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29,830 questions
Tagged
98
views
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answers
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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
313
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
365
views
no
answers
no
votes
2019-12-26 09:07:59 -0600
supra56
Detecting Certain Classes with OpenCV DNN
c++#dnn#opencv
556
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
142
views
no
answers
no
votes
2019-12-24 02:43:28 -0600
azkaaprianta
MACE face authentication always return not same person
FaceRecognizer
MACE
689
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
504
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
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
192
views
no
answers
no
votes
2019-12-25 10:08:23 -0600
PeymanTGH
Calibrate camera using cube [closed]
calibrateCamera
243
views
no
answers
no
votes
2019-12-26 12:00:26 -0600
BadMachine
Triangulate points using Hartley & Zisserman (iterative) method [closed]
triangulation
270
views
no
answers
no
votes
2019-12-26 13:12:32 -0600
Vkkindia
GCR and UCR - python Possible
gcr
ucr
python
704
views
no
answers
1
vote
2019-12-27 01:57:05 -0600
evgevd
DNN forwards only first image
c++dnnopencv
dnn
dnn.forward
2k
views
no
answers
no
votes
2019-12-27 05:34:46 -0600
arnthorg
Syncing multiple cameras with the multiprocessing library
opencv
python
RaspberryPi
2k
views
no
answers
no
votes
2019-12-27 08:28:20 -0600
Marius Gaus
No module named 'cv2' but opencv is installed
python
cv2
opencv-python
112
views
no
answers
no
votes
2019-12-27 09:08:04 -0600
Galactic3D
Real-time location mapping using 3d model
real-time
mapping
3k
views
no
answers
no
votes
2019-12-28 07:54:19 -0600
berak
Assertion failed (!fixedType() || ((Mat*)obj)->type() == mtype) in cv::_OutputArray::create while Performing DFT
assertion
c++
opencv
dft
157
views
no
answers
no
votes
2019-12-28 19:25:49 -0600
papabiceps
Learning the background model using images
opencv
BackgorundSubtractor
461
views
no
answers
no
votes
2019-12-28 19:52:18 -0600
2Smoker
Does CV_DISABLE_OPTIMIZATION disable all optimizations?
cmake
optimization
129
views
no
answers
no
votes
2019-12-29 03:17:11 -0600
dineshlama
Check larges polygon in contour [closed]
contour
2k
views
no
answers
no
votes
2019-12-29 10:03:51 -0600
Gourav
Difference in output of minAreaRect in python and c++
minAreaRect
323
views
no
answers
no
votes
2019-12-29 10:39:00 -0600
AstroBen
CUDA: Has anyone tried passing GpuMats to other Python CUDA modules?
CUDA
python
opencv
cupy
347
views
no
answers
no
votes
2019-12-29 23:20:22 -0600
jaylo
OpenCV Blender causes CL_BUILD_PROGRAM_FAILURE
stitching
opencl
c++
163
views
no
answers
no
votes
2019-12-30 00:02:47 -0600
dineshlama
How to find hierarchy of multiple contours
contour
558
views
no
answers
no
votes
2019-12-30 04:41:01 -0600
GW
How to get daytime of each frame when use cv2.VideoCapture("ip camera") python?
camera
opencv
python
daytime
cv2VideoCapture
time
1k
views
no
answers
no
votes
2019-12-30 03:48:27 -0600
naveen_s_n
Disabling NEON & VFPv3 in cmake
VFP
arm-neon
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