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12,357 questions
Tagged
389
views
no
answers
no
votes
2017-10-03 12:26:43 -0600
Aritra
Opencv 3.2 video file not opening
ffmpeg
videocapture
java
797
views
no
answers
no
votes
2018-07-11 06:34:59 -0600
Purva
Memory issue in imread function
c++
opencv
imread
memory_allocation
memoryleak
553
views
no
answers
no
votes
2020-01-05 03:36:38 -0600
ARYL518
combine six ArUco markers into a cuboid marker
aruco
pose-estimation
261
views
no
answers
no
votes
2018-07-20 05:21:13 -0600
ciolo
How to edit image to read text with OCR
android
opencv
java
image
OCR
firebase-mlkit
426
views
no
answers
no
votes
2014-04-10 05:48:06 -0600
wirelesslabs
segmentation fault in image processing using SURF
#surf
310
views
no
answers
no
votes
2015-05-08 13:36:10 -0600
zazarb
opengl support issue?
CvOpenGLCallback
415
views
no
answers
no
votes
2014-05-11 12:59:32 -0600
Luek
Extend cvRect manually
boundingRect
603
views
no
answers
2
votes
2015-01-08 04:00:50 -0600
Nezumi-sama
Given a pair of stereo-calibrated cameras and a set of 2D point correspondences, what would be a proper way to obtain 3D coordinates of those points through triangulation?
opencv
triangulation
triangulatePoints
stereo
Undistort
272
views
no
answers
no
votes
2013-11-05 13:24:49 -0600
Fafa
absdiff Mat and Vec3b assert failed
absdiff
assert
127
views
no
answers
no
votes
2019-06-20 12:27:32 -0600
aditya_mangalampalli
Custom Keras Model Using OpenCV
ios
opencv
keras
141
views
no
answers
no
votes
2015-09-27 12:32:42 -0600
valentine
Using GPU with OpenCV 3.0
gpu#cuda#opencl
1k
views
no
answers
1
vote
2015-08-15 01:19:28 -0600
yuvalg
Camera-Projector calibration Issue
c++
opencv
3dreconstruction
874
views
no
answers
no
votes
2015-06-07 15:19:08 -0600
stillNovice
cv::perspectiveTransform Assertion failed
perspectiveTrans
assertionerror
146
views
no
answers
no
votes
2018-11-12 12:02:55 -0600
kkudryavtsev
Is there any plan to add a custom accelerator device support to OpenCV?
setdevice
add
762
views
no
answers
1
vote
2014-05-21 01:31:22 -0600
abcd_ca
For what reasons can VideoWriter open() return false? Need help debugging.
videowriter
160
views
no
answers
no
votes
2015-03-11 10:06:25 -0600
ElizavetaElagina
What images are recognized best with template matching
templates
recognition
168
views
no
answers
no
votes
2015-04-16 16:49:51 -0600
Joblo
Big problem when I build with arm-linux-gnueabi compiler (linux)
linux
opencv
arm
c++
compile
483
views
no
answers
no
votes
2015-04-13 02:01:37 -0600
kaizen95
How to read the capture pin signal on the opencv-python
python
camera
webcam
162
views
no
answers
no
votes
2017-05-09 16:39:52 -0600
uatkld
Are there current step by step instructions on how to build opencv source with contributing modules?
build
229
views
no
answers
no
votes
2016-02-27 13:03:45 -0600
Swooshftw
Tracking Contours from a ROI
object-tracking
1k
views
no
answers
no
votes
2020-05-26 01:17:05 -0600
berak
How to use FindHomography (parameters) in opencv android studio?
opencv
2k
views
no
answers
no
votes
2015-03-06 09:20:41 -0600
Balam
Problem in building opencv_contrib with opencv-3.0.0-alpha
build-error
1k
views
no
answers
no
votes
2017-06-20 01:06:57 -0600
asobti
Tensorflow YOLO module in OpenCV 3.2
dnn
yolo
3k
views
no
answers
no
votes
2015-11-10 14:21:29 -0600
Gkan
Opencv3 and Python 2.7 on Virtual Enviorement - AttributeError: 'module' object has no attribute 'createLBPHFaceRecognizer'
FaceRecognizer
createLBPH
venv
python2.7
4k
views
no
answers
no
votes
2016-04-28 06:41:07 -0600
WhoAmI
Cannot load info library for OpenCV
opencv4android
android
opencv
678
views
no
answers
no
votes
2015-07-09 03:17:21 -0600
Kailegh
Best method to recognize objects?
c++
objectrecognition
classifier
traffic
188
views
no
answers
no
votes
2019-01-08 02:18:11 -0600
hahah
Measurement of actual object size
measurement
of
actual
object
size
1k
views
no
answers
no
votes
2017-12-21 02:47:37 -0600
Asgarod
Python SimpleBlobDetector.detect() is very slow with big images and can crash
blob-detection
blob-detector
BlobDetection
6k
views
no
answers
3
votes
2015-05-02 04:37:22 -0600
cza-57
Matching shapes with Hausdorff and Shape Context distance
python
matchShapes
distance_metrics
Opencv3.0
3k
views
no
answers
1
vote
2015-02-11 06:53:49 -0600
margaridamfo.gomes
Can't write .mp4 files - Could not open codec 'libx264': Unspecified error
c++
MPEG
codec
mp4
libx264
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