Questions - OpenCV Q&A Forum

218

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2018-04-12 03:15:41 -0600 berak

How can access vector <cv::Mat> data by using ptr or data method?

788

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1

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2018-04-15 12:07:33 -0600 LBerger

Row and Col problem when Mat represents 3d point cloud

315

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2018-05-28 02:07:07 -0600 dEmz

cv::Mat make VS 2017 Freeze when hovered

Mat
c++

272

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1

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no

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2018-06-06 07:03:39 -0600 berak

can't find cv::ppf_match_3d::loadPLYSimple

405

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2018-06-14 02:26:41 -0600 iwga

XYZ Data to Mat

204

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2018-06-27 09:09:52 -0600 Benlag06

Communication between c++ and python

1k

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1

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2018-06-30 01:47:26 -0600 berak

how to new Mat

957

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1

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no

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2018-07-04 07:00:58 -0600 paatz04

Create a transparent Mat in Android

2k

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1

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2018-07-16 08:31:52 -0600 berak

How to do copy cv::Mat by pointer into tensor of type float?

109

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1

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2018-07-19 06:02:46 -0600 berak

Convert RGBTRIPLE to cv::Mat

740

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1

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no

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2018-07-23 07:03:32 -0600 StevenPuttemans

How to call imshow("", cv::Mat) from a function passed to void* ptr of trackbar callback?

881

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1

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no

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2018-08-01 12:44:32 -0600 berak

Efficient calculation with multiple cv::Mat

Mat

189

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2018-08-10 17:57:56 -0600 connorsoohoo

Download a vector of GpuMats to Host

404

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1

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2018-08-16 23:48:58 -0600 berak

Cast CvCameraViewFrame to Mat throws Error. What to do instead?

118

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no

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2018-09-05 17:12:00 -0600 2ros0

cv::Mat class member

882

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1

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no

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2018-10-14 02:07:00 -0600 Sid24

4 dimensional Mat in opencv JAVA

2k

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1

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2018-10-24 18:42:03 -0600 berak

Mat::at throws error: Assertion failed ((unsigned)i0 < (unsigned)size.p[0]) in opencv\build\include\opencv2\core\mat.inl.hpp, line 1100

231

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2018-10-25 01:30:02 -0600 berak

what is the most effective way to measure middle width of trapezoid? C++

581

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2

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2018-10-28 10:01:11 -0600 BALAKRISHANAN NAGARAJAN

How to concat Mat1's top half with Mat2's bottom half

151

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2018-11-15 14:06:46 -0600 Sartogersofortotropher

Rewrite old openCV code

IplImage
Mat

540

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no

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2018-11-17 09:04:11 -0600 viohh

subtraction of point2f vectors

502

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2018-12-30 03:22:34 -0600 happy__

Access value with a pointer in Mat [closed]

Mat

452

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2019-01-31 06:46:10 -0600 bern_007

OpenCV Mat Java

203

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2019-02-07 19:17:32 -0600 kingbob

Merging window(viz3d and mat)

282

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2019-03-08 05:09:40 -0600 RPH

Wrap OpenCV Mat as numpyarray hangs ?

307

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1

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2019-04-01 10:21:37 -0600 mdresser

Extract pixel value from Mat not working (for me)

634

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2019-04-05 20:54:10 -0600 opencvddddd

why does cv::VideoCapture >> cv::Mat take so long time?

77

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2019-04-22 05:02:14 -0600 berak

How to make Mat as new whenever the function called again? [closed]

clean
Mat

1k

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1

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no

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2019-04-23 07:36:42 -0600 berak

How to element-wise multiplication of Mat.

Mat
multiply

2k

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1

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no

votes

2019-04-24 04:21:40 -0600 berak

Copy smaller mat to part of bigger mat

android
Mat

467 questions

How can access vector <cv::Mat> data by using ptr or data method?

Row and Col problem when Mat represents 3d point cloud

cv::Mat make VS 2017 Freeze when hovered

can't find cv::ppf_match_3d::loadPLYSimple

XYZ Data to Mat

Communication between c++ and python

how to new Mat

Create a transparent Mat in Android

How to do copy cv::Mat by pointer into tensor of type float?

Convert RGBTRIPLE to cv::Mat

How to call imshow("", cv::Mat) from a function passed to void* ptr of trackbar callback?

Efficient calculation with multiple cv::Mat

Download a vector of GpuMats to Host

Cast CvCameraViewFrame to Mat throws Error. What to do instead?

cv::Mat class member

4 dimensional Mat in opencv JAVA

Mat::at throws error: Assertion failed ((unsigned)i0 < (unsigned)size.p[0]) in opencv\build\include\opencv2\core\mat.inl.hpp, line 1100

what is the most effective way to measure middle width of trapezoid? C++

How to concat Mat1's top half with Mat2's bottom half

Rewrite old openCV code

subtraction of point2f vectors

Access value with a pointer in Mat [closed]

OpenCV Mat Java

Merging window(viz3d and mat)

Wrap OpenCV Mat as numpyarray hangs ?

Extract pixel value from Mat not working (for me)

why does cv::VideoCapture >> cv::Mat take so long time?

How to make Mat as new whenever the function called again? [closed]

How to element-wise multiplication of Mat.

Copy smaller mat to part of bigger mat

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