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29,830 questions
Tagged
180
views
no
answers
no
votes
2019-12-12 20:59:20 -0600
HelloWorld
How to use DescriptorMatcher to get matching images? [closed]
flann
3k
views
1
answer
no
votes
2019-12-12 14:52:08 -0600
LBerger
Writing raw video using VideoWriter
VideoWriter_fourcc
raw
228
views
1
answer
no
votes
2019-12-12 20:08:55 -0600
arafat
How to combine two descriptors result
descriptors
calcHist
LBP
735
views
1
answer
no
votes
2019-12-13 13:47:55 -0600
supra56
I am trying to run yolo in opencv using darknet on cpu code works fine but not getting camera displayed.[Solved]
opencv
python
CaptureVideo
Video
1k
views
no
answers
no
votes
2019-12-13 04:28:44 -0600
KingDav33
Cannot load my custom Tensorflow-Model into cv:dnn::readNetFromTensorflow
tensorflow
inference
frozen_model
optimize
163
views
no
answers
no
votes
2019-12-13 04:28:48 -0600
CNieberding
How to install OpenCV 32bit on Win64 machine
win32
installation
c++
opencv
1k
views
2
answers
no
votes
2019-12-13 14:45:56 -0600
supra56
Traceback (most recent call last): File "./Documents/S.py", line 36, in <module> roi_gray, NameError: name 'roi_gray' is not defined
opencv
python
86
views
no
answers
no
votes
2019-12-13 13:49:30 -0600
amigo421
FaceRecognizer - prediction value [closed]
facerecognize
992
views
no
answers
no
votes
2019-12-14 06:29:08 -0600
rsvp
Camera calibration estimates incorrect field of view
calibration
camera-field-of-view
fov
691
views
1
answer
no
votes
2019-12-14 13:18:35 -0600
mvuori
How to overexpose an image
Exposure
image
imageprocessing
154
views
1
answer
no
votes
2019-12-15 00:52:15 -0600
essamzaky
Missing region when used findcontours
findContours
1k
views
no
answers
no
votes
2019-12-14 23:00:24 -0600
Gourav
unable to use cv2.imread(cv2.samples.findfile("lena.jpg")) in opencv
pycharm
opencv
samples
opencvLoadImage
8k
views
1
answer
no
votes
2019-12-17 01:35:22 -0600
arafat
No module named 'cv2'
python
opencv
install
cv2
4k
views
no
answers
no
votes
2019-12-15 08:02:14 -0600
abcdcadb
trouble with imdecode: always returns none. Why?
python
207
views
no
answers
no
votes
2019-12-15 21:37:09 -0600
Avadhoot05
Mass center of contour is showing incorrectly in opencv java
android
opencv
max
android4.3
java
337
views
no
answers
no
votes
2020-01-03 06:57:56 -0600
supra56
Video file length is 3 times lesser than the original video based on the resolution [closed]
opencvsharp
and.Net
C#+openCV
573
views
no
answers
no
votes
2019-12-16 12:21:55 -0600
michlvl
Build H-value histogram of HSV image: wrong parameters?
HSV
histogram
colorselection
150
views
no
answers
no
votes
2019-12-16 11:25:16 -0600
Jiangnan Cai
how to get an edge from the unconnected points?
edge
edgedetection
208
views
no
answers
no
votes
2019-12-17 00:58:45 -0600
arafat
late fusion over color and texture descriptors
opencv
python
788
views
no
answers
no
votes
2019-12-17 01:40:14 -0600
esteban.da
Error building opencv with sfm module
opencv_sfm
SfM
build
glog
1k
views
no
answers
no
votes
2019-12-17 04:43:25 -0600
HelloWorld
CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set. [closed]
cmake
android
2k
views
1
answer
no
votes
2019-12-17 07:59:08 -0600
kbarni
How to remove the element attached to the image border?
copencv
imageprocessing
clearborder
1k
views
no
answers
no
votes
2019-12-17 06:49:27 -0600
AlexB
Should I use `pkg-config --libs opencv4` or `pkg-config --libs opencv`?
compilation
compile
gcc
c-compiler
461
views
no
answers
no
votes
2019-12-17 10:21:25 -0600
UU_KK
Opencv 3.4.8 + Opencv contrib 3.4.8 + mingw32-make + ERROR while compiling(libopencv_hdf348.dll))
Windows10
opencv3.4.8
make
error
hdf
contrib
3k
views
no
answers
no
votes
2019-12-17 20:33:22 -0600
ChanKim
ubuntu 16.04, "VIDEOIO(V4L2:/dev/video0): can't open camera by index" after software update
camera
218
views
no
answers
no
votes
2019-12-17 21:43:08 -0600
sid311
How to specify IPP version with CMake for versions 4.1.2/4.2.0?
IPP
lippicv
130
views
1
answer
no
votes
2019-12-18 01:22:40 -0600
mvuori
cv::Mat_ compiling error
VC15
Mat_
35k
views
no
answers
no
votes
2019-12-17 23:27:22 -0600
clefrks
error: (-215:Assertion failed) !_img.empty() in function 'imwrite [closed]
opencv
ffmpeg
Library
linux
79
views
no
answers
no
votes
2019-12-18 02:03:35 -0600
tsameema
Error in backgroundSubtractorMOG_
backgroundMOG
Matlab
444
views
no
answers
no
votes
2019-12-18 08:39:29 -0600
supra56
Kalman filter predict both velocity and position
KalmanFilter
velocity
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