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467 questions
Tagged
Mat
×
1k
views
1
answer
1
vote
2019-06-13 23:51:29 -0600
berak
Java - Mat subtract returns all black image
java
Mat
Opencvcore
307
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
5k
views
1
answer
no
votes
2019-06-28 07:07:55 -0600
LBerger
OpenCV(4.1.0) Error: Assertion failed (((0x28442211 >> ((traits::Depth<_Tp>::value) & ((1 << 3) - 1))*4) & 15) == elemSize1()) in cv::Mat::at, file c:\opencv\build\include\opencv2\core\mat.inl.hpp, line 1145
assertionerror
Mat
1k
views
1
answer
no
votes
2019-07-04 07:34:41 -0600
berak
Printing Multi Dimension Mat using c++ in openCV
multi-dimension
Mat
print
1k
views
1
answer
no
votes
2019-07-16 11:39:02 -0600
pgorley
Display raw 12 bpp grayscale image
Mat
c++
276
views
1
answer
no
votes
2019-07-15 21:46:59 -0600
supra56
Is there a way to display cv::Mat using __android_log_print()[SOLVED]
c++
android
printf
Mat
1k
views
1
answer
no
votes
2020-01-27 11:00:14 -0600
h22
How to convert cv::Mat* to cv::Mat?
Mat
opencv
c++
449
views
1
answer
no
votes
2019-07-25 04:15:24 -0600
vinio
OpenCV throws exception when calling Mat.put() with direct bytebuffer
Mat
ByteBuffer
CV_8UC3
java
227
views
1
answer
no
votes
2019-07-25 10:51:21 -0600
holger
newbie question: working with higher dimensional mat [closed]
dnn
Mat
dimensionality
1k
views
1
answer
no
votes
2019-11-11 05:13:18 -0600
berak
_queryDescriptors.type() == trainDescType [closed]
Mat
type
3k
views
1
answer
no
votes
2019-11-29 05:35:35 -0600
berak
Convert 3 channel Mat into 4 channel doesn't work?
conversion
Mat
mixing
355
views
1
answer
no
votes
2019-12-05 12:11:35 -0600
mvuori
Mat ctor produces heap error?!?
heap
error
Mat
c++
4k
views
1
answer
1
vote
2019-12-30 06:11:12 -0600
berak
Convert a 2D array to Mat (OpenCV) using C++, but the output of the Mat is wrong
c++
2d
array
Mat
constructor
394
views
1
answer
no
votes
2020-01-09 02:36:44 -0600
LBerger
pass mat to opencl
Mat
4k
views
1
answer
no
votes
2020-02-27 09:06:05 -0600
PressedTin
How do I get 0-255 RGB values from an RGBA mat?
android#studio
Mat
java
1k
views
1
answer
no
votes
2020-06-11 14:54:02 -0600
Der Luftmensch
Broadcast single channel to N-channels
Mat
broadcast
repeat
reduce
convert
449
views
1
answer
no
votes
2020-08-14 08:53:20 -0600
berak
mat.at() not returning correct values after setting labels with rowrange()
rowrange
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
482
views
1
answer
no
votes
2020-10-15 09:47:17 -0600
crackwitz
cv::Mat::forEach() sliding window
Mat
forEach
15k
views
2
answers
3
votes
2013-09-23 05:47:22 -0600
StevenPuttemans
How to convert cv::Mat to std::string?
Mat
string
conversion
persistence
FileStorage
20k
views
2
answers
3
votes
2012-07-12 22:40:21 -0600
Niu ZhiHeng
How to add 2 Mat objects of different type?
c++
Mat
65k
views
2
answers
1
vote
2012-08-29 16:38:15 -0600
imran
Find pixel color out of cv::Mat on specific position
Mat
488
views
2
answers
5
votes
2012-09-13 05:09:27 -0600
Michael Burdinov
Can I perform nested operations with the Mat object?
Mat
10k
views
2
answers
3
votes
2013-03-11 05:53:09 -0600
Andrey Pavlenko
Convert Mat to MatOfByte in Android
android
convert
Mat
3k
views
2
answers
3
votes
2013-10-18 06:35:48 -0600
Antonio
How can I specify row alignment reading an image or creating Mat object?
Mat
row
alignment
78k
views
2
answers
7
votes
2012-10-31 21:29:11 -0600
unxnut
subtract from white - invert
algebra
Mat
invert
6k
views
2
answers
no
votes
2014-03-14 07:45:46 -0600
Alexander Smorkalov
Initializing static cv::Mat with cv::Mat::zeros causes segmentation fault
Mat
zeros
seg-fault
static
Initialization
79k
views
2
answers
3
votes
2012-11-21 20:11:39 -0600
Martin Peris
How to create a binary image mat?
Mat
binary
threshold
grayscale
conversion
4k
views
2
answers
no
votes
2013-02-08 09:54:58 -0600
Andrey Pavlenko
Android: Mat converting to CV_8U
Mat
android
cascadeclassifier
matToBitmap
convert
3k
views
2
answers
no
votes
2013-02-16 13:42:33 -0600
camadrigal
[C++] OpenCV2.4.3, cv::resize produces empty image
opencv
resize
Mat
image
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