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5,271 questions
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opencv
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341
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no
answers
no
votes
2020-04-28 02:13:05 -0600
Hibiki
I cannot run opencv_traincascade.exe (Train dataset for temp stage can not be filled. Branch training terminated. Cascade classifier can't be trained. Check the used training parameters.)
opencv_traincascade
opencv
traincascade
248
views
1
answer
no
votes
2020-04-28 10:26:16 -0600
berak
Version OpenCV in combination Visual Studio .NET 3.5 and C# ? [closed]
opencv
dotnet3.5
visualstudio8
c#
613
views
no
answers
no
votes
2020-04-28 10:34:45 -0600
Josvds
Docker build fails on docker hub
docker
build
cmake
opencv
csharp
232
views
1
answer
no
votes
2020-04-29 09:00:39 -0600
supra56
how to measure an object?
python
opencv
29k
views
4
answers
9
votes
2020-04-29 09:38:59 -0600
wpalfi
how do you plot graphs in opencv projects?
opencv
graph
plot
data
386
views
no
answers
no
votes
2020-04-29 09:52:02 -0600
Emanuel Ferreira
Failing to use IE Backend (Compiling CV with IE)
opencv
python
InferenceEngine
1k
views
1
answer
-1
votes
2020-04-29 10:48:37 -0600
Nagarjuna
How to Convert Mat to ArrayList<Point> Java
opencv
1k
views
no
answers
no
votes
2020-04-29 16:36:52 -0600
costeecon
write a video file opencv pycharm mp4
opencv
python
2k
views
1
answer
-1
votes
2020-04-30 08:56:51 -0600
supra56
How to count if circle (cv2.circle) cross the line (cv2.line)
python
opencv
489
views
no
answers
no
votes
2020-05-01 03:41:04 -0600
JulesHummelink
Memory leak with openCV on android
android
opencv
java
memoryleak
231
views
no
answers
no
votes
2020-05-01 07:52:39 -0600
Abdou31
Get the distance between two faces detected
opencv
python
9k
views
1
answer
no
votes
2020-05-02 04:31:58 -0600
supra56
Drawing a rectangle around the red color region
python
opencv
colordetection
49k
views
3
answers
no
votes
2020-05-03 08:27:18 -0600
Mujeeb Ishaque
How does np.zeros() create a black background?
opencv
670
views
1
answer
no
votes
2020-05-04 01:02:41 -0600
nano-man
Compile Python3 lib of OpenCV3.4.10
opencv
python
126
views
no
answers
no
votes
2020-05-05 02:54:54 -0600
Dogu
How can I detect things with lines
cv2
opencv
python
numpy
727
views
no
answers
no
votes
2020-05-05 10:28:54 -0600
berak
FLANN with Hierarchical Clustering Index
FlannBasedMatcher
opencv
python
ORB
16k
views
no
answers
no
votes
2020-05-05 13:23:42 -0600
supra56
How to capture Multi camera with Opencv Multi threading (python) [closed]
opencv
multiplecamera
Multithreading
2k
views
2
answers
no
votes
2020-05-06 01:07:47 -0600
berak
Create mock OpenCV camera on Python
mock
opencv
camera
1k
views
no
answers
no
votes
2020-05-07 05:13:39 -0600
snehal
Remove vignetting effect [closed]
opencv
c++
448
views
no
answers
no
votes
2020-05-11 07:19:20 -0600
TCrevin
SIFT in OpenCV 4.x < [closed]
SIFT
feature-detection
opencv
python
281
views
1
answer
no
votes
2020-05-13 01:52:06 -0600
berak
How do i use only certain modules in OpenCV?
embedded
c++
opencv
modules
memory
18k
views
no
answers
no
votes
2020-05-13 13:43:14 -0600
aviramPi
openCV connect and process an ip camera stream (rtsp protocol)
opencv
python
rtsp
camera
ipcamera
192
views
no
answers
no
votes
2020-05-14 11:16:13 -0600
utter_noob
Any previous Opencv DNN support lower cc(3)
c++dnnopencv
opencv
c++
307
views
no
answers
no
votes
2020-05-15 02:39:16 -0600
Nbb
cannot install this code
opencv
492
views
no
answers
no
votes
2020-05-16 07:26:42 -0600
Vasu
How do we matching the features on image with live camera and draw the rectangle?
opencv
1k
views
1
answer
no
votes
2020-05-17 02:41:26 -0600
berak
Best Face Detection Trained Data for Haar Cascade Classifier?
Haar
opencv
python
Facedetection
objectdetection
1k
views
no
answers
no
votes
2020-05-17 08:23:31 -0600
hernancrespo
Problem with writing video [closed]
opencv
Video
cv2.VideoWriter
2k
views
1
answer
no
votes
2020-05-17 10:07:36 -0600
Cătălina Sîrbu
What is the difference between cropping an image and applying a ROI (region of interest) on the image
opencv
regionofinterest
python
crop
513
views
no
answers
no
votes
2020-05-17 15:01:01 -0600
YigalB
Use openCV for object+distance detection
opencv
arduino
distance
720
views
1
answer
no
votes
2020-05-19 04:12:49 -0600
berak
How do I install OpenCV through RStudio?
installation
Rstudio
opencv
wholebrain
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