Questions - OpenCV Q&A Forum

578

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2020-06-01 04:03:59 -0600 berak

I am using LBPH model yml to same images after train, it is overwriting.. someone to guide me over there.. do i have to use one yml file separete yml file for each user who register his/her face.

1k

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no

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2020-05-31 22:11:16 -0600 Matías

Fix "nvcc fatal : Could not set up the environment for Microsoft Visual Studio"

979

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2020-05-31 11:18:32 -0600 rp_sungho

When to use OpenCV and Eigen3 Library

eigen3

228

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no

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2020-05-31 09:52:12 -0600 Suny

Is the function cv2.bitwise_or() use in dilation can be use in erosion ?

63

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no

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2020-05-31 08:19:40 -0600 MrSanman05

Is there any documentation for OpencvAndroid sdk to process real time object dimension?

opencvandroid

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1

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no

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2020-05-31 07:41:04 -0600 supra56

Video corrupted after using Canny then writing. Can you guys spot the mistake

1k

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2020-05-31 03:18:23 -0600 berak

how to compare detected face with image

7k

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2020-05-30 13:06:09 -0600 berak

fatal error: opencv2/aruco.hpp: No such file or directory

3k

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1

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2020-05-30 10:42:14 -0600 sturkmen

MatrixXf eigen and Mat opencv

671

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2020-05-29 11:53:46 -0600 Pretto

how to process with opencv and python a live video transmission from a webrtc site

opencv

2k

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no

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no

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2020-05-29 04:52:13 -0600 Bavokn

Cannot run yolov3 on GPU with Cuda 10.2 in docker container

268

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2020-05-29 02:46:49 -0600 holger

Silly License Question [closed]

605

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2020-05-29 02:26:31 -0600 berak

Load an SVM from a string in Python?

1k

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1

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2020-05-29 01:09:30 -0600 berak

How do I see outputs of every layer of DNN OpenCV Python (visualization tool)?

1k

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1

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no

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2020-05-28 15:37:20 -0600 albeh95

'type' undeclared identifier opencv traits.hpp

object-tracking

1k

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no

answers

-1

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2020-05-28 12:41:00 -0600 berak

imx8: resize.cpp:3784: error: (-215:Assertion failed) !ssize.empty() in function 'resize'

opencv

824

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no

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2020-05-28 10:30:14 -0600 kbarni

image segmentation

image-segmentation

728

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1

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2020-05-28 09:45:20 -0600 kbarni

Is there a function to average (mean) filter for a pixel?

161

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no

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2020-05-28 04:23:21 -0600 berak

having trouble to access to pixels in ROI

c++
opencv

1k

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no

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no

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2020-05-28 04:13:43 -0600 albeh95

Drawing a rectangle around detected object with SIFT [closed]

SIFT

694

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no

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2020-05-28 03:47:25 -0600 supra56

Video camera -Windows Visual C++ build works, gcc doesn't

85

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2020-05-28 01:44:38 -0600 mm1994uestc

Which Opencv algorithm is supported by TAPI?

opencvtapiopencldsp

275

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no

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2020-05-27 19:59:29 -0600 jadengao

Is OpenCV allowed to use in windows user space driver of camera?

271

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no

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2020-05-27 13:16:15 -0600 kpachinger

OpenCV camera works really strange (Android)

318

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no

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2020-05-27 09:53:23 -0600 Rok

Tracker property access fails with SEGFAULT on ARM, but works in X86_64

4k

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1

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no

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2020-05-27 08:14:38 -0600 Amal

error: Unsupported activation: mish in function 'cv::dnn::darknet::ReadDarknetFromCfgStream'

412

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1

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no

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2020-05-27 07:26:56 -0600 supra56

Issue with np.zeros() while trying to get a black background

background

1k

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1

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no

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2020-05-27 04:06:29 -0600 kbarni

what contains cv::Mat data

654

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1

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1

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2020-05-27 03:33:00 -0600 kpachinger

detecting multi color document with OpenCV4Android

759

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1

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no

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2020-05-27 02:57:52 -0600 berak

29,830 questions

I am using LBPH model yml to same images after train, it is overwriting.. someone to guide me over there.. do i have to use one yml file separete yml file for each user who register his/her face.

Fix "nvcc fatal : Could not set up the environment for Microsoft Visual Studio"

When to use OpenCV and Eigen3 Library

Is the function cv2.bitwise_or() use in dilation can be use in erosion ?

Is there any documentation for OpencvAndroid sdk to process real time object dimension?

Video corrupted after using Canny then writing. Can you guys spot the mistake

how to compare detected face with image

fatal error: opencv2/aruco.hpp: No such file or directory

MatrixXf eigen and Mat opencv

how to process with opencv and python a live video transmission from a webrtc site

Cannot run yolov3 on GPU with Cuda 10.2 in docker container

Silly License Question [closed]

Load an SVM from a string in Python?

How do I see outputs of every layer of DNN OpenCV Python (visualization tool)?

'type' undeclared identifier opencv traits.hpp

imx8: resize.cpp:3784: error: (-215:Assertion failed) !ssize.empty() in function 'resize'

image segmentation

Is there a function to average (mean) filter for a pixel?

having trouble to access to pixels in ROI

Drawing a rectangle around detected object with SIFT [closed]

Video camera -Windows Visual C++ build works, gcc doesn't

Which Opencv algorithm is supported by TAPI?

Is OpenCV allowed to use in windows user space driver of camera?

OpenCV camera works really strange (Android)

Tracker property access fails with SEGFAULT on ARM, but works in X86_64

error: Unsupported activation: mish in function 'cv::dnn::darknet::ReadDarknetFromCfgStream'

Issue with np.zeros() while trying to get a black background

what contains cv::Mat data

detecting multi color document with OpenCV4Android

How can I remove the metadata from my image.

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