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
243
views
no
answers
-1
votes
2018-03-07 20:32:37 -0600
aoczko01
Unknown crash when getting a double[] from a Mat
android
586
views
no
answers
no
votes
2013-07-31 03:04:13 -0600
tenta4
OpenCV calibrateCamera function question
opencv
calibration
875
views
no
answers
no
votes
2014-05-02 03:28:15 -0600
Leena
JNI with opencv_java248
opencv
jni
java
c++
2k
views
no
answers
no
votes
2015-08-31 03:18:15 -0600
smygarn
Object detection, Kinect Depth images
edgedetection
object_recognition
objectmatching
objectdetection
173
views
no
answers
-1
votes
2020-09-18 03:59:39 -0600
gloria1
obj reconition algorithm 2D CAMERA B&W
objectrecognition
algorithm
2d-image
227
views
no
answers
no
votes
2013-10-19 10:43:44 -0600
semireg
Simple Counting Hor/Ver Lines
counting
vertical
horizontal
lines
629
views
no
answers
no
votes
2020-07-12 13:15:56 -0600
superfly
why invert pose
matrices
pose_estimation
camera-pose
coordinates
2k
views
no
answers
2
votes
2014-05-27 01:14:43 -0600
puneetdabulya
Flann indexing multiple descriptors and saving in file
flann
FlannBasedMatcher
#FLANN
lsh
knnmatch
638
views
no
answers
2
votes
2019-03-06 11:42:35 -0600
pcocv
Camera Calibration for underwater lens
underwater
260
views
no
answers
no
votes
2016-12-07 09:33:01 -0600
OpenCVNewbie
Improve detection of microbes
edge-detection
689
views
no
answers
2
votes
2014-05-07 02:44:36 -0600
matspetter
Opencv4Android on Nexus 5, Cannot create OpenGL context
opengl
nexus5
android
567
views
no
answers
no
votes
2020-08-04 04:03:50 -0600
boaz001
Memory leak in RGB2Lab
RGB2Lab
memoryleak
5k
views
no
answers
no
votes
2018-08-22 04:17:13 -0600
Samjith888
Which Features extraction method will be more accurate for classifying the images based on their Clarity?
imagescopencvc++
opencvC++
featureextraction
805
views
no
answers
no
votes
2020-09-11 15:06:37 -0600
ConnorM
Triangulation - Combining Data from Multiple Cameras
camera
calibration
triangulation
stereo
multiple
628
views
no
answers
no
votes
2018-01-17 00:26:44 -0600
Vishudh
How to extract color patches from image?
colorblob
android
316
views
no
answers
no
votes
2014-12-02 09:15:24 -0600
Matt
trouble with opencv installation on windows7 64bit
opencv
581
views
no
answers
9
votes
2014-12-01 09:27:58 -0600
StevenPuttemans
[ATTENTION] Regarding topics and answers not appearing right away, but requesting moderation
SPAM
flood
posts
not
posted
1k
views
no
answers
1
vote
2014-01-21 15:44:32 -0600
nLs
Make use of dual or multi core with OpenCV (ARM cortex A9)
arm
thread
core
178
views
no
answers
no
votes
2016-03-31 14:16:35 -0600
Arritmic
Accuracy in cv::mean function between opencv 2.4.9 and opencv 3.1.0
opencv3.1.0
mean
stat
core
accurary
731
views
no
answers
no
votes
2017-11-20 05:22:33 -0600
lacasrac
OpenCV document detection FIX
opencv
edge-detection
2k
views
no
answers
no
votes
2014-06-02 02:12:18 -0600
norzanbzura
How to measure the dimension of object with OpenCV?
#measure
#object
#opencv
300
views
no
answers
no
votes
2018-09-05 03:11:09 -0600
csggnn
Writing functions accepting inputs of type cv::Mat or cv::UMat
UMat
_InputArray
_OutputArray
2k
views
no
answers
no
votes
2015-06-01 12:14:28 -0600
tom_online
image compare
image
compare
58
views
no
answers
no
votes
2019-10-30 08:03:25 -0600
arharvey
Why isn't saturate_cast supported for 32S?
arithmetic
5k
views
no
answers
no
votes
2017-03-08 04:02:50 -0600
yxchng
Why do I have the following error when using videoWriter.write()?
cvVideoWriter
2k
views
no
answers
1
vote
2014-01-21 22:13:54 -0600
Jim
UIImage to cv::Mat and back to UIImage rotating 90 degrees
iOS7
UIImage
rotated
1k
views
no
answers
no
votes
2020-11-19 12:00:05 -0600
[email protected]
problem trying to install opencv-contrib-python
install
failure
768
views
no
answers
no
votes
2016-04-17 07:45:33 -0600
mousomer
resize memory leak (minor)
resize
Valgrind
memoryleak
663
views
no
answers
-1
votes
2015-11-03 07:15:16 -0600
Priyanka
OpenCV Error: Incorrect size of input array (Non-positive width or height) in unknown function, file ..\..\..\src\opencv\modules\core\src\array.cpp, line 113
keypoint-matching
362
views
no
answers
no
votes
2016-08-10 09:31:56 -0600
qxzw
How to insert smaller images over bigger (webcam frames, realtime stream)?
python
draw
image
over
frame
Blend
« previous
1
...
390
391
392
393
394
...
412
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×4
android
×3
calibration
×2
core
×2
edge-detection
×2
image
×2
memoryleak
×2
2d-image
×1
accurary
×1
algorithm
×1
arithmetic
×1
arm
×1
Blend
×1
c++
×1
camera
×1
camera-pose
×1
colorblob
×1
compare
×1
coordinates
×1
counting
×1
cvVideoWriter
×1
draw
×1
edgedetection
×1
failure
×1
featureextraction
×1
flann
×1
#FLANN
×1
FlannBasedMatcher
×1
flood
×1
frame
×1
horizontal
×1
imagescopencvc++
×1
_InputArray
×1
install
×1
iOS7
×1
java
×1
jni
×1
keypoint-matching
×1
knnmatch
×1
lines
×1
lsh
×1
matrices
×1
mean
×1
#measure
×1
multiple
×1
nexus5
×1
not
×1
#object
×1
objectdetection
×1
objectmatching
×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
×
