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
224
views
no
answers
no
votes
2020-09-25 05:34:38 -0600
Supreeth Kumar Y P
How to update UMat when Mat is updated?
c++
opencv
Mat
UMat
opencl
554
views
no
answers
no
votes
2020-09-25 05:21:10 -0600
Shassk
Determine new coordinates of pixel after calibration + remap
calibration
827
views
no
answers
no
votes
2020-09-25 02:54:32 -0600
wil-den
peculiar docker problem
opencv-python
docker
error
strange
3k
views
1
answer
1
vote
2020-09-24 15:46:36 -0600
archimedium
warpPerspective() to a different origin [SOLVED]
geometric-transform
2k
views
1
answer
no
votes
2020-09-24 14:05:44 -0600
sturkmen
Detect objects even though they touch the border of an image
opencv#python
286
views
no
answers
no
votes
2020-09-24 13:01:09 -0600
Mark S
ArUco Thresholding Window Size
aruco
adaptiveThreshold
threshold
977
views
no
answers
no
votes
2020-09-24 11:27:38 -0600
Maxime
Imread with preallocated data pointer (cuda unified memory) is reallocating with the exact same size, but shouldn't [closed]
c++
imread
CUDA
memory_allocation
12k
views
1
answer
no
votes
2020-09-24 10:44:53 -0600
berak
how to solve (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::detectMultiScale'
opencv
python
396
views
no
answers
no
votes
2020-09-24 07:37:13 -0600
Maxime
Why imread is reallocating data buffer
imread
c++
pointers
745
views
no
answers
no
votes
2020-09-24 05:42:44 -0600
Den
Opencv.js - findPerspective returns wrong corners coordinates
js
opencv-js
OpenCV.js
6k
views
1
answer
no
votes
2020-09-24 05:12:14 -0600
mvuori
cv:imwrite Python error with Windows: can't open file for writing: permission denied
python3
windows
imwrite
opencv
510
views
no
answers
no
votes
2020-09-24 01:19:44 -0600
aiubian
What's the pseudocode or algorithm inside solvePnP's SOLVEPNP_ITERATIVE flag?
solvePnP
Levenberg-Marquardt
SOLVEPNP_ITERATIVE
1k
views
no
answers
no
votes
2020-09-23 07:41:59 -0600
Bluesailor
no such module in import on Xcode with cocoapod OpenCV2
xcode-12
opencv
325
views
1
answer
no
votes
2020-09-23 05:57:04 -0600
berak
can't find QuasiDenseStereo in opencv_contrib_python
python
stereo
QuasiDenseStereo
198
views
no
answers
no
votes
2020-09-23 05:03:17 -0600
PavelP
knnMatch/BFHamming bug or not?
knnmatch
features2d
ORB
akaze
c++
309
views
no
answers
no
votes
2020-09-23 03:16:31 -0600
berak
how to get a outputarrayofarrays
data-structure
538
views
1
answer
-1
votes
2020-09-23 01:34:05 -0600
berak
What are realistic processing times for object tracking
image-processing
computer-vision
6k
views
1
answer
1
vote
2020-09-22 15:55:52 -0600
aqiff98
Error importing cv2 after compiling OpenCV from source (Python)
opencv#python
2k
views
1
answer
no
votes
2020-09-22 10:41:39 -0600
ConnorM
Assertion Failed ( fabs(sc) > DBL_EPSILON ) using aruco::calibrateCameraCharuco
aruco
calibration
camera
charuco
calibrateCamera
1k
views
1
answer
no
votes
2020-09-22 10:41:03 -0600
ConnorM
Chessboard Calibration DBL_EPSILON error
camera
calibration
stereo
chessboard
447
views
no
answers
no
votes
2020-09-22 10:26:47 -0600
ConnorM
Poor Rectification Results After Good(?) Intrinsic/Extrinsic Parameter Estimation
camera
calibration
triangulation
error
439
views
no
answers
no
votes
2020-09-22 08:00:02 -0600
W.V.S.
identical object detection
object_recognition
186
views
1
answer
no
votes
2020-09-22 02:32:00 -0600
squenix008
Cant load images after adding opencv_face450.dll.a libraries
Facemark
400
views
1
answer
no
votes
2020-09-22 01:49:41 -0600
berak
Brox Optical Flow - Python Binding
BroxOpticalFlow
python
52k
views
1
answer
-1
votes
2020-09-22 01:28:13 -0600
berak
problem with cv2.imshow() method
imshow
107
views
no
answers
no
votes
2020-09-21 20:46:08 -0600
Mellow_0529
Stereo match based on feature points.
stereo_match
198
views
no
answers
no
votes
2020-09-21 16:36:45 -0600
Mobtaker
draw aruco global coordinate system on the frame
aruco
coordinate
system
ratio
327
views
1
answer
-1
votes
2020-09-21 10:47:37 -0600
squenix008
seamlessClone invoke causes compilation error
seamlessClone
1k
views
no
answers
no
votes
2020-09-21 10:31:24 -0600
marouaneghoulami
How to pre-process images for OCR ?
OCR
preprocessing
Binarization
399
views
no
answers
-1
votes
2020-09-21 07:51:23 -0600
hoseinimage
FileNotFoundError: [Errno 2] No such file or directory: 'low-poly-fox-by-pixelmannen.mtl' [closed]
error
3dmodel
« previous
1
...
11
12
13
14
15
...
995
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
c++
×4
calibration
×4
opencv
×4
aruco
×3
camera
×3
error
×3
python
×3
imread
×2
opencv#python
×2
stereo
×2
3dmodel
×1
adaptiveThreshold
×1
akaze
×1
Binarization
×1
BroxOpticalFlow
×1
calibrateCamera
×1
charuco
×1
chessboard
×1
computer-vision
×1
coordinate
×1
CUDA
×1
data-structure
×1
docker
×1
Facemark
×1
features2d
×1
geometric-transform
×1
image-processing
×1
imshow
×1
imwrite
×1
js
×1
knnmatch
×1
Levenberg-Marquardt
×1
Mat
×1
memory_allocation
×1
object_recognition
×1
OCR
×1
opencl
×1
opencv-js
×1
OpenCV.js
×1
opencv-python
×1
ORB
×1
pointers
×1
preprocessing
×1
python3
×1
QuasiDenseStereo
×1
ratio
×1
seamlessClone
×1
solvePnP
×1
SOLVEPNP_ITERATIVE
×1
stereo_match
×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
×
