Questions - OpenCV Q&A Forum

223

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no

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2019-11-25 15:09:11 -0600 bananapen

Generate Opticalflow on images using OpenCV

196

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no

answers

no

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2019-11-26 04:49:00 -0600 Kitnos

Real time video problem [closed]

394

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1

answer

no

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

Detect valve position without colors on a video

c++
opencv

1k

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no

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no

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2019-11-27 10:44:59 -0600 Kitnos

Camera pose estimation with QR code by Opencv

906

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1

answer

1

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

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

312

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no

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2

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2019-11-28 10:27:13 -0600 Elis4

How to use dnn as a detector for facemark ?

804

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1

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2019-11-28 12:57:21 -0600 mvuori

Save image using callBack Function

440

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2019-11-30 11:19:34 -0600 Kitnos

Knn for keypoints and descriptors of SIFT

484

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2019-11-30 11:44:56 -0600 bllu

OpenCV Compilation/Linking Errors in async.hpp, version.hpp, dict.hpp, etc. when #include <opencv2/dnn.hpp> and <opencv2/opencv.hpp>

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no

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2019-12-01 10:08:40 -0600 J.Han

Using OpenCV dnn module as dll, Net::forward() error

276

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2019-12-02 08:16:50 -0600 Kitnos

Problem displaying rectangle in a callBack function [closed]

393

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2019-12-03 08:27:29 -0600 Dimitar Veljanovski

How do I build a SLAM based tracking solution that tracks an object in 3D space

1k

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1

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-1

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2019-12-04 10:13:04 -0600 supra56

How to find circles in an image

c++
opencv

65

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no

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no

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2019-12-04 17:00:31 -0600 sjlee

How to use recolor effect in Excel with opencv [closed]

c++

353

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1

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no

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2019-12-05 12:11:35 -0600 mvuori

Mat ctor produces heap error?!?

3k

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1

answer

1

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2019-12-06 06:49:21 -0600 berak

Finding Dominant colors in an image in c++

c++
opencv

85

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no

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-1

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2019-12-09 04:35:14 -0600 it_master

How to associate a Mat color value to an int/float value?

c++

1k

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1

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no

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2019-12-09 12:16:06 -0600 gpcbitnik

How to pass image data from javascript to opencv c++ webassembly

15k

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3

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2

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2019-12-10 06:51:01 -0600 holger

Is there a way to keep imwrite from overwriting files..?

89

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no

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2019-12-11 02:21:36 -0600 it_master

How to associate a color value to a number?

c++
opencv

221

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no

answers

1

vote

2019-12-12 13:53:53 -0600 exbigboss

cv::findContours doesn't append to the OutputArrayOfArrays [closed]

159

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2019-12-13 04:28:48 -0600 CNieberding

How to install OpenCV 32bit on Win64 machine

160

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2019-12-18 11:04:37 -0600 heisenburg007

Get video input when device not on uvc input

3k

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no

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2019-12-28 07:54:19 -0600 berak

Assertion failed (!fixedType() || ((Mat*)obj)->type() == mtype) in cv::_OutputArray::create while Performing DFT

546

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2

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no

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2019-12-29 13:55:02 -0600 bwvb

Just linking to opencv ruins thread-concurrency!?

343

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no

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2019-12-29 23:20:22 -0600 jaylo

OpenCV Blender causes CL_BUILD_PROGRAM_FAILURE

4k

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1

answer

1

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2019-12-30 06:11:12 -0600 berak

Convert a 2D array to Mat (OpenCV) using C++, but the output of the Mat is wrong

3k

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1

answer

no

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2020-01-02 10:32:52 -0600 JeyP4

How to combine Color conversion(BGRA->BGR) and Remap operations?

11k

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1

answer

no

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2020-01-08 05:34:51 -0600 cudawarped

CUDA : OpenCV requires enabled 'cudev' module from 'opencv_contrib'

753

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no

answers

1

vote

2020-01-09 05:00:16 -0600 Sean87

2,575 questions

Generate Opticalflow on images using OpenCV

Real time video problem [closed]

Detect valve position without colors on a video

Camera pose estimation with QR code by Opencv

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

How to use dnn as a detector for facemark ?

Save image using callBack Function

Knn for keypoints and descriptors of SIFT

OpenCV Compilation/Linking Errors in async.hpp, version.hpp, dict.hpp, etc. when #include <opencv2/dnn.hpp> and <opencv2/opencv.hpp>

Using OpenCV dnn module as dll, Net::forward() error

Problem displaying rectangle in a callBack function [closed]

How do I build a SLAM based tracking solution that tracks an object in 3D space

How to find circles in an image

How to use recolor effect in Excel with opencv [closed]

Mat ctor produces heap error?!?

Finding Dominant colors in an image in c++

How to associate a Mat color value to an int/float value?

How to pass image data from javascript to opencv c++ webassembly

Is there a way to keep imwrite from overwriting files..?

How to associate a color value to a number?

cv::findContours doesn't append to the OutputArrayOfArrays [closed]

How to install OpenCV 32bit on Win64 machine

Get video input when device not on uvc input

Assertion failed (!fixedType() || ((Mat*)obj)->type() == mtype) in cv::_OutputArray::create while Performing DFT

Just linking to opencv ruins thread-concurrency!?

OpenCV Blender causes CL_BUILD_PROGRAM_FAILURE

Convert a 2D array to Mat (OpenCV) using C++, but the output of the Mat is wrong

How to combine Color conversion(BGRA->BGR) and Remap operations?

CUDA : OpenCV requires enabled 'cudev' module from 'opencv_contrib'

Calibrating camera only for one plane

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