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467 questions
Tagged
Mat
×
1k
views
1
answer
no
votes
2020-09-10 02:08:23 -0600
berak
How to create 4D mat, like dnn::blobFromImage do?
4D
Mat
blobfromImage
190
views
no
answers
no
votes
2020-09-25 05:34:38 -0600
Supreeth Kumar Y P
How to update UMat when Mat is updated?
c++
opencv
Mat
UMat
opencl
467
views
1
answer
no
votes
2020-10-15 09:47:17 -0600
crackwitz
cv::Mat::forEach() sliding window
Mat
forEach
246
views
no
answers
-1
votes
2013-02-07 07:59:44 -0600
Abhinav
How to print and verify that MatDescriptors are non-empty?? [closed]
feature
match
Mat
941
views
1
answer
-1
votes
2014-05-07 03:46:48 -0600
StevenPuttemans
Some small problems about OpenCV4Android haze removal
haze
removal
opencv4android
Mat
3k
views
1
answer
no
votes
2015-01-07 17:48:37 -0600
Victor Fernandes
Mat using YUV 422 Video
YCrCb
Mat
array
convert
YUV
422
450
views
no
answers
no
votes
2016-08-17 09:02:02 -0600
orpheelepoete
access violation while filling a Mat with custom uchar* data [closed]
access-violation
Mat
memcpy
uchar
1k
views
no
answers
-1
votes
2017-01-19 18:46:23 -0600
Aokiji
Java VideoCapture is Open, But Mat.read(frame) is Always false
videocapture
notreading
java
opencv
Mat
frames
599
views
1
answer
-1
votes
2017-10-11 11:30:29 -0600
berak
2D Array of Mat variables
2d
array
of
Mat
1k
views
1
answer
-1
votes
2017-12-07 13:58:40 -0600
berak
Mat Template Pointer is NULL
Mat
reserve
714
views
1
answer
-1
votes
2018-02-22 05:14:46 -0600
HebaKM
Displaying images from 1D double array
c++
Mat
double
134
views
no
answers
-1
votes
2018-03-07 04:42:35 -0600
AnanthaRaja
Proper Usage of Memcpy - Security Issue [closed]
memcpy
Mat
memcpy_s
875
views
1
answer
-1
votes
2018-07-07 09:47:48 -0600
ali hakimiyan
opencv mat.at<cv::Vec4b> convert to java
java
pixel-access
Mat
955
views
no
answers
-1
votes
2018-09-09 15:59:44 -0600
Aiyyaa
double free or corruption mistake [closed]
c++
Mat
301
views
1
answer
-1
votes
2019-06-24 17:23:54 -0600
Tetragramm
How hard is it to only extract specific class and functions?
c++
opencv
extraction
core
Mat
highgui
148
views
no
answers
no
votes
2019-07-03 22:48:49 -0600
charles
ERR “Assertion `img_input.empty() == false' failed” in convert YUV to Grayscale
bgslibrary
Mat
yuv422
1k
views
1
answer
-3
votes
2017-01-27 08:42:38 -0600
marsfan
mat newMat = new Mat() crashes android app [closed]
android
Mat
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