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
12,357 questions
Tagged
1k
views
no
answers
no
votes
2012-12-14 06:18:59 -0600
mrgloom
difference between convolution and correlation?
covolution
correlation
378
views
no
answers
no
votes
2016-03-09 02:51:13 -0600
Sriram Kumar
Is Grid a dense optical flow
FarnebackOpticalFlow
opticalflow
lucaskanade
257
views
no
answers
no
votes
2015-06-09 12:57:41 -0600
songtzu
compile failed 2.4.10 on ubuntu 14.04
compile
failed
156
views
no
answers
no
votes
2016-11-16 20:16:33 -0600
hbklenin
Node js error OpenCV in Ubuntu
node
js
error
401
views
no
answers
no
votes
2017-11-19 20:32:30 -0600
Ezkargon
Detecting the base of the triangle
image-processing
machinelearning
opencv
python
shape-detection
7k
views
no
answers
no
votes
2019-05-31 08:02:10 -0600
supra56
Do different png compression rates result in different images?
imwrite
compression
PNG_COMPRESSION
1k
views
no
answers
no
votes
2016-12-16 00:37:02 -0600
SuperMan
error when build opencv3.1 with contrib
opencv_contirb
1k
views
no
answers
no
votes
2016-06-22 01:51:58 -0600
balu
Java and haarcascade face and mouth detection - mouth as the nose
java
opencv
haartraning
haarcascade_smile
1k
views
no
answers
no
votes
2017-09-12 21:27:42 -0600
yode
How to do a perspectiveTransform when I don't know the matrix
perspectiveTrans
1k
views
no
answers
1
vote
2019-04-09 11:35:40 -0600
kzuiderveld
Consider adopting OpenCV - need memory pools/custom allocator
allocator
memory
pool
cache
blocking
867
views
no
answers
no
votes
2020-06-01 13:21:55 -0600
NicolasD
Install OpenCV for Fedora 32 Python
fedora
installation
python3
559
views
no
answers
no
votes
2016-04-19 00:26:15 -0600
annmelody
Canny dynamic threshold
matchshape
FindContour
matching
threshold
canny
296
views
no
answers
no
votes
2019-06-26 13:56:46 -0600
Darkhunter9
Number of bins in histogram after apply CLAHE from cv2 in python
CLAHE
2k
views
no
answers
no
votes
2019-04-23 00:23:35 -0600
pedro_bb7
Exactly which opencv version and python version should I use?
pip
opencv4.0
192
views
no
answers
no
votes
2016-10-10 01:31:15 -0600
astronaut
Detect not regular rectangular object does not work correct
c++
902
views
no
answers
1
vote
2015-06-25 07:19:44 -0600
Dr. Console
std::bad_alloc in traincascade
std
bad_alloc
opencv_traincascade
171
views
no
answers
no
votes
2015-12-31 14:41:47 -0600
Red Viper
opencv train cascade in less than 2 hours
traincascade
745
views
no
answers
no
votes
2015-09-04 15:03:22 -0600
LBerger
Implementation of rgb2xyz in opencv using c++
opencv
Matlab
c++
679
views
no
answers
no
votes
2015-08-21 15:47:37 -0600
Precious Roy
Train cascade classifier train error
train
cascade
classifier
1k
views
no
answers
no
votes
2014-09-07 16:33:03 -0600
Renan
Bug in created video with cv2.VideoWriter (Python 2.7)
python
2.4.9
cv2.VideoWriter
333
views
no
answers
no
votes
2016-02-01 03:42:17 -0600
leni
Image Comparison in IOS
ios
opencv
1k
views
no
answers
1
vote
2015-05-12 02:39:57 -0600
dyezepchik
Fisheye undistortion with python error
fisheye
CV_32FC3
CV_64FC3
python
1k
views
no
answers
no
votes
2017-11-29 12:20:30 -0600
Dayanand
Error while playing stored Video using OpenCV + Python
Undistorting
fisheye
Video
206
views
no
answers
no
votes
2016-07-31 09:08:22 -0600
sengsational
Rough outline for grocery shopping Android app
android
feature-detection
Haar
object_recognition
285
views
no
answers
no
votes
2015-07-21 22:59:13 -0600
Anna Lucia
Heap corruption using opencv3.0
heap
corruption
Opencv3.0
2k
views
no
answers
2
votes
2015-10-02 04:31:50 -0600
user21
Create features index (image database) and search (Python)
flann
index
database
search
271
views
no
answers
no
votes
2015-06-22 09:27:50 -0600
learningOpenCV
camera stereo calibration images
stereo
Images
calibration
487
views
no
answers
1
vote
2014-10-08 13:32:15 -0600
Doombot
Porting OpenCV 2.4.X code to 3.X
#Opencv3.0
porting
#opencv2.4.9
181
views
no
answers
no
votes
2020-04-04 04:40:51 -0600
Humam Helfawi
Stable Translation from essential decomposition
SLAM
369
views
no
answers
no
votes
2017-07-23 14:24:37 -0600
Ned1983
Simple 2d Ransac points filtring (iOS)
RANSAC
ios
2d
« previous
1
2
3
4
5
...
412
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
opencv
×4
python
×3
c++
×2
fisheye
×2
ios
×2
2.4.9
×1
2d
×1
allocator
×1
android
×1
bad_alloc
×1
blocking
×1
cache
×1
calibration
×1
canny
×1
cascade
×1
CLAHE
×1
classifier
×1
compile
×1
compression
×1
correlation
×1
corruption
×1
covolution
×1
cv2.VideoWriter
×1
CV_32FC3
×1
CV_64FC3
×1
database
×1
error
×1
failed
×1
FarnebackOpticalFlow
×1
feature-detection
×1
fedora
×1
FindContour
×1
flann
×1
Haar
×1
haarcascade_smile
×1
haartraning
×1
heap
×1
image-processing
×1
Images
×1
imwrite
×1
index
×1
installation
×1
java
×1
js
×1
lucaskanade
×1
machinelearning
×1
matching
×1
matchshape
×1
Matlab
×1
memory
×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
×