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
29,830 questions
Tagged
513
views
1
answer
1
vote
2020-08-21 01:22:25 -0600
berak
Object detection using ORB gives more than acceptable number of false positive and false negatives
ORB
object-detection
feature-matching
false-positive
505
views
no
answers
no
votes
2020-08-20 08:59:18 -0600
KyloEntro
Connect several cameras openCV python
python
528
views
no
answers
no
votes
2020-08-20 09:17:22 -0600
comdie
Extract data from a scoreboard
OCR
opencv
Text
detect
python
207
views
no
answers
no
votes
2020-08-20 08:48:07 -0600
Bleach
Crop/approximate contours
c++
695
views
1
answer
no
votes
2020-08-20 23:26:24 -0600
drfastolfe
OpenCV 3.4.11 build with Visual Studio 2019 fails
visualstudio2019
Windows10
from-source
1k
views
no
answers
no
votes
2020-08-20 01:29:18 -0600
berak
Install OpenCV in Ubuntu 20.04 not working
ubuntu
ipython
180
views
no
answers
1
vote
2020-08-19 11:53:09 -0600
e1513377
Does OpenCV in C++ take full advantage of Multi-GPUs?
gpu
1k
views
no
answers
no
votes
2020-08-19 11:39:40 -0600
Fabrice_06
Wrong FPS and FRAME_COUNT read from a wmv file with opencv4.0 under python
get
CAP_PROP_FPS
CAP_PROP_FRAME_COUNT
376
views
1
answer
no
votes
2020-08-20 04:18:44 -0600
litwi
Identificar plantas mediante imágenes
android
348
views
no
answers
1
vote
2020-08-19 07:14:00 -0600
Hussan
Where do we place an Axis camera example using OpenCV in the repo?
AXIS
sample
code
681
views
no
answers
no
votes
2020-08-19 02:25:23 -0600
dustsigns
Fundamental matrix and epipolar lines from known camera parameters
Stereovision
epipolar-geometry
c++
4.4.0
3k
views
no
answers
no
votes
2020-08-24 22:08:38 -0600
cherie
OpenCV Net from ONNX not works
readNetFromONNX
cv2.dnn
1k
views
no
answers
no
votes
2020-08-19 12:34:30 -0600
Nagarjuna
opencv java How to sort contours from left to right [closed]
opencv
java
421
views
1
answer
-1
votes
2020-08-18 11:09:13 -0600
berak
Self contained (no root/sudo access) java build for RHEL, OEL 6.10
self_contained
linux
no_root_access
no_sudo
opencv_java
329
views
no
answers
no
votes
2020-08-18 09:42:15 -0600
Der Luftmensch
One Hot Encode function
type
Mat
encode
one-hot
function
template
595
views
1
answer
no
votes
2020-08-17 16:18:23 -0600
KyloEntro
OpenCV dnn multi stream
opencv
dnn#opencv
198
views
no
answers
-1
votes
2020-08-17 13:06:06 -0600
TimK421
Trouble detecting vertical red line in video
houghlinesp
2k
views
no
answers
no
votes
2020-08-17 08:40:44 -0600
Martian
OpenCV in Docker? (C++)
docker
439
views
no
answers
no
votes
2020-08-22 04:49:56 -0600
berak
cv2.line(imgHist, (x, img.shape[0]), (x, img.shape[0]-intensity//255), (255, 0, 255), 1, lineType=8, shift=0)
opencv_cv2.line
2k
views
1
answer
1
vote
2020-08-17 05:16:22 -0600
berak
How can I modify ROI and then add it to the original image using Python?
opencv
python
image-processing
1k
views
no
answers
no
votes
2020-08-17 00:20:48 -0600
JK Sutradhor
How to use OpenCV in PHP? [closed]
php-opencv
php
opencv
121
views
no
answers
no
votes
2020-08-16 03:47:13 -0600
aligoglos
how to calculate scale with matchTemplate
matchTemplate
226
views
1
answer
no
votes
2020-08-16 01:46:40 -0600
berak
Not correctly configuring ANN training data and layers
ann
machinelearning
Neural
neural_network
1k
views
1
answer
no
votes
2020-08-16 02:14:36 -0600
berak
How to use pointPolygonTest function for a polygon
pointPolygonTest
polygon
conversion
893
views
no
answers
no
votes
2020-08-14 15:09:03 -0600
ConnorM
stereoCalibrate with RANSAC?
calibrate
stereo
camera
triangulation
130
views
no
answers
no
votes
2020-08-14 11:14:12 -0600
berak
best way to remove long skinny black vertical lines from image?
vertical
erode
2k
views
no
answers
no
votes
2020-08-15 03:36:45 -0600
Gerharddc
Triangulate points from 2 images to estimate the pose on a third
solvePnpRansac
triangulatePoints
python
CameraMatrix
599
views
1
answer
no
votes
2020-08-14 08:53:20 -0600
berak
mat.at() not returning correct values after setting labels with rowrange()
rowrange
Mat
178
views
no
answers
no
votes
2020-08-14 05:21:32 -0600
Shamim
I can't find the alphamat module in the Android SDK releases 4.4.0.
opencv_contrib
android
197
views
no
answers
no
votes
2020-08-13 23:57:01 -0600
Nija Wat
Is OpenCV allow for remote desktop connection and VDI
VDI
« previous
1
...
15
16
17
18
19
...
995
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×5
python
×4
android
×2
c++
×2
Mat
×2
4.4.0
×1
ann
×1
AXIS
×1
calibrate
×1
camera
×1
CameraMatrix
×1
CAP_PROP_FPS
×1
CAP_PROP_FRAME_COUNT
×1
code
×1
conversion
×1
cv2.dnn
×1
detect
×1
dnn#opencv
×1
docker
×1
encode
×1
epipolar-geometry
×1
erode
×1
false-positive
×1
feature-matching
×1
from-source
×1
function
×1
get
×1
gpu
×1
houghlinesp
×1
image-processing
×1
ipython
×1
java
×1
linux
×1
machinelearning
×1
matchTemplate
×1
Neural
×1
neural_network
×1
no_root_access
×1
no_sudo
×1
object-detection
×1
OCR
×1
one-hot
×1
opencv_contrib
×1
opencv_cv2.line
×1
opencv_java
×1
ORB
×1
php
×1
php-opencv
×1
pointPolygonTest
×1
polygon
×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
×
