Questions - OpenCV Q&A Forum

95

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2019-10-26 00:30:13 -0600 nusrat jahan liza

why i am getting error with this line in python code? [closed]

163

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2019-10-27 06:16:38 -0600 perseveranter

Open cv Python line detection

167

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2019-11-19 17:07:19 -0600 isida

Calculate histogram for collored image [closed]

1k

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2019-11-24 03:31:46 -0600 berak

AttributeError: module 'cv2.cv2' has no attribute 'fillpoly' [closed]

python

234

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2019-12-26 13:12:32 -0600 Vkkindia

GCR and UCR - python Possible

467

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2020-01-04 17:41:31 -0600 abbeykevin

What is the best way to get the size and speed of a bubble in a video using python? [closed]

1k

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1

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-1

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2020-01-05 03:01:58 -0600 mvuori

how to save video from YOLO in opencv

1k

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2020-01-24 14:20:35 -0600 hernancrespo

cv2.cvtColor causes to stop Python

8k

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1

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no

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2020-02-02 05:18:25 -0600 supra56

object counting in python open cv

1k

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2

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

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

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2020-02-06 19:19:04 -0600 gersonmlb

Error cv :: VideoWriter :: open VIDEOIO (CV_IMAGES): raised OpenCV exception: when executing a .exe packaged from a .py

5k

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1

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2020-04-02 03:36:47 -0600 berak

How to solve error: (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::de

2k

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1

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-1

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2020-04-30 08:56:51 -0600 supra56

How to count if circle (cv2.circle) cross the line (cv2.line)

526

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2020-06-08 09:24:47 -0600 nvedia

Delete frames from video with a specific color or object in it

4k

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1

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no

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2020-06-13 02:13:58 -0600 berak

I Am Trying To Do Face-recognition With Python But I Am Getting This Error: cv2.error: OpenCV(4.2.0) /Users/travis/build/skvark/opencv-python/opencv/modules/imgproc/src/resize.cpp:4045: error: (-215:Assertion failed) !ssize.empty() in function 'resize'

72

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2020-06-14 22:22:32 -0600 Zenora

How do i add the webcam feed from my AI facial detection software onto the top panel in my frame?

355

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1

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-1

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2020-06-27 05:20:25 -0600 supra56

Python type casting [closed]

289

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-1

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2020-06-28 10:54:26 -0600 Dragonfly Robotics

OpenCV Training Custom Haar Cascade with Python 3

4k

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1

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no

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2020-07-28 06:51:26 -0600 berak

TypeError: Expected Ptr<cv::UMat> for argument 'src'

4k

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2020-08-12 10:35:37 -0600 Coder123456789

why do i get this error

python

502

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2020-09-27 09:11:36 -0600 Chris

How to color the pixels in an image depending on whether they are inside/outside a zone/circle?

142

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-1

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2020-10-06 08:51:57 -0600 Sue

How can I get just one rgb value in a video from ROI's center

python

1k

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2020-10-23 02:07:56 -0600 Tehseen

How to find the location of a point in an image in millimeters using camera matrix?

1k

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2020-10-25 03:48:29 -0600 ItsYasirrr

How to remove black stamp from an image

595

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2020-12-01 21:13:26 -0600 lilyily

Converting image to grayscale

635

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-2

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2013-10-01 08:22:52 -0600 ingy

Opencv connected to mongodb through python

503

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no

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-2

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2017-01-09 08:36:42 -0600 Tiaguituh05

Getting eyes images with dlib [closed]

python
Dlib

5k

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1

answer

-2

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2017-05-03 10:30:22 -0600 Edison

webcam capture but don't open windows with image [closed]

943

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1

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-2

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2017-06-30 01:42:01 -0600 berak

Is it possible to turn this c++ code into python code?

1k

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1

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-2

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2017-07-18 01:09:45 -0600 berak

hello anyone answer me how to pass command line arguments through python and how this error occurs usage: object_size.py [-h] -i IMAGE -w WIDTH object_size.py: error: argument -i/--image is required in this below code [closed]

2,171 questions

why i am getting error with this line in python code? [closed]

Open cv Python line detection

Calculate histogram for collored image [closed]

AttributeError: module 'cv2.cv2' has no attribute 'fillpoly' [closed]

GCR and UCR - python Possible

What is the best way to get the size and speed of a bubble in a video using python? [closed]

how to save video from YOLO in opencv

cv2.cvtColor causes to stop Python

object counting in python open cv

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

Error cv :: VideoWriter :: open VIDEOIO (CV_IMAGES): raised OpenCV exception: when executing a .exe packaged from a .py

How to solve error: (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::de

How to count if circle (cv2.circle) cross the line (cv2.line)

Delete frames from video with a specific color or object in it

I Am Trying To Do Face-recognition With Python But I Am Getting This Error: cv2.error: OpenCV(4.2.0) /Users/travis/build/skvark/opencv-python/opencv/modules/imgproc/src/resize.cpp:4045: error: (-215:Assertion failed) !ssize.empty() in function 'resize'

How do i add the webcam feed from my AI facial detection software onto the top panel in my frame?

Python type casting [closed]

OpenCV Training Custom Haar Cascade with Python 3

TypeError: Expected Ptr<cv::UMat> for argument 'src'

why do i get this error

How to color the pixels in an image depending on whether they are inside/outside a zone/circle?

How can I get just one rgb value in a video from ROI's center

How to find the location of a point in an image in millimeters using camera matrix?

How to remove black stamp from an image

Converting image to grayscale

Opencv connected to mongodb through python

Getting eyes images with dlib [closed]

webcam capture but don't open windows with image [closed]

Is it possible to turn this c++ code into python code?

hello anyone answer me how to pass command line arguments through python and how this error occurs usage: object_size.py [-h] -i IMAGE -w WIDTH object_size.py: error: argument -i/--image is required in this below code [closed]

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