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29,830 questions
Tagged
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
121
views
no
answers
no
votes
2020-08-16 03:47:13 -0600
aligoglos
how to calculate scale with matchTemplate
matchTemplate
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
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
2k
views
no
answers
no
votes
2020-08-17 08:40:44 -0600
Martian
OpenCV in Docker? (C++)
docker
19k
views
1
answer
no
votes
2020-08-17 09:55:18 -0600
berak
VideoCapture in Colab
cv2.videocapture
colab
198
views
no
answers
-1
votes
2020-08-17 13:06:06 -0600
TimK421
Trouble detecting vertical red line in video
houghlinesp
595
views
1
answer
no
votes
2020-08-17 16:18:23 -0600
KyloEntro
OpenCV dnn multi stream
opencv
dnn#opencv
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
618
views
1
answer
no
votes
2020-08-18 10:48:21 -0600
vmishin100
how to solve the Error: Could not find or load main class in opencv3.0.0 with Java eclipse?
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
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
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
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
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 12:34:30 -0600
Nagarjuna
opencv java How to sort contours from left to right [closed]
opencv
java
1k
views
no
answers
no
votes
2020-08-20 01:29:18 -0600
berak
Install OpenCV in Ubuntu 20.04 not working
ubuntu
ipython
376
views
1
answer
no
votes
2020-08-20 04:18:44 -0600
litwi
Identificar plantas mediante imágenes
android
207
views
no
answers
no
votes
2020-08-20 08:48:07 -0600
Bleach
Crop/approximate contours
c++
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
694
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
512
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
435
views
2
answers
no
votes
2020-08-22 01:59:52 -0600
berak
Fisheye calibration image not detecting any corners
findChessboardCorner
438
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
728
views
no
answers
no
votes
2020-08-22 10:16:30 -0600
whitebenoit
Evaluate the score of template matching when template's size equals image's size
templateMatching
cpp
score
1k
views
no
answers
1
vote
2020-08-22 11:03:57 -0600
usamajamil32
Make Edges of the Image smooth Ask
image-processing
2k
views
1
answer
1
vote
2020-08-22 16:52:16 -0600
opencvstudent
normalization not working
cv2.normalize
155
views
1
answer
1
vote
2020-08-23 11:09:49 -0600
berak
how to calculate VARI using open cv ?
VARI
447
views
no
answers
no
votes
2020-08-24 01:02:41 -0600
berak
request help,Status -43: CL_INVALID_BUILD_OPTIONS
android
opencl
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