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29,830 questions
Tagged
162
views
no
answers
no
votes
2019-12-18 11:04:37 -0600
heisenburg007
Get video input when device not on uvc input
python
c++
opencv
791
views
3
answers
no
votes
2019-12-30 03:36:01 -0600
Gandalf2019
cv::cuda::convolve artifacts
CUDA
Convolve
filter
artifacts
LinearFilter
900
views
1
answer
no
votes
2019-12-19 08:38:28 -0600
Ben470
Convert pixel to points in world coordinates
position
pixeltranslation
function
986
views
no
answers
no
votes
2019-12-19 03:15:42 -0600
ibrahim_5403
How can I convert keras model (.h5) into tensorflow (.pb) model to use in opencv DNN module?
cv2.dnn
tensorflow
keras
350
views
no
answers
no
votes
2019-12-19 03:35:33 -0600
ramthota
enable VFPV4 for ARM v8
c++opencv
144
views
no
answers
no
votes
2019-12-19 09:03:01 -0600
supra56
yolov3 optimized by model optimizer fail to do inference
dnn
tiny
yolo
model
optimizer
271
views
no
answers
no
votes
2019-12-19 09:07:29 -0600
Dimitar Veljanovski
How do I make a 3D map of ORB keypoints using 1 camera
SLAM
3dmodel
mapping
716
views
no
answers
no
votes
2019-12-20 07:18:13 -0600
dslove
Not able to use openCL on Mac
opencl
gpu
mac
236
views
no
answers
no
votes
2019-12-19 18:25:25 -0600
supra56
How to draw contours on squares drawn with pencil (Python)
opencv
python
contours
455
views
no
answers
no
votes
2019-12-20 03:29:23 -0600
infant_batman
Errors while building customised ffmpeg4.1 with libopencv_highgui-dev
ffmpeg
makefile
235
views
no
answers
no
votes
2019-12-20 10:40:29 -0600
exbigboss
[C++] Using DNN with Tiny Yolo v2, not getting 13x13 (just 125 x 1)
dnn
yolov2
97
views
no
answers
no
votes
2019-12-20 12:07:29 -0600
danfur
Changes made to getRotationMatrix2D() in version 4.1.2?
getRotationMatrix2D
130
views
no
answers
no
votes
2019-12-20 14:42:35 -0600
supra56
projectPoints shows wierd results
c++#opencv
307
views
no
answers
no
votes
2019-12-20 19:39:56 -0600
abraham1798
Change webcam to an usb cam in Rviz [closed]
ros
Rviz
usb_webcam
1k
views
no
answers
no
votes
2019-12-21 22:34:30 -0600
HelloWorld
SVM predict error error: (-215:Assertion failed) samples.cols == var_count && samples.type() == CV_32F in function 'predict' [closed]
cv2.ml_SVM
95
views
no
answers
no
votes
2019-12-21 23:55:00 -0600
tech5
Continue path of vertical lines
opencvpython
101
views
no
answers
no
votes
2019-12-22 21:12:00 -0600
lunasdejavu
warpPerspective errors if do it separately by channels
cvWarpPerspective
357
views
no
answers
no
votes
2019-12-26 09:07:59 -0600
supra56
Detecting Certain Classes with OpenCV DNN
c++#dnn#opencv
5k
views
1
answer
no
votes
2020-01-06 06:52:43 -0600
cudawarped
openCV 4.2 with CUDA 10.2
CUDA10.2
opencv4.2
533
views
no
answers
no
votes
2019-12-23 21:06:24 -0600
clay
waitkey(1) freezes display output when previewing in multiple threading
waitkey
freezes
display
2k
views
no
answers
no
votes
2019-12-24 01:38:33 -0600
LangdalePikes
How to improve identification confidence using LBPHFaceRecognizer
LBPHFaceRecognizer
identification
confidence-score
134
views
no
answers
no
votes
2019-12-24 02:43:28 -0600
azkaaprianta
MACE face authentication always return not same person
FaceRecognizer
MACE
675
views
no
answers
no
votes
2019-12-24 07:27:20 -0600
Dimitar TB
How do I create a 3D map of keypoints from a single camera?
SLAM
3dreconstruction
c++#opencv
496
views
no
answers
no
votes
2019-12-24 14:18:38 -0600
karDilip
OpenCV Java: Iterate through all points in Line as obtained from FitLine & find distance of each point to Contour edge using pointPolygonTest - Little Help Please!
opencv
java
8k
views
1
answer
no
votes
2019-12-26 08:21:42 -0600
supra56
Unable to find and draw biggest contour
copencv
FindContour
max
1k
views
no
answers
no
votes
2019-12-25 10:51:23 -0600
muaz65
Issue with cv2.PerspectiveTransform and Direct Point Specific Homography Translation [Python]
perspectiveTransform
HomographyMatrix
translationMatrix
cv#opencv#python
190
views
no
answers
no
votes
2019-12-25 10:08:23 -0600
PeymanTGH
Calibrate camera using cube [closed]
calibrateCamera
1k
views
1
answer
no
votes
2019-12-27 07:00:36 -0600
cudawarped
Building OpenCV 4 requires CC 5.3 or higher - RTX 2080TI
opencv4
opencv4.2
CUDA
dnn
DNN_BACKEND_CUDA
277
views
1
answer
no
votes
2019-12-27 03:17:36 -0600
cudawarped
cuda fastfeaturedetector
CUDA
Jetsonnano
copencvpython
FastFeatureDetector
856
views
1
answer
no
votes
2019-12-26 09:29:07 -0600
supra56
Error of opening camera with OpenCV
cv2.videocapture
camera
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