First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date
activity ▼
answers
votes
33,464 questions
Tagged
1
view
no
answers
no
votes
2020-07-06 13:33:04 -0500
e1513377
CMake error on Windows when building extra modules and CUDA
opencv_contrib
cmake-gui
34
views
1
answer
no
votes
2020-07-06 13:01:29 -0500
trigal
projectpoints distortion
KITTI
rawdataset
projectPoints
distorted
3d-projection
5
views
no
answers
no
votes
2020-07-06 11:56:56 -0500
drakorg
VideoCapture.read() error description when returning false
videocapture
errorcode
35
views
2
answers
1
vote
2020-07-06 11:25:12 -0500
supra56
can't run HoughCircles on image
opencv
python
image-processing
object-tracking
14
views
no
answers
no
votes
2020-07-06 10:53:09 -0500
Horst
Multithreading Problem
multi-thread
14
views
no
answers
no
votes
2020-07-06 08:25:13 -0500
adamtry
Black line following racecar
Line
linefollowing
racecar
19
views
no
answers
no
votes
2020-07-06 07:28:46 -0500
bbboat
Still cant get "FFMPEG: tag 0x00000021/'!???' is not found" error after build from source
opencv-python
videowriter
20
views
no
answers
no
votes
2020-07-06 05:35:59 -0500
albeh95
How to check if an image is total black [closed]
check
21
views
no
answers
no
votes
2020-07-06 05:15:51 -0500
Danny_00
Laser pointer ideas?
python
laser
30
views
no
answers
no
votes
2020-07-06 03:41:46 -0500
berak
Existing models on images of cars taken horizontally?
drone
vehicle
14
views
no
answers
no
votes
2020-07-05 21:17:54 -0500
intiger
cuda videowriter throw exception
cudacodec
videowriter
12
views
no
answers
no
votes
2020-07-05 17:27:53 -0500
bernard55
in opencv.js function cv.findTransformECC what is inputMask?
OpenCV.js
FindTransformECC
16
views
no
answers
no
votes
2020-07-05 10:20:01 -0500
shiva
Drawing rectangle on NV12 frame without conversion
nv12
cvRectangle
33
views
no
answers
-3
votes
2020-07-05 03:47:23 -0500
Vale
how to use real time face recognition on videos
FaceRecognizer
15
views
no
answers
no
votes
2020-07-05 03:35:24 -0500
Kevinmmhsu
"no element rtspsrc" gstreamer+opencv in win10
rtspsrc
gstreamer
windows
33
views
no
answers
no
votes
2020-07-04 15:56:56 -0500
ejmeitz
namedWindow does not update when resizing
cvNamedWindow
namedwindow
21
views
no
answers
no
votes
2020-07-04 13:10:17 -0500
ajpaezm
Help understanding if fabricant provides OpenCV ready device.
openni
videocapture
32
views
no
answers
no
votes
2020-07-04 12:45:06 -0500
George Profenza
How to use OpenCV 4 in Java on Raspberry PI (armv6 and armv7 Raspian)?
java
arm
jni
30
views
no
answers
no
votes
2020-07-04 07:05:56 -0500
vchill
Unable to build opencv on windows
c++
opencv
opencv_contrib
26
views
no
answers
no
votes
2020-07-04 04:45:41 -0500
albeh95
Isolate object to better detect it
objectdetection
30
views
no
answers
no
votes
2020-07-04 02:42:41 -0500
Proziiis
How to measure circle diameter with camera
vision
object-measurement
picture
camera
18
views
no
answers
no
votes
2020-07-03 16:09:56 -0500
mikekelly
why does opencv_createsamlples only create 1000 sample vector file
opencv_createsamples
opecv_traincascade
53
views
no
answers
no
votes
2020-07-03 14:33:16 -0500
Sara Ahmed
OpenCV Decompose projection matrix outputs
opencv
python
3dreconstruction
Calib3d
projection-matrix
167
views
2
answers
no
votes
2020-07-03 09:45:27 -0500
holger
i am doing a project to predict age and gender using tensorflow and opencv. and how to add path for xml file.
python3
opencv4
24
views
no
answers
no
votes
2020-07-03 08:55:01 -0500
Boilan
Missing python binding, stitcher API
python
image-stitching
16
views
no
answers
no
votes
2020-07-03 08:13:37 -0500
saeb
remove accumulate pixels and fixed one hough line
HoughLines
houghlinesp
accumulate
edges
40
views
1
answer
no
votes
2020-07-03 08:05:08 -0500
supra56
Opencv can't show live webcam footage.What is wrong with my code ?
contours
31
views
no
answers
no
votes
2020-07-03 01:13:57 -0500
Sara Ahmed
OpenCV solvePnPRansac() function
opencv
python
3dreconstruction
computervision
camera
solvePnP
48
views
1
answer
1
vote
2020-07-02 15:51:26 -0500
kpachinger
Extracting feature information from 2D CAD engineering drawings
cad
extraction
2d-image
Engineering
26
views
no
answers
no
votes
2020-07-02 13:24:25 -0500
alan89
Detect head using Haar Cascade, wont detect tilted head?
android
detection
1
2
3
4
5
...
1116
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
python
×5
opencv
×4
3dreconstruction
×2
camera
×2
opencv_contrib
×2
videocapture
×2
videowriter
×2
2d-image
×1
3d-projection
×1
accumulate
×1
android
×1
arm
×1
c++
×1
cad
×1
Calib3d
×1
check
×1
cmake-gui
×1
computervision
×1
contours
×1
cudacodec
×1
cvNamedWindow
×1
cvRectangle
×1
detection
×1
distorted
×1
drone
×1
edges
×1
Engineering
×1
errorcode
×1
extraction
×1
FaceRecognizer
×1
FindTransformECC
×1
gstreamer
×1
HoughLines
×1
houghlinesp
×1
image-processing
×1
image-stitching
×1
java
×1
jni
×1
KITTI
×1
laser
×1
Line
×1
linefollowing
×1
multi-thread
×1
namedwindow
×1
nv12
×1
objectdetection
×1
object-measurement
×1
object-tracking
×1
opecv_traincascade
×1
opencv4
×1
Copyright
OpenCV foundation
, 2012-2018. Content on this site is licensed under a
Creative Commons Attribution Share Alike 3.0
license.
Powered by Askbot version 0.10.2
Please note: OpenCV answers requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×
