Questions - OpenCV Q&A Forum

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2016-10-24 23:12:15 -0600 Balaji R

Blurred mask on image

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no

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2016-11-17 01:56:20 -0600 KirtiSwagat

I have an error in #import numpy as np, why is that?

python
numpy

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2016-11-27 21:15:29 -0600 Dean Feng

no module named cv2 in Pycharm

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2017-08-09 09:23:37 -0600 Ziri

Detect fire/flame using HSV filter to contours.

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2017-03-28 15:26:37 -0600 Codacus

How to convert Keypoints to an argument for findhomography()?

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2017-02-20 03:01:13 -0600 pi-null-mezon

the dtype of read image

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2017-02-22 12:49:19 -0600 Codacus

How to grab pixel coordinates of detected face/eyes?

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2017-08-16 21:01:27 -0600 supra56

cv2.videoCapture(filename) assigning filename dynamically

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2018-07-01 23:08:01 -0600 Viraj Ghorpade

Python - Failure to import cv2: DLL load failed

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2017-06-03 07:46:43 -0600 Fynjy8

How to find distance between centers of two green boxes?

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2017-10-30 20:41:39 -0600 supra56

Why does faceCascade.detectMultiScale abort on call?

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2017-06-15 17:40:36 -0600 Judas

How to install OpenCV on Arch

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2017-07-10 14:57:22 -0600 KK

Import Error: cannot import name 'cv2'

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2017-07-23 23:20:20 -0600 yulz

Calculating image moments after connected component labeling function

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2017-08-17 04:43:30 -0600 supra56

Can I build OpenCV on my Desktop Computer from source, then transfer the build folder to a raspberry pi for use on a raspberry pi?

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2017-07-29 03:36:06 -0600 berak

I am learning Open CV using Python, and after doing some tutorials I found one exercise of hand gesture recognition but it gave me the next error :

python

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2017-08-15 03:40:02 -0600 supra56

How do I set exposure time of Logitech C922 webcam on OpenCV?

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2017-08-20 21:58:55 -0600 Prakash

Using trained file for predictions

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2017-08-29 12:09:22 -0600 matman

Sub-pixel estimation with match template

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2017-08-31 09:35:09 -0600 vps

Dilation not working

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2017-09-12 07:32:57 -0600 Arun1994

rotation-Bicubic resampling -using OpenCV python

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2017-09-15 02:14:59 -0600 Ziri

Extracting A4 sheet out of troubling backgrounds

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2017-09-29 07:30:27 -0600 supra56

OpenCV Error: Assertion failed (scn == 3 || scn == 4) in cvtColor,

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2017-10-22 21:08:41 -0600 supra56

I am not able to put text in my frames of the video it is not giving any error but still i can't see the text

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2017-10-31 17:35:24 -0600 MachineLearner

Python Opencv VideoCapture::read returns None only in a virtual environment

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2017-11-02 07:27:29 -0600 supra56

AttributeError: 'module' object has no attribute 'CAP_PROP_FRAME_HEIGHT'

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2017-11-09 21:06:18 -0600 supra56

Assertion Failed Opencv Python unlock

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2017-12-23 12:21:26 -0600 supra56

python-opencv h 265 codec

python

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2020-07-08 23:40:07 -0600 sturkmen

What does the history of this function “createBackgroundSubtractorMOG2” means?

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2018-08-16 15:31:33 -0600 Samsonite

2,171 questions

Blurred mask on image

I have an error in #import numpy as np, why is that?

no module named cv2 in Pycharm

Detect fire/flame using HSV filter to contours.

How to convert Keypoints to an argument for findhomography()?

the dtype of read image

How to grab pixel coordinates of detected face/eyes?

cv2.videoCapture(filename) assigning filename dynamically

Python - Failure to import cv2: DLL load failed

How to find distance between centers of two green boxes?

Why does faceCascade.detectMultiScale abort on call?

How to install OpenCV on Arch

Import Error: cannot import name 'cv2'

Calculating image moments after connected component labeling function

Can I build OpenCV on my Desktop Computer from source, then transfer the build folder to a raspberry pi for use on a raspberry pi?

I am learning Open CV using Python, and after doing some tutorials I found one exercise of hand gesture recognition but it gave me the next error :

How do I set exposure time of Logitech C922 webcam on OpenCV?

Using trained file for predictions

Sub-pixel estimation with match template

Dilation not working

rotation-Bicubic resampling -using OpenCV python

Extracting A4 sheet out of troubling backgrounds

OpenCV Error: Assertion failed (scn == 3 || scn == 4) in cvtColor,

I am not able to put text in my frames of the video it is not giving any error but still i can't see the text

Python Opencv VideoCapture::read returns None only in a virtual environment

AttributeError: 'module' object has no attribute 'CAP_PROP_FRAME_HEIGHT'

Assertion Failed Opencv Python unlock

python-opencv h 265 codec

What does the history of this function “createBackgroundSubtractorMOG2” means?

RPI 3B Protocol 'rtp' not on whitelist 'file,crypto'! OPENCV 3.3.0

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