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29,830 questions
Tagged
2k
views
1
answer
no
votes
2019-10-29 09:36:01 -0600
Thierry
Cancel VideoCapture::open RTSP from an other thread [closed]
videocapture
Open
cancel
888
views
2
answers
no
votes
2019-10-29 11:15:24 -0600
supra56
My simple code doesnt work, it says CV_WINDOWS_NORMAL is an undeclared identifier, what should I do, is there some other lib that I need to include?
undeclared
identifier
746
views
no
answers
no
votes
2019-10-29 10:33:32 -0600
Mayank1548
Error in importing cv2 - Dll load failed :the specified procedure could not be found
opencv
python
windows
xp
3k
views
1
answer
no
votes
2019-10-29 10:21:44 -0600
cv_usr_mji
Accuracy of cv2.aruco.estimatePoseSingleMarkers
aruco
apriltag
pose_estimation
calibration
1k
views
no
answers
no
votes
2019-10-29 13:04:50 -0600
light0090
Yolov3 and darknet problem
python
Yolov3
yolo
darknet
tiny-dnn
drawcontour
422
views
no
answers
no
votes
2019-10-29 14:04:06 -0600
CalTran
Jetson TX2, Parrot Olympe, and OpenCV
opencv-python
Jetson
Jetson-TX2
Olympe
3k
views
1
answer
no
votes
2019-10-30 06:10:16 -0600
Kitnos
Bounding boxes around certain colors
opencv
python
Bounding_Box
185
views
no
answers
no
votes
2019-10-30 05:27:12 -0600
berak
python-opencv on riscv
python_opencv_riscv
56
views
no
answers
no
votes
2019-10-30 08:03:25 -0600
arharvey
Why isn't saturate_cast supported for 32S?
arithmetic
202
views
no
answers
no
votes
2019-10-30 10:47:06 -0600
Bilityuk
Diferent objects detection in one picture
detect
multiple
object
3k
views
1
answer
no
votes
2019-11-04 09:28:05 -0600
TakiEddine
How to copy frames read by videoCapture
videocapture
c++
image
DisplayImage
229
views
no
answers
no
votes
2019-10-30 17:45:11 -0600
SRG-FTL
How to choose the estimation algorithm for the findHomography() function?
RANSAC
findHomography
features2d
372
views
no
answers
no
votes
2019-10-30 19:46:48 -0600
TensorIA
Retrained tensorflow model in OpenCV
readNetFromTensor
object_detection
retrained
378
views
no
answers
no
votes
2019-10-31 03:43:41 -0600
karthikkarra
Unable to execute the sample program
undefined_references
opencv_version
361
views
no
answers
no
votes
2019-10-31 06:07:52 -0600
Kitnos
SIFT between 1 image and dataset (2 images)
SIFT
c++
xfeatures2d
findHomography
3k
views
3
answers
no
votes
2019-11-03 15:19:47 -0600
Billie
Extract Handwriting and Print from Background
2d-image
image-processing
OCR
891
views
no
answers
no
votes
2019-11-02 10:17:02 -0600
berak
How to create a new thread for object detection task？
dnn
Multithreading
android
1k
views
no
answers
no
votes
2019-11-01 01:34:54 -0600
berak
The code examples are not working for opencv.js
OpenCV.js
287
views
1
answer
no
votes
2019-11-01 06:52:51 -0600
berak
cv::Algorithm read/write in API 3?
algorithm
CvRTrees
FileStorage
231
views
no
answers
no
votes
2019-11-01 08:00:27 -0600
LBerger
RFC: retire answers.opencv.org and switch to https://stackoverflow.com/questions/tagged/opencv [closed]
forum
1k
views
1
answer
no
votes
2019-11-15 01:54:39 -0600
Yashas
Error compiling openCV 4.1.2 with CUDA 9.0 in Ubuntu 16.04
CUDA9.0
ubuntu
334
views
1
answer
no
votes
2019-11-02 01:44:14 -0600
mvuori
real_time_pose_estimation VS-c++ compiling issues
pose_estimation
4.1.1
VS-c++
294
views
1
answer
no
votes
2019-11-02 03:07:45 -0600
berak
Appending local binary pattern of image (having 200 channels) taken over 3 channels at a time
Local
binary
local-binary-pattern
2k
views
2
answers
no
votes
2019-11-05 06:01:18 -0600
Nori5700
Cannot open include file: 'opencv2/core/utils/tls.hpp
c++#opencv
628
views
2
answers
no
votes
2019-12-29 13:55:02 -0600
bwvb
Just linking to opencv ruins thread-concurrency!?
c++
Multithreading
92
views
no
answers
no
votes
2019-11-02 06:37:30 -0600
RaceLuden
Detect color change and then click
opencv#python3.7
3k
views
1
answer
no
votes
2019-11-05 00:13:20 -0600
smartyon
Help For OpenCV Smoothing Contours
python
shape
Color
178
views
no
answers
no
votes
2019-11-02 17:23:27 -0600
FelipeVW
Drag Points in a Rotated Rectangle with highgui opencv
c++
highgui
60k
views
no
answers
no
votes
2019-11-04 21:36:22 -0600
supra56
Invalid number of channels in input image: 'VScn::contains(scn)' 'scn' is 1 [closed]
Channels
learn
63
views
no
answers
no
votes
2019-11-03 08:47:36 -0600
integr1
How to run a program on Python 3 opencv 3 to Python 3 opencv 4? [closed]
opencv4.1
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