Questions - OpenCV Q&A Forum

2k

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2017-12-06 16:48:46 -0600 sdwarfs

Is there already a way to add custom metadata to cv::Mat or cv::UMat?

1k

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1

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-1

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2017-07-06 15:53:25 -0600 matman

Encode image and copy to char* buffer [closed]

675

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1

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no

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2017-06-29 20:03:36 -0600 Tetragramm

Place data of Mat at a specific memoryarea pointed to by a pointer

715

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1

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no

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2017-05-29 17:31:56 -0600 Tetragramm

Asking about a good way to swapbytes for a cv::Mat

319

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1

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no

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2017-05-12 04:35:36 -0600 berak

Convert several 1D mat to a single 2D mat in OpenCV

CvMat

264

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no

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no

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2017-04-21 09:43:09 -0600 hhhhhhhhh

Returning cv::Mat from wrapped C++ function in Python

214

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1

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no

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2017-04-17 14:46:55 -0600 berak

The mat function pop_back does not seem to exist in Java+OpenCv 3.2.X

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1

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no

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2017-03-16 20:50:48 -0600 Tetragramm

From cv::Mat to saving image in a given format(png,jpeg...)

CvMat

7k

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1

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no

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2017-02-08 01:20:21 -0600 berak

Converting CV::Mat to double *

CvMat

446

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1

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no

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2017-01-21 05:02:47 -0600 lovaj

Filling cv::Mat calling function row by row?

matrix
CvMat

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2

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no

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2017-01-16 08:30:06 -0600 berak

insert elements of vector in cols of a mat

89

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1

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no

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2016-12-21 00:10:56 -0600 berak

Opencv row assignmement different values

CvMat

488

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no

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-1

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2016-08-30 08:19:12 -0600 zealotfb

OpenCV / C++: Adding feather to the content of a shape in cv::Mat

129

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no

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no

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2016-07-12 14:30:18 -0600 LBerger

socketdata to image

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2016-06-24 16:24:07 -0600 goldroses

How to flip matrix in place? [closed]

281

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2016-06-03 04:16:53 -0600 VanGog

Where to get MAT sources and how configure it for CMAKE?

11k

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1

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no

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2016-05-20 06:54:57 -0600 sturkmen

mat transpose .t() a Nx2 mat gives me a 1x2N output.

CvMat
matrix

226

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1

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no

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2016-05-18 08:10:39 -0600 berak

Basic operations on mat variable in android

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no

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2016-04-24 07:51:21 -0600 DoctorJohn

Mat from widthheight4 bytes BGRA Buffer [closed]

2k

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1

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no

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2016-04-22 02:12:47 -0600 hyder

CvMat vs cv::Mat data pointer

777

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no

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no

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2016-04-15 06:56:29 -0600 kovand11

cv:Mat Encoding (RGB vs BGR)

CvMat

266

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no

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no

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2016-04-06 05:26:49 -0600 choukri el

Segmentation fault when calling a method which contains an image as parameter

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1

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2016-03-24 15:30:56 -0600 cuongvt101

In which case Mat data is in continuous memory block and which case is not? [closed]

703

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no

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2016-02-24 10:17:35 -0600 fijoy

refcount attribute

42k

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2

answers

2

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2016-01-03 08:50:45 -0600 sturkmen

Convert std::vector<double> to Mat and show the image

224

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no

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no

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2015-12-07 05:03:35 -0600 KvltKitty

"Loop" an image tile [closed]

CvMat

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no

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no

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2015-12-07 02:22:16 -0600 opencvlover

How to use detectMultiScale detector for ROI in Face detection. Please help me in this code.

48

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no

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no

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2015-12-01 05:06:56 -0600 eumel

cvInitMatNDHeader in cvHistogram strange step sizes

opencv
CvMat

2k

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no

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no

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2015-11-28 13:05:06 -0600 DaveMk99

How can I convert ffmpeg AVFrame to cv::Mat?

2k

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1

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1

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2015-11-18 11:31:13 -0600 Rival

93 questions

Is there already a way to add custom metadata to cv::Mat or cv::UMat?

Encode image and copy to char* buffer [closed]

Place data of Mat at a specific memoryarea pointed to by a pointer

Asking about a good way to swapbytes for a cv::Mat

Convert several 1D mat to a single 2D mat in OpenCV

Returning cv::Mat from wrapped C++ function in Python

The mat function pop_back does not seem to exist in Java+OpenCv 3.2.X

From cv::Mat to saving image in a given format(png,jpeg...)

Converting CV::Mat to double *

Filling cv::Mat calling function row by row?

insert elements of vector in cols of a mat

Opencv row assignmement different values

OpenCV / C++: Adding feather to the content of a shape in cv::Mat

socketdata to image

How to flip matrix in place? [closed]

Where to get MAT sources and how configure it for CMAKE?

mat transpose .t() a Nx2 mat gives me a 1x2N output.

Basic operations on mat variable in android

Mat from widthheight4 bytes BGRA Buffer [closed]

CvMat vs cv::Mat data pointer

cv:Mat Encoding (RGB vs BGR)

Segmentation fault when calling a method which contains an image as parameter

In which case Mat data is in continuous memory block and which case is not? [closed]

refcount attribute

Convert std::vector<double> to Mat and show the image

"Loop" an image tile [closed]

How to use detectMultiScale detector for ROI in Face detection. Please help me in this code.

cvInitMatNDHeader in cvHistogram strange step sizes

How can I convert ffmpeg AVFrame to cv::Mat?

How to obtain Alpha from cv::mat (For wxWidgets::wxImage)

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