First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
This forum is disabled, please visit
https://forum.opencv.org
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date
activity
answers ▲
votes
12,357 questions
Tagged
479
views
no
answers
1
vote
2014-04-03 14:47:09 -0600
muser
ocl:detectmultiscale error with traincascade
#OpenCL
#CascadeClassifier
2k
views
no
answers
no
votes
2015-10-14 07:07:00 -0600
OlaruVlad
Contour matchshapes in openCV
opencv
python
match-shapes
1k
views
no
answers
1
vote
2018-05-03 12:04:21 -0600
eoyster417
OpenCV calibration vs. Matlab calibration accuracy
calibration
calibrateCamera
Matlab
converge
error
accuracy
228
views
no
answers
no
votes
2020-12-02 16:22:39 -0600
pooooppppyyjhb
Why is the processImage delegate not getting called automatically?
processing
image
process
delegate
ios
unity
449
views
no
answers
-1
votes
2020-07-11 22:48:56 -0600
despair104
How to solve this? (finding an image)
opencv
python3
feature-detection
349
views
no
answers
no
votes
2019-06-10 04:52:50 -0600
berak
Matchtemplate(Normalized Cross Correlation) same size two picture
c++
matchTemplate
963
views
no
answers
1
vote
2015-09-17 09:00:33 -0600
CallumjCourt
DecomposeProjectionMatrix clarification
computervision
camera
1k
views
no
answers
no
votes
2017-10-16 13:12:37 -0600
furlongmt
OpenCV Object Tracker Performance (TBB vs. pthreads)
objecttracking
performance
3.0.0
tracking
Multithreading
79
views
no
answers
no
votes
2014-07-25 16:08:38 -0600
nemoprince
kdtreeparams with 3 dims mat problem
kdtree
3dim
148
views
no
answers
no
votes
2018-04-13 07:42:39 -0600
mike_perreman
Cross platform cuda applications
CUDA
OpenCV3.4.0
mingw
763
views
no
answers
-3
votes
2017-12-13 18:55:40 -0600
nastyheatnor
Int object not iterable? (Python) (URGENT, NEEDED BY TONIGHT)
3.1.0opencv
EigenFace
eigenfaces
1k
views
no
answers
no
votes
2019-04-13 10:09:14 -0600
A85
Failing to read pixel of grayscale image as float
grayscale
float
531
views
no
answers
no
votes
2015-08-17 23:11:38 -0600
Nbb
backgroundSubtraction on multiple frames with OpenMP ( slow performance )
openmp
backgroundMOG2
412
views
no
answers
no
votes
2015-07-07 07:57:21 -0600
stillNovice
Feature matching using three images?
ORB
features
feature-matching
118
views
no
answers
1
vote
2015-07-09 03:00:10 -0600
erogol2
Opencv normalize casts small values to zero
Normalization
numbers
1k
views
no
answers
no
votes
2018-06-22 08:13:56 -0600
tommy61157
Using fisheye correction program works over webcam, but not rtsp stream?
opencv
rtsp
webcam
c++
ipcam
892
views
no
answers
no
votes
2018-11-23 00:30:28 -0600
Kafan
Is Neon Optimization enabled by default in Official OpenCV 3.4.4 prebuilt android libraries?
arm-neon
3.4.4
opencv
android
libraries
387
views
no
answers
no
votes
2019-07-31 14:35:03 -0600
eric_engineer
Improving or adjusting ORB performance
ORB
454
views
no
answers
no
votes
2015-06-25 10:27:49 -0600
Suman_83
corner detection accurately
corner
detection
camera
calibration
5k
views
no
answers
no
votes
2013-10-04 03:55:44 -0600
McPhatty
features2d: Keypoint matching very slow
feature2d
keypoint-matching
bfmatcher
236
views
no
answers
no
votes
2015-08-03 05:09:10 -0600
BenBenJones
QT not found when compiling OpenCV on another machine
compile
qt
DLL
PATH
392
views
no
answers
1
vote
2019-03-25 23:42:57 -0600
KansaiRobot
Counting tablets
watershed
image-processing
Count
113
views
no
answers
no
votes
2018-02-27 02:09:58 -0600
LBerger
Movement of "X" and "Y" as the image is moved in "Z" axis
Z-AXIS-MOVEMENT
203
views
no
answers
no
votes
2016-04-27 02:32:48 -0600
2D3D
Deciding if a ball is inside a goal via Image Processing
image-processing
12k
views
no
answers
2
votes
2015-05-01 03:04:17 -0600
bharathmthekkedath
OpenCV Library package was not found! Try to install it? (Button : Yes/No)
android
opencv-manager
650
views
no
answers
no
votes
2019-06-12 14:18:12 -0600
CVPilot
Convert yaw, pitch and roll values to rVec for projectPoints.
attitude
yaw
pitch
roll
rvec
projectPoints
858
views
no
answers
2
votes
2015-01-12 15:05:12 -0600
Doombot
About OpenCV's roadmap
roadmap
2k
views
no
answers
no
votes
2015-02-13 10:31:49 -0600
Doombot
Subpixel location of keypoints. Why?
fast
brisk
keypoint
keypoint-matching
ORB
104
views
no
answers
no
votes
2017-10-15 02:37:37 -0600
Martian
realtime response of OpenCV Qt plugin
Rt
plugin
realtime
response
379
views
no
answers
no
votes
2018-10-04 12:13:47 -0600
kingst
iOS 12 + Mac OS X Mojave EXC_BAD_ACCESS on cvtColor
ios
« previous
1
...
327
328
329
330
331
...
412
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×4
ORB
×3
android
×2
c++
×2
calibration
×2
camera
×2
image-processing
×2
ios
×2
keypoint-matching
×2
3.0.0
×1
3.1.0opencv
×1
3.4.4
×1
3dim
×1
accuracy
×1
arm-neon
×1
attitude
×1
backgroundMOG2
×1
bfmatcher
×1
brisk
×1
calibrateCamera
×1
#CascadeClassifier
×1
compile
×1
computervision
×1
converge
×1
corner
×1
Count
×1
CUDA
×1
delegate
×1
detection
×1
DLL
×1
EigenFace
×1
eigenfaces
×1
error
×1
fast
×1
feature2d
×1
feature-detection
×1
feature-matching
×1
features
×1
float
×1
grayscale
×1
image
×1
ipcam
×1
kdtree
×1
keypoint
×1
libraries
×1
match-shapes
×1
matchTemplate
×1
Matlab
×1
mingw
×1
Multithreading
×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
×