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467 questions
Tagged
Mat
×
287
views
no
answers
no
votes
2019-08-12 09:36:25 -0600
berak
OpenCV mat.get(y,x)[0] == mat2.get(y,x)[0] returns true when false [closed]
java
Mat
opencv
get
compare
boolean
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
446
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
172
views
no
answers
no
votes
2019-07-22 04:14:34 -0600
ymw
Mat array[20] to unsigned short array
Mat
array
convert
unsigined
short
1k
views
1
answer
no
votes
2019-07-16 11:39:02 -0600
pgorley
Display raw 12 bpp grayscale image
Mat
c++
271
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
2019-07-04 07:34:41 -0600
berak
Printing Multi Dimension Mat using c++ in openCV
multi-dimension
Mat
print
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
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
300
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
1k
views
1
answer
1
vote
2019-06-13 23:51:29 -0600
berak
Java - Mat subtract returns all black image
java
Mat
Opencvcore
1k
views
1
answer
no
votes
2019-06-06 08:30:15 -0600
hua
How to pass the cv::Mat or cv::cuda::GpuMat to custom CUDA kernel?
Mat
CUDA
758
views
1
answer
no
votes
2019-06-05 12:22:58 -0600
Eduardo
C++ CV::Mat.at<float>(0) in Java
java
c++
Mat
779
views
1
answer
1
vote
2019-05-10 03:50:57 -0600
berak
Get pixel value of sobel Mat with C++
sobel
CvMat
Mat
pixel-access
c++
CvType
3k
views
no
answers
no
votes
2019-04-30 00:20:05 -0600
zebox
What is way correct for capture rtsp stream from IP Camera?
rtsp
Mat
2k
views
1
answer
no
votes
2019-04-24 04:21:40 -0600
berak
Copy smaller mat to part of bigger mat
android
Mat
1k
views
1
answer
no
votes
2019-04-23 07:36:42 -0600
berak
How to element-wise multiplication of Mat.
Mat
multiply
77
views
no
answers
no
votes
2019-04-22 05:02:14 -0600
berak
How to make Mat as new whenever the function called again? [closed]
clean
Mat
634
views
no
answers
no
votes
2019-04-05 20:54:10 -0600
opencvddddd
why does cv::VideoCapture >> cv::Mat take so long time?
c++#opencv
videowriter
profiler
TX2
Mat
307
views
1
answer
no
votes
2019-04-01 10:21:37 -0600
mdresser
Extract pixel value from Mat not working (for me)
Mat
element
pixel
access
at
282
views
no
answers
no
votes
2019-03-08 05:09:40 -0600
RPH
Wrap OpenCV Mat as numpyarray hangs ?
python
numpy
copyTo
CvMat
Mat
opencvpython
203
views
no
answers
no
votes
2019-02-07 19:17:32 -0600
kingbob
Merging window(viz3d and mat)
viz
Viz3d
merge
opencv
Mat
449
views
no
answers
no
votes
2019-01-31 06:46:10 -0600
bern_007
OpenCV Mat Java
java
opencv
Mat
499
views
no
answers
no
votes
2018-12-30 03:22:34 -0600
happy__
Access value with a pointer in Mat [closed]
Mat
2k
views
1
answer
2
votes
2018-12-27 11:43:54 -0600
iamsurya
How to Store a Mat data of Size (1920*1080) and Use it in another program?
efficiency
Mat
access
Noteworthy_Content
540
views
no
answers
no
votes
2018-11-17 09:04:11 -0600
viohh
subtraction of point2f vectors
c++
Mat
point2f
151
views
no
answers
no
votes
2018-11-15 14:06:46 -0600
Sartogersofortotropher
Rewrite old openCV code
IplImage
Mat
550
views
1
answer
1
vote
2018-11-07 02:26:43 -0600
berak
Loading multiple images from file to the same Mat?
imagesc
opencv
c++
Mat
579
views
2
answers
no
votes
2018-10-28 10:01:11 -0600
BALAKRISHANAN NAGARAJAN
How to concat Mat1's top half with Mat2's bottom half
vconcat
two
Mat
java
231
views
1
answer
no
votes
2018-10-25 01:30:02 -0600
berak
what is the most effective way to measure middle width of trapezoid? C++
c++
opencv
contours
measure
Mat
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