Questions - OpenCV Q&A Forum

906

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1

answer

1

vote

2019-11-27 11:07:15 -0600 Naman Gupta

can we create a 5*5 kernel np array in c++

394

views

1

answer

no

votes

2019-11-27 02:45:32 -0600 Ziri

Detect valve position without colors on a video

c++
opencv

2k

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1

answer

1

vote

2019-11-23 09:48:27 -0600 berak

How to save image data in shared pointer

c++
opencv

1k

views

1

answer

no

votes

2019-11-23 02:07:12 -0600 Akhil Patel

Android Studio how integrate NDK with Opencv

1k

views

2

answers

-1

votes

2019-11-21 08:40:45 -0600 Gilal Nauman

I have the codes for live video and finding contours separately.I would like to know how both the codes can be stitched together to find contours in a live video

opencv
c++

601

views

no

answers

no

votes

2019-11-19 11:13:41 -0600 zakaziko

Extract object and save it as an image.png using c++

c++
opencv

459

views

no

answers

no

votes

2019-11-19 09:36:21 -0600 TheEMcoder

findChessboardCorners() gives False in OpenCV 4.1.2 C++

2k

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no

answers

no

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2019-11-16 15:35:56 -0600 [email protected]

Rotate by warpPerspective after getPerspectiveTransform by 4 points in C++

c++
opencv

431

views

no

answers

no

votes

2019-11-13 22:01:41 -0600 patrick129

Change camera resolution in C++?

c++
opencv

122

views

no

answers

no

votes

2019-11-08 08:48:23 -0600 saurabh162

Could not find ChessboardCorners in following picture

opencv
c++

541

views

no

answers

no

votes

2019-11-08 08:08:20 -0600 Dimitar Veljanovski

Debug Assertion Error when detecting object and scene points in OpenCV

c++
opencv

1k

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no

answers

1

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2019-11-05 11:50:58 -0600 Soumya

How to write a vector<cv::Mat> to a single file? [closed]

25k

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1

answer

no

votes

2019-10-26 19:23:42 -0600 adi1525

Video from IP camera can't find starting number cv::icvExtractPattern

283

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no

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no

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2019-10-26 06:00:35 -0600 Shishigami

Issue writing Mat3b to GStreamer UDP sink

1k

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no

answers

no

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2019-10-25 07:19:01 -0600 Dimitar Veljanovski

SIFT detectAndCompute works but throws an error

868

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1

answer

no

votes

2019-10-17 04:04:52 -0600 Renaud

C++ compilation issue migrating from 3.4.3 to 4.1.1 on Android

1k

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1

answer

no

votes

2019-10-14 16:25:57 -0600 Espor

Opencv C++ Holistically-Nested Edge Detection

334

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no

answers

no

votes

2019-10-13 08:28:39 -0600 counter

[Help - OpenCV C++] Thread loop reconnects the camera

250

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no

answers

no

votes

2019-10-11 03:56:26 -0600 berak

DFT Orientation Angle OpenCV

2k

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no

answers

no

votes

2019-10-02 04:06:27 -0600 berak

capture video from camera by OpenCV?

opencv
c++

1k

views

no

answers

no

votes

2019-09-30 04:00:53 -0600 Debugger

Passing C++ cv::Mat to Image in C# [closed]

c++
opencv

1k

views

no

answers

no

votes

2019-09-27 22:29:39 -0600 vasanthahr

How to load any of this tracking algorithm in opencvjs(BOOSTING, MIL, KCF, TLD, MEDIANFLOW, GOTURN, MOSSE or CSRT)

3k

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no

answers

no

votes

2019-09-25 08:06:33 -0600 Crypto

opencv2/core.hpp: no such file or directory

323

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no

answers

no

votes

2019-09-19 02:21:37 -0600 RootbeerDev

Opencv 3.4.6 Tensorflow c++ crashes on setInput

2k

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1

answer

no

votes

2019-09-18 21:43:04 -0600 vasanthahr

Opencv.js: Getting (index):413 Uncaught (in promise) abort("OOM"). Build with -s ASSERTIONS=1 for more info.

237

views

1

answer

no

votes

2019-09-11 17:35:04 -0600 cancerberosgx

Is there any autogenerate code for emscripten binding?

2k

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no

answers

no

votes

2019-09-10 07:49:33 -0600 brendanlb

OpenCV fisheye calibration fails

1k

views

1

answer

no

votes

2019-09-09 04:09:29 -0600 Kitnos

Get the contours of largest blob

189

views

no

answers

no

votes

2019-08-25 04:08:32 -0600 Crazy Sage

Problem with OpenCV and MinGW 7.3.2

346

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no

answers

no

votes

2019-08-22 05:22:30 -0600 NickKao

1,383 questions

can we create a 5*5 kernel np array in c++

Detect valve position without colors on a video

How to save image data in shared pointer

Android Studio how integrate NDK with Opencv

I have the codes for live video and finding contours separately.I would like to know how both the codes can be stitched together to find contours in a live video

Extract object and save it as an image.png using c++

findChessboardCorners() gives False in OpenCV 4.1.2 C++

Rotate by warpPerspective after getPerspectiveTransform by 4 points in C++

Change camera resolution in C++?

Could not find ChessboardCorners in following picture

Debug Assertion Error when detecting object and scene points in OpenCV

How to write a vector<cv::Mat> to a single file? [closed]

Video from IP camera can't find starting number cv::icvExtractPattern

Issue writing Mat3b to GStreamer UDP sink

SIFT detectAndCompute works but throws an error

C++ compilation issue migrating from 3.4.3 to 4.1.1 on Android

Opencv C++ Holistically-Nested Edge Detection

[Help - OpenCV C++] Thread loop reconnects the camera

DFT Orientation Angle OpenCV

capture video from camera by OpenCV?

Passing C++ cv::Mat to Image in C# [closed]

How to load any of this tracking algorithm in opencvjs(BOOSTING, MIL, KCF, TLD, MEDIANFLOW, GOTURN, MOSSE or CSRT)

opencv2/core.hpp: no such file or directory

Opencv 3.4.6 Tensorflow c++ crashes on setInput

Opencv.js: Getting (index):413 Uncaught (in promise) abort("OOM"). Build with -s ASSERTIONS=1 for more info.

Is there any autogenerate code for emscripten binding?

OpenCV fisheye calibration fails

Get the contours of largest blob

Problem with OpenCV and MinGW 7.3.2

prior_box_layer.cpp:242: error: (-215:Assertion failed) !params.has("step") in function 'cv::dnn::PriorBoxLayerImpl::PriorBoxLayerImpl'

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