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29,830 questions
Tagged
5k
views
no
answers
no
votes
2019-09-03 05:03:55 -0600
lars27
ORB detector Segmentation Fault - Python [closed]
python
ORB
featuredetector
Keypoints
segmentation_fault
core_dumped
795
views
no
answers
no
votes
2019-09-03 10:53:24 -0600
holger
Contrast Detection - Picking the right Font color [closed]
contrast
detection
524
views
no
answers
no
votes
2019-09-03 20:23:21 -0600
Oliver Chen
Failed to get second frame from a CSI camera module
videocapture
356
views
no
answers
no
votes
2019-09-04 04:51:25 -0600
blockchainmen
Co-ordinate system followed in cv2.warpAffine()
image-warping
warpAffine
affine-transform
coordinates
704
views
no
answers
no
votes
2019-09-04 05:20:29 -0600
TheImageWhisperer
How do i find points of interest (keypoints) in a specific region of image
opencv
1k
views
no
answers
no
votes
2019-09-04 08:09:08 -0600
Sunilvb
Python error for 4.1.0 - cv.imshow(winname, mat) not implemented
opncv4raspberry-pi
93
views
no
answers
no
votes
2019-09-04 08:52:17 -0600
cjacquel
_ITERATOR_DEBUG_LEVEl for OpenCV 4.1.1
Debug
879
views
2
answers
no
votes
2019-09-07 11:51:44 -0600
tomihasa
Install OpenCV in Windows 10
qt
Windows10
cmake
install
396
views
no
answers
no
votes
2019-09-04 17:09:07 -0600
correia
triangulation points with projection matrix in stereorectify
stereo
stereorectify
3dreconstruction
1k
views
no
answers
no
votes
2019-09-05 05:02:06 -0600
vladvin
error: (-215:Assertion failed) api != 0 in function 'getBackendName'
videocapture
python
ffmpeg
gstreamer
v4l2
74
views
no
answers
no
votes
2019-09-05 10:00:43 -0600
wangkaijiang
compile opencv4.1.1 and qt with mingw3.2 meet 'chmod' is not internal command
opencvqt
3k
views
1
answer
no
votes
2019-09-23 08:30:37 -0600
dbots94
Get Rotation and Translation Matrix
3dreconstruction
depth-image
3d
2d
homography
1k
views
no
answers
no
votes
2019-09-05 12:49:07 -0600
zkumar
Error in reading onnx model (python)
dnn#opencv
161
views
no
answers
no
votes
2019-09-05 13:41:55 -0600
vito95
how does opencv handle rectangles feature of haar cascade classifier?
haarcascade.xml
haarcascade
cvHaarCascadeClass
haarcascades
153
views
no
answers
no
votes
2019-09-05 13:49:38 -0600
tantony
New to OpenCV and Python
opencv
python
2k
views
1
answer
no
votes
2019-09-06 16:28:34 -0600
Witek
OpenCVSharp - Object detection and tracking [closed]
objectdetection
objectrecognition
camera
392
views
no
answers
no
votes
2019-09-07 00:44:31 -0600
PR
error: undefined reference to 'cv::CascadeClassifier::detectMultiScale(cv::_InputArray const&, std::__ndk1::vector<cv::Rect_<int>, std::__ndk1::allocator<cv::Rect_<int> > >&, double, int, int, cv::Size_<int>, cv::Size_<int>)'
CascadeClassifier111
541
views
no
answers
no
votes
2019-09-07 01:09:50 -0600
MHZ
Pattern recognition
python
opencv
188
views
no
answers
no
votes
2019-09-07 07:43:46 -0600
[email protected]
Hardware for opencv
opencv
419
views
no
answers
no
votes
2019-09-08 00:18:08 -0600
vickygig
why fx focal length is changing when I calibrating the camera.
calibration
245
views
no
answers
no
votes
2019-09-08 19:48:06 -0600
JailsonPanizzon
How create a release for windows with OpenCV and PyQt5?
release
windows
Generate
exe
484
views
no
answers
no
votes
2019-09-08 21:23:55 -0600
karl liu
failed to compile OpenCV with CUDA at opencv_cudev module
build
165
views
no
answers
no
votes
2019-09-08 22:41:23 -0600
shuaizhang
DNN do not support tf.tile
dnn
tf.tile
274
views
no
answers
no
votes
2019-09-09 02:17:46 -0600
Rakesh_V
Getting error while compiling sampleDetectLandmarks.cpp [closed]
Facedetection
edges
309
views
1
answer
no
votes
2019-09-09 03:46:59 -0600
Witek
How do i extract background from videos and remove everything from the forground.
opencv
python
computervision
1k
views
1
answer
no
votes
2019-09-09 04:09:29 -0600
Kitnos
Get the contours of largest blob
opencv
c++
blob
635
views
no
answers
no
votes
2019-09-10 02:19:43 -0600
enxdtw
cvtColor hls to rgb lightening image
cvCvtColor
CV_BGR2HLS
223
views
no
answers
no
votes
2019-09-09 11:03:14 -0600
aimlyogi
Image quality for multi page Tiff
image
badquality
image-preprocessing
246
views
no
answers
no
votes
2019-09-09 11:19:11 -0600
nntsyeo
VIDEOIO ERROR: Pixel Format is unsupported
v4l2
CaptureVideo
745
views
no
answers
no
votes
2019-09-09 13:40:34 -0600
me.Stoffel
Get homography to warp image using camera pose obtained from 3D tracking
cvFindHomography
cvWarpPerspective
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