Questions - OpenCV Q&A Forum

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2020-02-28 04:30:30 -0600 cudawarped

Sharpness opencv cuda python

328

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1

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2020-02-28 07:42:48 -0600 link1375

OpenCV detects most rectangular contours only if they are not aligned with the camera

findContours

152

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-1

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2020-02-28 11:35:19 -0600 jayasingha

3D reconstruction of a scene from 2D images [closed]

3d

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2020-02-28 13:23:23 -0600 raisa_

How do I write into YML format and read it with opencv and C++ ?

190

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2020-02-28 14:44:41 -0600 ROMEL

from an image having multiple rectangles some rectangles are filled with lines an some are empty like given below in the image.i need to remove all the rectangles which are empty.Any suggestions?

5k

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2020-02-28 15:40:23 -0600 firebladed

VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV

480

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2020-02-28 16:05:04 -0600 PressedTin

How do I make the method onCameraFrame() be called more frequently

455

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2020-02-28 21:33:31 -0600 Albert0924

OpenCV with GStreamer in Android Studio

171

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2020-03-01 00:27:58 -0600 essamzaky

Tutorial for creating deep NN model for a dataset and use it in Opencv [closed]

277

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no

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2020-03-01 06:06:15 -0600 berak

This is a code for recognition of faces and attendance marking. I get the following error

467

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2020-03-01 11:03:18 -0600 Maksat

Zero-normalised cross correlation for Template Matching

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2020-03-01 14:03:15 -0600 LBerger

CvCapture_MSMF::initStream Failed to set mediaType after switching to CUDA build of OpenCV

187

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2020-03-01 15:56:22 -0600 GilchristT

Newbie - how to classify images based on average amount of colour? [closed]

826

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2020-03-02 10:09:15 -0600 supra56

How does the minimum distance for Houghcircles work?

10k

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2020-03-02 11:36:38 -0600 berak

How to find contour of black regions in white background ?

197

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2020-03-02 14:02:41 -0600 raggupta2

What should be better strategy to extract the curves of this photo

python

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2020-03-02 18:36:24 -0600 lnx

error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

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2

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2020-03-02 19:10:54 -0600 HYPEREGO

How to use multiprocessing with OpenCV-C++ ?

334

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2020-03-03 02:32:51 -0600 Nativate

Help run caffemodel

707

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2020-03-03 03:28:40 -0600 Houthius

cv::projectPoints giving bad results when undistorted 2d projections are far

600

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2020-03-03 04:26:34 -0600 philyorkshire

iOS cv.imshow() not working

ios

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2020-03-03 05:04:41 -0600 cudawarped

Opencv cuda Merge returns Numpy array not GpuMat

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2020-03-03 05:41:19 -0600 AVK369

Prebuilt Windows binaries of opencv_contrib

613

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2020-03-03 07:03:58 -0600 kbarni

How to crop images using python?

133

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2020-03-03 07:49:26 -0600 supra56

Help appreciated. This is the error i get after executing the code. i use openpyxl 3.0.3 [closed]

397

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2020-03-03 09:24:58 -0600 eLtronicsvilla

optical flow orientation and magnitude based background and foreground segmentation

1k

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2020-03-03 12:49:04 -0600 sturkmen

Detect a half complete ellipse in opencv

604

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1

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2020-03-03 14:37:35 -0600 Eyal321

error when running warpPolar

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2020-03-03 14:54:24 -0600 LBerger

Masking part of the image and get binary image of the masked part

57

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2020-03-03 16:13:53 -0600 MoscowskyAD

Is there object matcher?

objectmatcher

29,830 questions

Sharpness opencv cuda python

OpenCV detects most rectangular contours only if they are not aligned with the camera

3D reconstruction of a scene from 2D images [closed]

How do I write into YML format and read it with opencv and C++ ?

from an image having multiple rectangles some rectangles are filled with lines an some are empty like given below in the image.i need to remove all the rectangles which are empty.Any suggestions?

VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV

How do I make the method onCameraFrame() be called more frequently

OpenCV with GStreamer in Android Studio

Tutorial for creating deep NN model for a dataset and use it in Opencv [closed]

This is a code for recognition of faces and attendance marking. I get the following error

Zero-normalised cross correlation for Template Matching

CvCapture_MSMF::initStream Failed to set mediaType after switching to CUDA build of OpenCV

Newbie - how to classify images based on average amount of colour? [closed]

How does the minimum distance for Houghcircles work?

How to find contour of black regions in white background ?

What should be better strategy to extract the curves of this photo

error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

How to use multiprocessing with OpenCV-C++ ?

Help run caffemodel

cv::projectPoints giving bad results when undistorted 2d projections are far

iOS cv.imshow() not working

Opencv cuda Merge returns Numpy array not GpuMat

Prebuilt Windows binaries of opencv_contrib

How to crop images using python?

Help appreciated. This is the error i get after executing the code. i use openpyxl 3.0.3 [closed]

optical flow orientation and magnitude based background and foreground segmentation

Detect a half complete ellipse in opencv

error when running warpPolar

Masking part of the image and get binary image of the masked part

Is there object matcher?

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