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30,443 questions
Tagged
6
views
1
answer
no
votes
2020-12-02 06:01:03 -0500
berak
Did convexityDefects function behaviour changed between cv2 versions 4.2.0 and 4.3.0?
python
build_opencv_python
convexityDefects
contours
8
views
no
answers
no
votes
2020-12-02 04:28:12 -0500
berak
install opencv 3.4.0 on ubuntu 18.04
installation-fails
7
views
no
answers
no
votes
2020-12-02 03:30:41 -0500
maw
imshow no window on Mac Big Sur with Python
opencv
python
imshow
8
views
no
answers
no
votes
2020-12-02 03:02:42 -0500
AndrewM
How can I track the disappearance of a TV logo in a certain area in a frame (ROI)?
opencv
video_processing
9
views
no
answers
-1
votes
2020-12-01 21:13:26 -0500
lilyily
Converting image to grayscale
opencv
python
20
views
1
answer
1
vote
2020-12-01 11:25:19 -0500
crackwitz
stitch transform reuse
image-stitching
stitching
python3
34
views
2
answers
no
votes
2020-12-01 11:24:36 -0500
kbarni
Birdseye transform with getPerspectiveTransform
perspective
12
views
no
answers
no
votes
2020-12-01 10:18:57 -0500
sigmoid90
Pose estimation of image from a point cloud
3dreconstruction
matching
pose_estimation
image-registration
pointcloud
11
views
no
answers
no
votes
2020-12-01 07:39:09 -0500
Yaw Mensah
convert cv::Mat to a C Struct
OpenCVWrapper
12
views
no
answers
no
votes
2020-12-01 05:52:46 -0500
0noob0
how to use MSER in python 3?
MSER
copencvpython
49
views
no
answers
no
votes
2020-11-30 16:58:15 -0500
Phil2
guidance for mapping 2D image onto 3D geometry
2d-3d-mapping
texture
calibration
point_cloud
29
views
1
answer
no
votes
2020-11-30 11:22:22 -0500
crackwitz
PatMax in OpenCV
locate
patmax
industrial
Pattern_recognition
pattern-matching
aoi
84
views
1
answer
no
votes
2020-11-30 07:08:44 -0500
berak
How to eliminate Text underline?
grayText
darkerText
darkenText
ScannedDoc
33
views
1
answer
no
votes
2020-11-30 05:23:37 -0500
berak
Converting Mat of point cloud mesh to vector<cv::Point3d>
point_cloud
3Dmesh
projection
c++
33
views
no
answers
1
vote
2020-11-30 03:48:20 -0500
sigmoid90
Projecting point cloud to image plane in order to estimate camera pose
3dreconstruction
opencv
matching
pose_estimation
image-registration
point_cloud
37
views
1
answer
no
votes
2020-11-30 03:48:01 -0500
jaqueline.schweigert
OpenCV 4.5.0 Compile errors
installation
opencv4.5.0
java
27
views
1
answer
no
votes
2020-11-30 03:19:02 -0500
berak
How can I solve this problem? module 'cv2.cv2' has no attribute 'SURF'
attributeerror
28
views
1
answer
-1
votes
2020-11-30 02:13:48 -0500
berak
Expired US patent on SIFT
SIFT
patent
Restriction
26
views
no
answers
no
votes
2020-11-29 13:02:04 -0500
offsetnull1
No rule to make target '/usr/local/lib/libz.so', needed by 'lib/libopencv_core.so.4.5.1
opecv
build
build-error
cmake-error
libs
97
views
1
answer
1
vote
2020-11-29 06:19:20 -0500
jacubit
Opencv and OAK on Mac with new chip M1
oak
compatibility
hardware
CPU
mac
apple
146
views
2
answers
no
votes
2020-11-28 15:03:22 -0500
crackwitz
Face detection and time - video
Facedetection
video-playback
41
views
1
answer
no
votes
2020-11-28 02:21:26 -0500
berak
How to check if camera is enabled?
python
camera
35
views
no
answers
no
votes
2020-11-27 22:05:30 -0500
AndrewM
TV logo detection in a video file
c++
opencv
video-processing
24
views
1
answer
no
votes
2020-11-27 12:25:17 -0500
berak
Reduce frame resolution
resolution
java
android
59
views
1
answer
no
votes
2020-11-27 03:13:58 -0500
ieliz
Single Object Tracking in RealTime without cuda
object-tracking
realtime
19
views
no
answers
-1
votes
2020-11-27 01:22:28 -0500
Gur
How to detect lens flare /glare in images
lens
Flare
Glare
50
views
3
answers
no
votes
2020-11-26 13:38:03 -0500
AndyK
Use Opencl to access Umat data
opencl
UMat
23
views
1
answer
no
votes
2020-11-26 08:27:48 -0500
marius
OpenCV 4 and TermCriteria CV_TERMCRIT_ITER [closed]
TermCriteria
120
views
1
answer
no
votes
2020-11-26 08:06:40 -0500
berak
Error "Assertion failed (scn == 3 || scn == 4) in cvtColor" when calculating ORB features on point cloud
3dreconstruction
cvCvtColor
ORB
featuredetector
point_cloud
16
views
no
answers
no
votes
2020-11-26 04:51:41 -0500
DaShirley
How to reduce the time cost of the first DNN inferring with INFERENCE_ENGINE backend ?
cv2.dnn
dnn
opencl
1
2
3
4
5
...
1015
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