Questions - OpenCV Q&A Forum

326

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no

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no

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2020-11-08 05:13:03 -0600 sturkmen

measure a curved petiole

13k

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2

answers

1

vote

2020-11-08 03:59:41 -0600 Freeman

detectAndCompute in OpenCV3 "not implemented"?

6k

views

1

answer

no

votes

2020-11-06 12:53:10 -0600 stanleyshly

Point Cloud to Depth Map

351

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1

answer

no

votes

2020-11-06 10:58:37 -0600 berak

cuda_*** objects crash in 4.5 (Python)

264

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no

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no

votes

2020-11-06 03:57:20 -0600 RegisAG

How to change color of all non transparent pixels to black?

android

938

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1

answer

no

votes

2020-11-06 02:17:36 -0600 berak

C++/WinRT, WinUI2/3 and OpenCV

1k

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no

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no

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2020-11-06 02:07:00 -0600 gino0717

can I use yolo v4 model in dnn in opencl?

dnn
opencl

333

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no

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no

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2020-11-06 00:14:51 -0600 zxw2600

fail to calibrate fisheye camera

calibrateCamera

1k

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1

answer

no

votes

2020-11-05 18:57:33 -0600 IamSierraCharlie

What backend API to use with DAHENG MER-132 USB3 Vision camera

753

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no

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no

votes

2020-11-05 12:40:07 -0600 vamshee

detect multiple qr code in the captured image using android SDK?

AndroidOpenCV

267

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no

answers

-1

votes

2020-11-05 04:50:10 -0600 berak

Does OpenCV support react js?

reactjs

2k

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no

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no

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2020-11-04 21:12:09 -0600 Crazy Sage

How to calibrate camera with opencv circles grid pattern?

2k

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1

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no

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2020-11-04 21:08:10 -0600 Crazy Sage

OpenCV out of memory problem on imread\imdecode

c++
imread

528

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no

answers

no

votes

2020-11-04 11:26:41 -0600 vdhers

C++ allocate and copy matrix take too much time

141

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1

answer

no

votes

2020-11-04 10:51:54 -0600 berak

package bgsegm appears to be missing from OpenCV 4.5 Java

BackgroundSubtractor

603

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1

answer

no

votes

2020-11-04 08:59:59 -0600 berak

Train Cascade

1k

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no

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no

votes

2020-11-04 03:38:18 -0600 wilber1222

How to get raw data by OpenCV?

raw
image

99

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no

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no

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2020-11-03 12:04:17 -0600 plswork

Capture frames of an active site [closed]

facialrecognition

361

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no

answers

no

votes

2020-11-03 11:45:26 -0600 antithing

Opencv aruco::detectMarkers function crashes on AMD processors, runs fine on Intel.

722

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1

answer

no

votes

2020-11-03 10:14:43 -0600 cudawarped

Read video from usb/onboard camera using cv::cudacodec::VideoReader

138

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no

answers

no

votes

2020-11-03 09:30:49 -0600 Hyderman

Display hierarchy lvl on contour.

hierarchy

3k

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2

answers

no

votes

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

Color threshholding only outputs edge for green color.

python

673

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no

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no

votes

2020-11-03 06:24:52 -0600 Sanju

How to enable Windows media foundation hardware acceleration on opencv.

1k

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1

answer

no

votes

2020-11-03 06:03:35 -0600 Maaike

Make GpuMat continuous / copy to continuous memory.

474

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1

answer

no

votes

2020-11-03 03:21:25 -0600 mvuori

I want get image with my device

c++

1k

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no

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no

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2020-11-02 22:20:40 -0600 supra56

Why pytesseract.image_to_data fails to recognize text?

1k

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no

answers

no

votes

2020-11-02 16:55:50 -0600 moisu

Template Matching with Multiple Objects C++ Code

templateMatch

2k

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1

answer

no

votes

2020-11-02 15:40:17 -0600 iacisme

Issues encoding image captured using cv2.VideoCapture(). Goal is to display image in an iPywidget

556

views

2

answers

3

votes

2020-11-02 11:17:38 -0600 sturkmen

Number extraction on metal surface1

844

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no

answers

1

vote

2020-11-02 09:41:08 -0600 amateurpirate

No effect from setting CAP_PROP_GAIN

camera
gain

29,830 questions

measure a curved petiole

detectAndCompute in OpenCV3 "not implemented"?

Point Cloud to Depth Map

cuda_*** objects crash in 4.5 (Python)

How to change color of all non transparent pixels to black?

C++/WinRT, WinUI2/3 and OpenCV

can I use yolo v4 model in dnn in opencl?

fail to calibrate fisheye camera

What backend API to use with DAHENG MER-132 USB3 Vision camera

detect multiple qr code in the captured image using android SDK?

Does OpenCV support react js?

How to calibrate camera with opencv circles grid pattern?

OpenCV out of memory problem on imread\imdecode

C++ allocate and copy matrix take too much time

package bgsegm appears to be missing from OpenCV 4.5 Java

Train Cascade

How to get raw data by OpenCV?

Capture frames of an active site [closed]

Opencv aruco::detectMarkers function crashes on AMD processors, runs fine on Intel.

Read video from usb/onboard camera using cv::cudacodec::VideoReader

Display hierarchy lvl on contour.

Color threshholding only outputs edge for green color.

How to enable Windows media foundation hardware acceleration on opencv.

Make GpuMat continuous / copy to continuous memory.

I want get image with my device

Why pytesseract.image_to_data fails to recognize text?

Template Matching with Multiple Objects C++ Code

Issues encoding image captured using cv2.VideoCapture(). Goal is to display image in an iPywidget

Number extraction on metal surface1

No effect from setting CAP_PROP_GAIN

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