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
194
views
no
answers
no
votes
2019-09-07 07:43:46 -0600
[email protected]
Hardware for opencv
opencv
1k
views
no
answers
no
votes
2019-09-07 04:11:53 -0600
fogx
Panning image window programmatically [closed]
opencv#python
591
views
no
answers
no
votes
2019-09-07 01:09:50 -0600
MHZ
Pattern recognition
python
opencv
405
views
no
answers
no
votes
2019-09-07 00:44:31 -0600
PR
error: undefined reference to 'cv::CascadeClassifier::detectMultiScale(cv::_InputArray const&, std::__ndk1::vector<cv::Rect_<int>, std::__ndk1::allocator<cv::Rect_<int> > >&, double, int, int, cv::Size_<int>, cv::Size_<int>)'
CascadeClassifier111
13k
views
2
answers
no
votes
2019-09-06 17:42:13 -0600
Mohamed Shehabeldin
convert Mat image into 2d Matrix double
opencv
2k
views
1
answer
no
votes
2019-09-06 16:28:34 -0600
Witek
OpenCVSharp - Object detection and tracking [closed]
objectdetection
objectrecognition
camera
155
views
no
answers
no
votes
2019-09-05 13:49:38 -0600
tantony
New to OpenCV and Python
opencv
python
165
views
no
answers
no
votes
2019-09-05 13:41:55 -0600
vito95
how does opencv handle rectangles feature of haar cascade classifier?
haarcascade.xml
haarcascade
cvHaarCascadeClass
haarcascades
1k
views
no
answers
no
votes
2019-09-05 12:49:07 -0600
zkumar
Error in reading onnx model (python)
dnn#opencv
14k
views
no
answers
1
vote
2019-09-05 12:06:06 -0600
Tina J
libopencv_core.so.3.1: cannot open shared object file: No such file or directory
opencv
libopencv_core
78
views
no
answers
no
votes
2019-09-05 10:00:43 -0600
wangkaijiang
compile opencv4.1.1 and qt with mingw3.2 meet 'chmod' is not internal command
opencvqt
1k
views
no
answers
no
votes
2019-09-05 05:02:06 -0600
vladvin
error: (-215:Assertion failed) api != 0 in function 'getBackendName'
videocapture
python
ffmpeg
gstreamer
v4l2
406
views
no
answers
no
votes
2019-09-04 17:09:07 -0600
correia
triangulation points with projection matrix in stereorectify
stereo
stereorectify
3dreconstruction
5k
views
no
answers
1
vote
2019-09-04 16:23:31 -0600
Tina J
OpenCV: FOUR_CC tag is not supported
CV_FOURCC
CreateVideoWriter
196
views
no
answers
no
votes
2019-09-04 14:32:28 -0600
Varinder
How to measure the radius of a spherical object in OpenCV2?
MeasureSphere
151
views
no
answers
no
votes
2019-09-04 12:47:08 -0600
sturkmen
is there an unnecessary code repeat? [closed]
code_review
94
views
no
answers
no
votes
2019-09-04 08:52:17 -0600
cjacquel
_ITERATOR_DEBUG_LEVEl for OpenCV 4.1.1
Debug
1k
views
no
answers
no
votes
2019-09-04 08:09:08 -0600
Sunilvb
Python error for 4.1.0 - cv.imshow(winname, mat) not implemented
opncv4raspberry-pi
745
views
no
answers
no
votes
2019-09-04 05:20:29 -0600
TheImageWhisperer
How do i find points of interest (keypoints) in a specific region of image
opencv
383
views
no
answers
no
votes
2019-09-04 04:51:25 -0600
blockchainmen
Co-ordinate system followed in cv2.warpAffine()
image-warping
warpAffine
affine-transform
coordinates
233
views
no
answers
no
votes
2019-09-04 02:49:49 -0600
ymw
extract pixel values in images raw by raw c++ [closed]
extract
Pixels
as
rows
566
views
no
answers
no
votes
2019-09-03 20:23:21 -0600
Oliver Chen
Failed to get second frame from a CSI camera module
videocapture
815
views
no
answers
no
votes
2019-09-03 10:53:24 -0600
holger
Contrast Detection - Picking the right Font color [closed]
contrast
detection
754
views
2
answers
no
votes
2019-09-03 06:42:38 -0600
supra56
Hi I'm using this code in pycharm and I have this error.please help me
python
161
views
no
answers
1
vote
2019-09-03 05:53:21 -0600
LiorA
Publish Android openCV Tutorial
android
5k
views
no
answers
no
votes
2019-09-03 05:03:55 -0600
lars27
ORB detector Segmentation Fault - Python [closed]
python
ORB
featuredetector
Keypoints
segmentation_fault
core_dumped
206
views
no
answers
no
votes
2019-09-03 04:15:44 -0600
berak
Opencv4.1.1 build error
build-error
xfeatures2d.hpp
91
views
no
answers
no
votes
2019-09-03 03:08:39 -0600
cjacquel
Interior contours
FindContour
152
views
no
answers
no
votes
2019-09-03 03:06:57 -0600
cjacquel
pyrSegmentation now ?
pyrsegmentation
372
views
no
answers
no
votes
2019-09-03 02:54:25 -0600
TheImageWhisperer
How do i convert RGB to HSV255 (color not image)
opencv#python
HSV
RGB2HSV
« previous
1
...
94
95
96
97
98
...
995
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×6
python
×5
opencv#python
×2
videocapture
×2
3dreconstruction
×1
affine-transform
×1
android
×1
as
×1
build-error
×1
camera
×1
CascadeClassifier111
×1
code_review
×1
contrast
×1
coordinates
×1
core_dumped
×1
CreateVideoWriter
×1
CV_FOURCC
×1
cvHaarCascadeClass
×1
Debug
×1
detection
×1
dnn#opencv
×1
extract
×1
featuredetector
×1
ffmpeg
×1
FindContour
×1
gstreamer
×1
haarcascade
×1
haarcascades
×1
haarcascade.xml
×1
HSV
×1
image-warping
×1
Keypoints
×1
libopencv_core
×1
MeasureSphere
×1
objectdetection
×1
objectrecognition
×1
opencvqt
×1
opncv4raspberry-pi
×1
ORB
×1
Pixels
×1
pyrsegmentation
×1
RGB2HSV
×1
rows
×1
segmentation_fault
×1
stereo
×1
stereorectify
×1
v4l2
×1
warpAffine
×1
xfeatures2d.hpp
×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
×