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29,830 questions
Tagged
227
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
565
views
no
answers
no
votes
2020-09-25 05:21:10 -0600
Shassk
Determine new coordinates of pixel after calibration + remap
calibration
839
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
294
views
no
answers
no
votes
2020-09-24 13:01:09 -0600
Mark S
ArUco Thresholding Window Size
aruco
adaptiveThreshold
threshold
1k
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
398
views
no
answers
no
votes
2020-09-24 07:37:13 -0600
Maxime
Why imread is reallocating data buffer
imread
c++
pointers
751
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
7k
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
513
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
328
views
1
answer
no
votes
2020-09-23 05:57:04 -0600
berak
can't find QuasiDenseStereo in opencv_contrib_python
python
stereo
QuasiDenseStereo
202
views
no
answers
no
votes
2020-09-23 05:03:17 -0600
PavelP
knnMatch/BFHamming bug or not?
knnmatch
features2d
ORB
akaze
c++
331
views
no
answers
no
votes
2020-09-23 03:16:31 -0600
berak
how to get a outputarrayofarrays
data-structure
577
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
460
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
463
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
402
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
108
views
no
answers
no
votes
2020-09-21 20:46:08 -0600
Mellow_0529
Stereo match based on feature points.
stereo_match
205
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
359
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
425
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
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