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35 questions

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71k
views
1
answer
5
votes
2014-07-23 00:45:52 -0600 user925

how to insert a small size image on to a big image

1k
views
1
answer
2
votes
2019-06-06 16:29:55 -0600 Witek flag of Poland

Replace subsection of Mat with another Mat.

558
views
1
answer
1
vote
2012-08-23 06:20:31 -0600 Michael Burdinov

Image shuffle not working

49k
views
1
answer
1
vote
2013-10-03 09:03:04 -0600 Michael Burdinov

copy part of a image Mat to another one

12k
views
1
answer
1
vote
2014-09-02 04:28:04 -0600 Balaji R flag of India

How to crop non rectangular area from Mat?

4k
views
2
answers
1
vote
2016-02-18 09:30:03 -0600 sturkmen flag of Turkey

copy even rows/cols to another Mat

1k
views
no
answers
1
vote
2015-09-16 09:46:48 -0600 iEng

Memory Leak in Mat::copyTo()

894
views
1
answer
1
vote
2015-10-27 10:09:20 -0600 frageDE flag of Germany

OpenCV: Masking Operation Does not Function Properly

23k
views
no
answers
1
vote
2015-10-30 07:37:09 -0600 Kåre Jensen

Memory leak using copyTo UMat

839
views
no
answers
1
vote
2016-12-10 10:57:12 -0600 Humam Helfawi

access violation in copyTo

279
views
no
answers
1
vote
2017-12-28 09:25:56 -0600 Boogaloo

TBB not being used for CMat memory copy, just IPP

882
views
1
answer
no
votes
2012-08-04 17:02:49 -0600 darKoram

copying a portion of a matrix to itself

1k
views
2
answers
no
votes
2013-06-09 14:09:30 -0600 user1446598

How to save only ROI pixels in a Mat using a binary mask?

4k
views
1
answer
no
votes
2014-08-20 07:02:29 -0600 Miro

copy small image in big image

1k
views
1
answer
no
votes
2015-07-27 11:18:16 -0600 MdK8

Issue Masking Input Image to findContours [closed]

1k
views
1
answer
no
votes
2016-02-17 13:39:39 -0600 dramaticlook

OpenCV 3.1 UMat assignment

282
views
no
answers
no
votes
2016-03-09 13:56:09 -0600 mask2007

Random forest - RTrees - getSplits - type mismatch

130
views
1
answer
no
votes
2016-06-04 09:38:03 -0600 mmkhan

Problem with copying a block of data

3k
views
no
answers
no
votes
2016-06-08 09:29:22 -0600 VanGog

Copy image using Rect() and copyTo()

1k
views
no
answers
no
votes
2016-10-22 11:54:16 -0600 Jishan

Crop Image Patch & Paste [closed]

638
views
1
answer
no
votes
2016-11-07 04:28:44 -0600 berak

Unexpected Results using CopyTo Rect with UMat

510
views
1
answer
no
votes
2016-12-16 10:40:03 -0600 LBerger

Copy Multidimensional Matrix

3k
views
1
answer
no
votes
2017-01-16 01:47:21 -0600 LBerger

how is b=a.clone() different than a.copyTo(b)? which is faster?

237
views
1
answer
no
votes
2017-11-08 01:40:15 -0600 Andriezel

copyTo() works only the first time

1k
views
no
answers
no
votes
2018-01-27 07:41:37 -0600 alex001

Extra delay when copying UMat to Mat

4k
views
no
answers
no
votes
2018-01-29 06:25:51 -0600 Adam C

cv::Mat assignment or copy with guarantee that there is no reallocation

147
views
no
answers
no
votes
2018-03-17 15:52:46 -0600 cjacquel flag of France

Pb with CopyTo and GpuMat

2k
views
1
answer
no
votes
2018-09-21 10:10:17 -0600 berak

Copy Mat at Contour/Mask into another Mat.

283
views
no
answers
no
votes
2019-03-08 05:09:40 -0600 RPH

Wrap OpenCV Mat as numpyarray hangs ?

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