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33,257 questions
Tagged
no
views
no
answers
no
votes
2020-09-27 16:23:44 -0500
squenix008
Callback parameters not being updated
setMouseCallback
23
views
1
answer
no
votes
2020-09-27 09:11:36 -0500
Chris
How to color the pixels in an image depending on whether they are inside/outside a zone/circle?
python
image
image-processing
mask
cv2
circle
14
views
2
answers
2
votes
2020-09-27 05:39:55 -0500
sturkmen
try to read different frame by videocapture but failed
videocapture
33
views
1
answer
1
vote
2020-09-26 19:26:00 -0500
greggaz
Cannot decode server-sent uchar vector on client side: Empty Mat results.
socket
imencode
imdecode
uchar
receive
send
61
views
no
answers
1
vote
2020-09-26 17:19:59 -0500
sturkmen
deletion of useless posts
forum
30
views
1
answer
no
votes
2020-09-25 22:55:15 -0500
yoshihiko
How to convert stereo camera distances, pixels to mm [closed]
stereocamera
2k
views
1
answer
4
votes
2020-09-25 19:46:18 -0500
tjwmmd2
Fastest way to convert BGR <-> RGB! Aka: Do NOT use Numpy magic "tricks".
python
numpy
conversion
17
views
no
answers
no
votes
2020-09-25 16:54:52 -0500
queisser
Calibration grid larger than FOV - which method?
calibration
66
views
no
answers
no
votes
2020-09-25 11:30:43 -0500
Vishwanath Garrepalli
Hi I have started working in ML and CV field recently. I want to participate in GSoC 2021. Can someone please guide and suggest me what I should do for contributing.
GSOC2021
opencv
19
views
no
answers
no
votes
2020-09-25 09:20:12 -0500
Leonardo_ads
imencode not working with ".jpg" extension (Access violation reading location)
imencode
25
views
no
answers
no
votes
2020-09-25 09:05:59 -0500
jast_r
Preform separation and image segmentation
c++
opencv
segmentation
defectdetection
16
views
no
answers
no
votes
2020-09-25 08:36:25 -0500
Pawan29
What is the length of the tape/strip from the image?
opencv
and
python
60
views
1
answer
-1
votes
2020-09-25 07:49:08 -0500
Supreeth Kumar Y P
Disable file system cache during imwrite [closed]
c++
cache
linux
imread
16
views
no
answers
no
votes
2020-09-25 07:44:35 -0500
Supreeth Kumar Y P
How to Apply warpPerspective only for part of Image?
warpprespective
c++
image-warping
roi
381
views
2
answers
no
votes
2020-09-25 05:36:01 -0500
Shassk
How to separate objects wich have the same color
objectdetection
8
views
no
answers
no
votes
2020-09-25 05:34:38 -0500
Supreeth Kumar Y P
How to update UMat when Mat is updated?
c++
opencv
Mat
UMat
opencl
11
views
no
answers
no
votes
2020-09-25 05:21:10 -0500
Shassk
Determine new coordinates of pixel after calibration + remap
calibration
14
views
no
answers
no
votes
2020-09-25 02:54:32 -0500
wil-den
peculiar docker problem
opencv-python
docker
error
strange
110
views
1
answer
1
vote
2020-09-24 15:46:36 -0500
archimedium
warpPerspective() to a different origin [SOLVED]
geometric-transform
47
views
1
answer
no
votes
2020-09-24 14:05:44 -0500
sturkmen
Detect objects even though they touch the border of an image
opencv#python
17
views
no
answers
no
votes
2020-09-24 13:01:09 -0500
Mark S
ArUco Thresholding Window Size
aruco
adaptiveThreshold
threshold
74
views
no
answers
no
votes
2020-09-24 11:27:38 -0500
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
24
views
1
answer
no
votes
2020-09-24 10:44:53 -0500
berak
how to solve (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::detectMultiScale'
opencv
python
25
views
no
answers
no
votes
2020-09-24 10:30:56 -0500
kilwa
how can i draw a contours in specific region
opencv
python
11
views
no
answers
no
votes
2020-09-24 07:37:13 -0500
Maxime
Why imread is reallocating data buffer
imread
c++
pointers
11
views
no
answers
no
votes
2020-09-24 05:42:44 -0500
Den
Opencv.js - findPerspective returns wrong corners coordinates
js
opencv-js
OpenCV.js
30
views
1
answer
no
votes
2020-09-24 05:12:14 -0500
mvuori
cv:imwrite Python error with Windows: can't open file for writing: permission denied
python3
windows
imwrite
opencv
14
views
no
answers
no
votes
2020-09-24 02:23:29 -0500
aliakseis
Measuring of lanes or stripes on noisy and underexposed images
opencv
computer-vision
image-recognition
12
views
no
answers
no
votes
2020-09-24 01:19:44 -0500
aiubian
What's the pseudocode or algorithm inside solvePnP's SOLVEPNP_ITERATIVE flag?
solvePnP
Levenberg-Marquardt
SOLVEPNP_ITERATIVE
27
views
no
answers
no
votes
2020-09-23 10:56:24 -0500
SherSoni
H265 Performance
H265
1
2
3
4
5
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1109
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