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12,357 questions
Tagged
418
views
no
answers
no
votes
2020-10-06 10:22:41 -0600
berak
Building opencv.js on MAC fails undefined symbol: __tls_base
OpenCV.js
Emscripten
tls_base
176
views
no
answers
no
votes
2020-10-06 08:53:59 -0600
mimeluff
Fisheye --> Undistorted --> Fisheye
python
142
views
no
answers
-1
votes
2020-10-06 08:51:57 -0600
Sue
How can I get just one rgb value in a video from ROI's center
python
365
views
no
answers
no
votes
2020-10-06 03:44:55 -0600
aiubian
SOLVEPNP_ITERATIVE vs SOLVEPNP_EPNP vs SOLVEPNP_P3P vs solvePnPRansac - Which to use and when to use?
solvePnP
SOLVEPNP_ITERATIVE
SOLVEPNP_P3P
SOLVEPNP_EPNP
106
views
no
answers
no
votes
2020-10-05 14:36:50 -0600
yurky
Does parallel_for_ block until all threads complete?
parallelization
CUDA
306
views
no
answers
no
votes
2020-10-05 09:49:04 -0600
tim-hilt
GMS-matcher doesn't write to Output-Vector
image-matching
c++
python
ORB
gms-matcher
567
views
no
answers
no
votes
2020-10-05 03:26:29 -0600
Jiftoo
What would be the best approach to detect walls or corridors in this game?
edge-detection
game
4k
views
no
answers
no
votes
2020-10-04 21:16:06 -0600
Deauther_2560
f= cv2.dnn.readNet(prototxtPath, weightsPath) cv2.error: OpenCV(4.4.0) C:\caffe\caffe_io.cpp:1121: error: (-2:Unspecified error) FAILED: fs.is_open(). Can't open "\deploy.prototxt" in function 'cv::dnn::ReadProtoFromTextFile'
Open
cvnpythonopenvideo
2k
views
no
answers
no
votes
2020-10-04 08:27:29 -0600
ilouzl
VideoWriter not working on MacOS
videowriter
python
pip
macos
cv2.VideoWriter
codec
304
views
no
answers
no
votes
2020-10-04 03:17:17 -0600
Dudi
crash in cv::Mat release function
opencv
crash
release
224
views
no
answers
no
votes
2020-10-03 09:59:44 -0600
firebladed
What type shoukd be used cv::Mat.forEach on 16bit Greyscale (CV_16UC1)
forEach
349
views
no
answers
no
votes
2020-10-03 08:13:01 -0600
candleboy_
I'm having major issues with setting up h/w accelerated video capture on Windows 10. Would appreciate any and all help and advice.
windows
videocapture
1k
views
no
answers
2
votes
2020-10-03 00:34:42 -0600
Stéphane Charette
what are the video plugins?
c++
videocapture
plugin
ubuntu
1k
views
no
answers
no
votes
2020-10-04 00:00:49 -0600
seva
Stitching pictures from rotating camera
rotating
camera
homography
fov
360
143
views
no
answers
no
votes
2020-10-02 10:23:38 -0600
HunterP
Computing distance of identified object with stereoCalibrate() and stereo(), not whole depth map
stereo
DisparityMap
786
views
no
answers
no
votes
2020-10-02 09:48:20 -0600
firebladed
Mlx90640 no video stream
mlx90640
video4linux
i2c-video
250
views
no
answers
no
votes
2020-10-01 06:27:35 -0600
berak
np.ones() shape resize using cv.trackbar
resize
zeros
trackbar
1k
views
no
answers
-2
votes
2020-10-07 07:10:32 -0600
supra56
How to show the offset difference value between base image and reference image in OpenCV?
offset
Difference
value
235
views
no
answers
no
votes
2020-09-30 11:21:37 -0600
csggnn
UI calls in different threads (imshow) how to detect and avoid.
imshow
highgui
multithread
728
views
no
answers
no
votes
2020-09-30 19:18:00 -0600
Der Luftmensch
crash in Mat::release()
crash
release
287
views
no
answers
no
votes
2020-09-30 04:05:24 -0600
koumeravinus
model.forward give an error. opencv.js
OpenCV.js
ionic
angular
1k
views
no
answers
no
votes
2020-09-30 12:40:31 -0600
bluehawk91
How to Align two images?
image-alignment
1k
views
no
answers
no
votes
2020-09-29 06:44:22 -0600
Shassk
undistort() and remap() give different results
Undistort
remap
1k
views
no
answers
no
votes
2020-09-29 05:45:21 -0600
herbata666
Android - access hardware camera with Opencv-python and Kivy
ffmpeg
videocapture
cv2
406
views
no
answers
no
votes
2020-09-29 04:31:43 -0600
nic_olas
Detecting Charuco with low contrast and few pixels in big picture.
charuco
aruco
346
views
no
answers
no
votes
2020-09-29 04:13:09 -0600
Ricki Hutagaol
how to create an image box in python using tkinter
opencv
python
299
views
no
answers
no
votes
2020-09-29 02:47:58 -0600
yaor42
unwrapPhaseMap() does not take ndarray in Python
python
phase
unwrapping
211
views
no
answers
no
votes
2020-09-28 20:20:07 -0600
nabatta
Drone Localization with IR Beacons?
localization
drone
infrared
ir
1k
views
no
answers
no
votes
2020-09-28 11:52:06 -0600
kebwi
VFR: obtain FR/duration/timestamp of a given frame?
vfr
variable
framerate
frame
rate
1k
views
no
answers
no
votes
2020-09-28 07:23:22 -0600
sarslan
Using Gstreamer Pipeline in openCV, Why my pipeline works when I add videoconvert element before appsink ?
gstreamer
nv12
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