Questions - OpenCV Q&A Forum

264

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2020-05-11 03:56:31 -0600 trsh

Help needed with boundingRect in openCV.js

boundingRect

1k

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1

answer

no

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2020-05-11 07:00:45 -0600 kbarni

OpenCV Background Subtraction Get Color Objects (Python)

32k

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1

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no

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2020-05-10 15:41:13 -0600 supra56

OpenCV(3.4.2) C:\projects\opencv-python\opencv\modules\highgui\src\window.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow

copencv2

509

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1

answer

-1

votes

2020-05-10 12:15:58 -0600 LiorA

Eyes bags removal using OpenCV ?

face

346

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no

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no

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2020-05-10 11:53:28 -0600 trsh

Video frames problem

Video

263

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1

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no

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2020-05-12 14:14:14 -0600 supra56

How can I gain the speed on facial recognition

facerecognize

134

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no

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-1

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2020-05-09 14:27:06 -0600 jeeva

find distance of x and y in discontinuity in alignment

Overlooked

4k

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1

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no

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2020-05-10 09:27:32 -0600 HYPEREGO

How to automatically align an image using OpenCV in Python

python

927

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1

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no

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2020-05-09 09:55:14 -0600 HYPEREGO

How does the Sobel operator handle gradients over 255?

581

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no

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2020-05-16 07:26:42 -0600 Vasu

How do we matching the features on image with live camera and draw the rectangle?

opencv

893

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no

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no

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2020-05-08 09:41:49 -0600 FilipVW

Cmake error OpenCV contrib CUDA

CUDA

5k

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no

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2020-05-08 09:32:36 -0600 trsh

Where can I get "face_landmark_model.dat" for createFacemarkKazemi? [closed]

FacemarkKazemi

423

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1

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no

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2020-05-08 03:04:38 -0600 berak

Why do I miss "seamlessClone" function in openCV.js ?

seamlessClone

436

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no

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no

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2020-05-07 20:50:51 -0600 VigneshSuresh

Is there a package or module in python for xray scanning??? [closed]

213

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no

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2020-05-07 15:40:30 -0600 trsh

Face swaping for video

Video

2k

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2

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no

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2020-05-09 10:12:14 -0600 HYPEREGO

How to align images of a known object with a 3D model of that object using opencv?

calibration

723

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no

answers

no

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2020-05-07 08:47:59 -0600 cudawarped

CUDA DNN initialization when changing in batch size

CUDA
dnn

274

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no

answers

no

votes

2020-05-07 05:57:00 -0600 Onic009

Perspective Transform (Homography) on rgb-d images

cvWarpPerspective

1k

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no

answers

no

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2020-05-07 05:13:39 -0600 snehal

Remove vignetting effect [closed]

opencv
c++

238

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no

answers

1

vote

2020-05-07 04:11:45 -0600 ksenobojca

"_InputArray::isVector()" with Python data

239

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no

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2020-05-06 13:17:58 -0600 sumant

How to upgrade cv2 from 4.2.34 to 4.3.0

opencv4.3.0

967

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1

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no

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2020-05-06 11:45:31 -0600 cavuselami

Is opencv’s ‘dnn’ module working on jetson nano

CUDA
Nano

455

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1

answer

no

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2020-05-06 09:43:36 -0600 berak

OpenCV.js Face landmark detection

landmarks

817

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no

answers

no

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2020-05-06 09:11:42 -0600 SimonKirkman

Applying external calibration parameters to an image

calibration

327

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1

answer

no

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2020-05-06 11:43:31 -0600 supra56

How to merge rectangles of matchTemplate?

python

1k

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no

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2020-05-06 08:13:15 -0600 thor2.7182

Opencv430.jar was not created after cmake [closed]

550

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1

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no

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2020-05-06 04:58:36 -0600 berak

2.4.2 DLL download for Windows

opecv2.4.2

1k

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no

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no

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2020-05-05 14:30:58 -0600 Dj EKI

ImportError: DLL load failed: Das angegebene Modul wurde nicht gefunden.

535

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no

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2020-05-05 16:09:55 -0600 Cătălina Sîrbu

How to avoid contours of different shapes to combine

2k

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2

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no

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2020-05-06 01:07:47 -0600 berak

29,830 questions

Help needed with boundingRect in openCV.js

OpenCV Background Subtraction Get Color Objects (Python)

OpenCV(3.4.2) C:\projects\opencv-python\opencv\modules\highgui\src\window.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow

Eyes bags removal using OpenCV ?

Video frames problem

How can I gain the speed on facial recognition

find distance of x and y in discontinuity in alignment

How to automatically align an image using OpenCV in Python

How does the Sobel operator handle gradients over 255?

How do we matching the features on image with live camera and draw the rectangle?

Cmake error OpenCV contrib CUDA

Where can I get "face_landmark_model.dat" for createFacemarkKazemi? [closed]

Why do I miss "seamlessClone" function in openCV.js ?

Is there a package or module in python for xray scanning??? [closed]

Face swaping for video

How to align images of a known object with a 3D model of that object using opencv?

CUDA DNN initialization when changing in batch size

Perspective Transform (Homography) on rgb-d images

Remove vignetting effect [closed]

"_InputArray::isVector()" with Python data

How to upgrade cv2 from 4.2.34 to 4.3.0

Is opencv’s ‘dnn’ module working on jetson nano

OpenCV.js Face landmark detection

Applying external calibration parameters to an image

How to merge rectangles of matchTemplate?

Opencv430.jar was not created after cmake [closed]

2.4.2 DLL download for Windows

ImportError: DLL load failed: Das angegebene Modul wurde nicht gefunden.

How to avoid contours of different shapes to combine

Create mock OpenCV camera on Python

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