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
2k
views
no
answers
no
votes
2020-12-02 03:30:41 -0600
maw
imshow no window on Mac Big Sur with Python [closed]
opencv
python
imshow
1k
views
1
answer
1
vote
2020-12-02 21:10:57 -0600
sturkmen
Did convexityDefects function behaviour changed between cv2 versions 4.2.0 and 4.3.0?
python
build_opencv_python
convexityDefects
contours
364
views
1
answer
-1
votes
2020-12-02 08:54:07 -0600
berak
Finding center of contour in a game
findContours
846
views
1
answer
no
votes
2020-12-03 11:36:09 -0600
crackwitz
Training for roof tile detection
object_recognition
652
views
no
answers
no
votes
2020-12-02 08:00:45 -0600
Ting
Reduce the opencv framework size by using size optimization
size
optimization
ios
xcode
gcc
compiler
1k
views
no
answers
no
votes
2020-12-02 09:38:34 -0600
amateurpirate
Duplicate frames in saved file from cv2.VideoWriter
CAP_PROP_FPS
USBcamera
cv2.videocapture
python
cv2.VideoWriter
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
2k
views
1
answer
1
vote
2020-12-03 07:37:47 -0600
supra56
I am create a rectangle box in video stream using python. how to apply face detection in rectangular box inside only and don't need out of the rectangular box detect face
opencv-python
1k
views
1
answer
1
vote
2020-12-03 07:02:10 -0600
fadeto404
Pixel-wise matrix multiplication
matrix
vector
multiplication
1k
views
1
answer
no
votes
2020-12-03 09:34:06 -0600
berak
Real-time webcam stream very slow with pixel manipulation
opencv
python
985
views
1
answer
1
vote
2020-12-05 05:14:19 -0600
Eduardo
historical performance test cast data in build pipeline?
performance
testing
build
pipeline
3k
views
1
answer
no
votes
2020-12-03 11:11:26 -0600
crackwitz
Convert a Video.mp4 in a 2D Matrix where each row represents a frame
python3
opencv
639
views
1
answer
1
vote
2020-12-03 16:31:28 -0600
crackwitz
How to discover the input and output format of a cv::dnn::Net?
deep-neural-network
c++#dnn#opencv
984
views
no
answers
no
votes
2020-12-04 09:17:00 -0600
fafafafa
pre-built OpenCv with extra modules for java
java
opencv
373
views
no
answers
no
votes
2020-12-04 06:51:01 -0600
berak
i am creating a dataset for real time face recognition using python. i want it should intimate if the image already available in dataset. how to implement in opencv?
opencv-python
3k
views
1
answer
1
vote
2020-12-07 08:58:34 -0600
hammockman
cv::dnn::blobFromImage() works in python but fails in c++
c++
dnn
opencv
blobfromImage
295
views
1
answer
no
votes
2020-12-05 04:28:02 -0600
berak
Opencv based annotation is open
opencv_annotation
cannot_open
1k
views
1
answer
no
votes
2020-12-08 09:54:18 -0600
ConnorM
Triangulation with Ground Plane as Origin
calibration
cameras
transformation
rotation
translation
1k
views
no
answers
no
votes
2020-12-05 08:45:02 -0600
fafafafa
Error building opencv with extra modules in Visual Studio 2013
opencv
java
4k
views
1
answer
no
votes
2020-12-06 07:38:57 -0600
Wilan
Reading and Writing Videos: Python on GPU with CUDA - VideoCapture and VideoWriter
Video
835
views
no
answers
no
votes
2020-12-06 08:22:42 -0600
sigmoid90
Problem with building pose Mat from rotation and translation matrices
transformation
matrix
camera-pose
camerarotation
translation
1k
views
2
answers
no
votes
2020-12-07 08:03:52 -0600
kbarni
getting out of arguments
argument
1k
views
3
answers
no
votes
2020-12-11 05:59:55 -0600
sturkmen
Optimizations on opencv hog implementation(interp_weight, gaussian)
HOGDescriptor
HOG
hogcompute
1k
views
no
answers
no
votes
2020-12-07 12:20:58 -0600
coldheat
tvec and coordinate systems q
opencv
camera
matrix
solvePnP
planes
coordinates
1k
views
no
answers
no
votes
2020-12-07 14:26:14 -0600
fafafafa
errors when building opencv 4.5.0 wit extra modules using Mingw [closed]
opencv
java
38k
views
no
answers
-1
votes
2020-12-08 03:23:09 -0600
revathi
I am creating web application for face recognition using python flask app. I am already create static dataset. I need the text box to enter the name of the person after that capture image and it will store in to the dataset. [closed]
off-topic
1k
views
no
answers
no
votes
2020-12-08 11:05:40 -0600
PGTART
stitcher advanced api everything get wrapped arround
image-stitching
4k
views
no
answers
no
votes
2020-12-09 06:39:18 -0600
ryan227
Darknet makefile error when opencv=1, ubuntu 18.04
darknet
1k
views
1
answer
no
votes
2020-12-09 11:15:18 -0600
crackwitz
How to avoid potential noise after Canny?
video-processing
6k
views
1
answer
no
votes
2020-12-10 13:16:05 -0600
crackwitz
Lot of Delay with my RTSP cam with OpenCV on Python
cv#opencv#python
« previous
1
...
991
992
993
994
995
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×8
python
×4
java
×3
matrix
×3
ios
×2
opencv-python
×2
transformation
×2
translation
×2
argument
×1
blobfromImage
×1
build
×1
build_opencv_python
×1
c++
×1
calibration
×1
camera
×1
camera-pose
×1
camerarotation
×1
cameras
×1
cannot_open
×1
CAP_PROP_FPS
×1
c++#dnn#opencv
×1
compiler
×1
contours
×1
convexityDefects
×1
coordinates
×1
cv2.videocapture
×1
cv2.VideoWriter
×1
cv#opencv#python
×1
darknet
×1
deep-neural-network
×1
delegate
×1
dnn
×1
findContours
×1
gcc
×1
HOG
×1
hogcompute
×1
HOGDescriptor
×1
image
×1
image-stitching
×1
imshow
×1
multiplication
×1
object_recognition
×1
off-topic
×1
opencv_annotation
×1
optimization
×1
performance
×1
pipeline
×1
planes
×1
process
×1
processing
×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
×
