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 »
relevance
date
activity
answers ▼
votes
316 questions
Tagged
1k
views
2
answers
2
votes
2013-05-26 09:40:23 -0600
Qichao Chen
When I run the following code, I get the error
BackgroundSubtractor
4k
views
2
answers
1
vote
2016-04-14 02:51:57 -0600
pklab
Detection of stones (rocks) on field surface
stones
rocks
robot
field
detection
saturation
12k
views
2
answers
no
votes
2013-03-14 11:22:10 -0600
Guanta
Result issues with findContours
findContours
drawContours
5k
views
1
answer
no
votes
2015-02-16 03:11:03 -0600
berak
Detecting multiple squares within a square and extracting their coordinates
square
kinect
804
views
1
answer
2
votes
2015-01-27 06:43:28 -0600
Pedro Batista
Contours. What are those really?
contours
2k
views
1
answer
1
vote
2017-04-09 16:17:04 -0600
sturkmen
Opencv error: Assertation failed when findContours is used
openCV#VS2015
16k
views
1
answer
2
votes
2016-05-29 12:24:18 -0600
LBerger
How to find the rotated angle of object
homography
Noteworthy_Content
2k
views
1
answer
no
votes
2017-03-20 03:26:59 -0600
Balaji R
Android + OpenCV - Finding extreme points in contours
android
java
opencv
substractor
contours
1k
views
1
answer
no
votes
2014-09-11 04:35:40 -0600
coco
Help me to track the mistake for measuring angles in opencv
#opencv
#videocapture
Angle
2k
views
1
answer
1
vote
2016-01-23 05:57:54 -0600
sturkmen
Problem in thresholding of a part of image
opencv
Thresholding
python
cv2
image-processing
945
views
1
answer
no
votes
2019-11-23 02:05:43 -0600
Akhil Patel
Canny Edge Detector doesn't return filtered image
canny
1k
views
1
answer
-2
votes
2018-03-14 11:15:38 -0600
phillity
Equivalent OpenCV Java Code to this C++ Code
javaopencv
c++
imageoverlay
displacement-mapping
drawcontour
3k
views
1
answer
no
votes
2013-12-10 03:56:20 -0600
akoo
how to select a specific bounding box
boundingBox
1k
views
1
answer
1
vote
2015-07-01 11:15:52 -0600
sturkmen
Cascade Classifier HAAR / LBP Advice
Haar
python
opencv
3k
views
1
answer
1
vote
2017-09-07 12:42:02 -0600
sturkmen
How to delete those border component
connectedComponents
floodfill
findContours
4k
views
1
answer
2
votes
2020-06-29 08:10:08 -0600
sturkmen
Merge contour from vector<Points>
contours
points
4k
views
1
answer
-1
votes
2014-10-19 12:35:33 -0600
FLY
How to find small circle/hole in image?
pinhole
256
views
1
answer
no
votes
2020-02-11 20:21:08 -0600
supra56
Object localization program crashing at approxPolyDP function[SOLVED]
opencv
approxPolyDP
5k
views
1
answer
1
vote
2015-03-02 09:08:53 -0600
theodore
Implementation Question: How to create bounding boxes around answers on worksheets
implementation
deskewing
standardizing
Noteworthy_Content
2k
views
1
answer
2
votes
2017-02-19 13:39:41 -0600
LBerger
Editing/Understanging FindContours Points
drawContours
point
findContours
1k
views
1
answer
no
votes
2016-06-02 09:26:27 -0600
sturkmen
OpenCV4Android - Resize a Contour but retain center?
android
opencv
erode
distanceTransform
resize
264
views
1
answer
no
votes
2016-03-02 06:04:58 -0600
berak
Debug assertion fail when using grayscale
opencv
1k
views
1
answer
no
votes
2018-08-26 08:24:44 -0600
matman
FindContours Duplicate Points
findContours
drawContours
2k
views
1
answer
4
votes
2015-02-25 15:08:13 -0600
theodore
Detach two blob
c++
blob
BlobAnalysis
connectedComponents
Binarization
1k
views
1
answer
no
votes
2015-11-20 02:44:50 -0600
pklab
how can I draw a vertical line down the middle of a rectangular?
opencv
c++
2k
views
1
answer
no
votes
2015-07-28 03:18:02 -0600
StevenPuttemans
Find center and radius of fisheye image
fisheye
2k
views
1
answer
-1
votes
2015-04-07 07:45:05 -0600
theodore
Detect not completed triangles
c++
opencv
detect
Complete
triangle
1k
views
1
answer
no
votes
2015-04-08 10:58:26 -0600
ClintFromVa
perspectiveTransform on contours?
perspectiveTransform
contours
3k
views
1
answer
no
votes
2016-04-07 06:22:23 -0600
StevenPuttemans
Label Contours
label
contours
510
views
1
answer
no
votes
2017-02-20 10:46:57 -0600
ginister
Mat reshape not reducing channel number
reshape
« previous
1
2
3
4
5
...
11
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×8
contours
×5
c++
×4
findContours
×4
drawContours
×3
android
×2
connectedComponents
×2
Noteworthy_Content
×2
python
×2
Angle
×1
approxPolyDP
×1
BackgroundSubtractor
×1
Binarization
×1
blob
×1
BlobAnalysis
×1
boundingBox
×1
canny
×1
Complete
×1
cv2
×1
deskewing
×1
detect
×1
detection
×1
displacement-mapping
×1
distanceTransform
×1
drawcontour
×1
erode
×1
fisheye
×1
floodfill
×1
Haar
×1
homography
×1
imageoverlay
×1
image-processing
×1
implementation
×1
java
×1
javaopencv
×1
kinect
×1
label
×1
#opencv
×1
openCV#VS2015
×1
perspectiveTransform
×1
pinhole
×1
point
×1
points
×1
reshape
×1
resize
×1
robot
×1
rocks
×1
saturation
×1
square
×1
standardizing
×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
×