCV python[SOLVED]

Traceback (most recent call last): File "./Documents/S.py", line 36, in <module> roi_gray, NameError: name 'roi_gray' is not defined

OpenCV build for Windows x64/Python3.7 from source. Where is the .pyd file?

How to crop rectangles from a image with opencv

How to get the number of centroids in a rectangle?[SOLVED]

'NoneType' object is not subscriptable error after read some fames

How do i remove background noise in binary picture?

np.argmax returns 0 always

Opencv Doxygen for python

can't run HoughCircles on image

cv2 imshow displaying black images sometimes

How Can I use CUDA in Python for fastNlMeanDenosingColored?

Color threshholding only outputs edge for green color.

How to train cascade classifier

Getting single frames from video with python

What format does cv2.solvePnP use for points in Python?

How to detect camera rotation

SimpleBlobDetection set blobColor Python

Undistortion at far edges of image

Build OpenCV for Linux on ARM with FFmpeg

How do I load an OpenCV generated yaml file in python?

FLANN Index in Python - Training Fails with Segfault

Draw lines from centroid of contour at given angle till edge of contour

OpenCV 3.0.0, FaceRecognizer and Python Bindings

Finding Leftmost and Rightmost Edge of Binary Image

Detect spaces and fill with rectangle

module 'cv2' has no attribute 'createBackgroundSubtractorMOG'

error: (-215) scn == 3 || scn == 4 in function cv::cvtColor

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