First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date
activity ▼
answers
votes
30,555 questions
Tagged
8
views
no
answers
no
votes
2020-11-23 08:39:40 -0500
berak
here when i use the videoCapture() by my phone, it cannot capture the largest contour
CaptureVideo
11
views
no
answers
no
votes
2020-11-23 05:49:59 -0500
smitra
Perspective warping using QR codes as anchors in the image
cv2.warpPerspective
qrcode
8
views
no
answers
no
votes
2020-11-23 05:31:46 -0500
Ahmed
Cut faraway objects based on depth map
c#
11
views
no
answers
no
votes
2020-11-23 04:37:45 -0500
Antrac1t
reading CPU data
OCR
neural_network
11
views
no
answers
no
votes
2020-11-23 02:49:36 -0500
genzy9
Demosaicing c++
demosaicing
debayer
32
views
no
answers
no
votes
2020-11-22 20:03:37 -0500
sunitha premjee
Didn't find class "android.view.JavaCameraView" on path: DexPathList[[zip file "==/base.apk"],nativeLibraryDirectories=[==/lib/arm64, ==/base.apk!/lib/arm64-v8a, /system/lib64]]
android
opencv
22
views
no
answers
no
votes
2020-11-22 10:53:01 -0500
Joanne
dnn with custom layer: Assertion failed !empty() in function 'forward'
dnn
layer
empty
dnn.forward
18
views
no
answers
no
votes
2020-11-22 09:17:03 -0500
sachet12345
Merging lines given end points
linesegmentdetector
27
views
no
answers
no
votes
2020-11-21 15:35:02 -0500
Ghetto82
RaspberryPI & OpenCV + Yolo: AttributeError: module 'cv2' has no attribute 'dnn'
RaspberryPi
yolo
opencv
dnn
objectdetection
25
views
2
answers
no
votes
2020-11-21 14:40:50 -0500
berak
Use Opencl to access Umat data
opencl
UMat
70
views
no
answers
-2
votes
2020-11-21 14:28:23 -0500
berak
cv2.error: OpenCV(4.4.0)error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor', 14errors module cv2
cv2
python
assertionerror
facial_expression
33
views
1
answer
no
votes
2020-11-21 10:03:42 -0500
berak
Can I use OpenCV Android for commercial sales [2020]?
android
Licence
commercial
24
views
1
answer
-1
votes
2020-11-21 09:49:33 -0500
berak
Hello, I am working on the image face recognition project. I am getting error as follows. Please guide.
assertion_failed
20
views
no
answers
no
votes
2020-11-21 04:35:54 -0500
kani
How to draw contour for a document in OpenCV.js?
javascript
contours
drawContours
18
views
1
answer
no
votes
2020-11-21 02:13:53 -0500
berak
Result of My Cascade Training is Bad
opencv#traincascade
23
views
1
answer
no
votes
2020-11-20 18:53:46 -0500
sjhalayka
About Using OpenCV in Unreal Engine 4 [closed]
hololens
image-recognition
image-data
augmentedReality
unreal
Pattern_recognition
28
views
no
answers
no
votes
2020-11-20 09:26:15 -0500
Peppe
How to fix error: unrecognized command-line option ‘--param=ipcp-unit-growth=100000’
RaspberryPi
ubuntu
81
views
no
answers
-2
votes
2020-11-20 02:14:39 -0500
kilwa
calculating the area dimension in image
python#opencv
564
views
4
answers
no
votes
2020-11-20 01:41:09 -0500
dkurt
Android OpenCV + camera is just showing black screen
android
opencv
camera
465
views
1
answer
no
votes
2020-11-19 20:23:12 -0500
crackwitz
How to calculate Optical Flow magnitude?
opticalflow
python
calcOpticalFlow
27
views
1
answer
no
votes
2020-11-19 20:13:19 -0500
crackwitz
Is there a way to select a specific web cam from USB hub on a Mac or Windows?
multi-camera
camera
38
views
2
answers
no
votes
2020-11-19 20:07:38 -0500
crackwitz
How to Darken Faint/Dim Gray Text
grayText
darkerText
darkenText
ScannedDoc
32
views
1
answer
no
votes
2020-11-19 16:58:13 -0500
crackwitz
Blockwise PCA & Sobel seem to be way off for ridge angle detection
finger
fingertip
sobel
ridge
29
views
1
answer
no
votes
2020-11-19 16:49:29 -0500
crackwitz
I do downhole test using CCTV. Is there any open codes of the OpenCV I can use for a digital image stitching?
image
stitching
downhole
19
views
no
answers
-1
votes
2020-11-19 12:50:56 -0500
Handa
Creating a region of interest in java
java
regionofinterest
30
views
no
answers
no
votes
2020-11-19 12:00:05 -0500
carl.frederick@2k.com
problem trying to install opencv-contrib-python
install
failure
41
views
no
answers
no
votes
2020-11-19 06:55:04 -0500
supra56
How to eliminate Text underline?
grayText
darkerText
darkenText
ScannedDoc
43
views
1
answer
no
votes
2020-11-19 03:08:11 -0500
marius
opencv 4.5.0 cvDiv/cvMat equivalent ?
android
16
views
no
answers
no
votes
2020-11-19 02:15:59 -0500
ARYL518
Use build_sdk.py to build opencv4 for android on Windows
android
22
views
no
answers
no
votes
2020-11-19 01:09:02 -0500
Ahmed
Is that an occlusion depth research problem?
opencv
1
2
3
4
5
...
1019
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
android
×5
opencv
×4
camera
×2
darkenText
×2
darkerText
×2
dnn
×2
grayText
×2
python
×2
RaspberryPi
×2
ScannedDoc
×2
assertionerror
×1
assertion_failed
×1
augmentedReality
×1
c#
×1
calcOpticalFlow
×1
CaptureVideo
×1
commercial
×1
contours
×1
cv2
×1
cv2.warpPerspective
×1
debayer
×1
demosaicing
×1
dnn.forward
×1
downhole
×1
drawContours
×1
empty
×1
facial_expression
×1
failure
×1
finger
×1
fingertip
×1
hololens
×1
image
×1
image-data
×1
image-recognition
×1
install
×1
java
×1
javascript
×1
layer
×1
Licence
×1
linesegmentdetector
×1
multi-camera
×1
neural_network
×1
objectdetection
×1
OCR
×1
opencl
×1
opencv#traincascade
×1
opticalflow
×1
Pattern_recognition
×1
python#opencv
×1
qrcode
×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
×
