Questions - OpenCV Q&A Forum

300

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no

answers

no

votes

2019-05-16 03:35:15 -0600 tobia

Replace image background [closed]

computervision

175

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no

answers

no

votes

2019-05-16 08:27:12 -0600 osguli

VideoCapure::open(const String & filename) blocked 30s, Camera not running /On multi-thread, open() do like single-thread

Open

280

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no

answers

-1

votes

2019-05-16 06:52:36 -0600 Mellicent

cv2.error: (-215)

133

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no

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2019-05-16 12:54:36 -0600 hua

Why I can't use the resulted gpumat from cv::cuda::Convolution::convole()?

607

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no

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2019-05-16 21:22:08 -0600 HKTURAN

Object detection slow processing video [closed]

cv2
python

491

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no

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2019-05-17 00:59:03 -0600 saniket123

java: symbol lookup error: undefined symbol: _ZN2cv3Mat20updateContinuityFlagEv

786

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2019-05-17 03:09:31 -0600 Mihir Srivastav

Generate Cropped and Masked IRIS - Eye Image [closed]

iris-detection

17k

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no

answers

1

vote

2019-05-17 04:47:52 -0600 ILikeCheapWater

Visualize differences between two images

273

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2019-06-18 02:58:56 -0600 frogeye

Random Forest with categorical features. [closed]

random_forest

261

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no

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2019-05-18 12:54:27 -0600 Saul R

imshow as a stream of PNG images [closed]

imshow

282

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no

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2019-05-18 13:01:26 -0600 thadaBoy

How to fix 'only black frames receiving' in Android with OpenCV

625

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2019-05-24 15:09:37 -0600 Kafan

How to merge Remap InputArray and Affine Transforms

152

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2019-05-20 06:43:18 -0600 hua

I got wrong cv::cuda::Convoltion::convolution results.

265

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2019-05-20 10:26:06 -0600 berak

Error in TextDetectorCNN_create

OCR

1k

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2019-05-20 13:40:22 -0600 vfbsilva

Can't build darknet (CNN) with CUDNN support

106

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no

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2019-05-21 01:58:08 -0600 peacherwu

Build opencv with cuda for ARM?

948

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2019-05-21 11:32:00 -0600 Moso

OpenCV 4.1.0 in Linux: works with Java but not with Kotlin

434

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no

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2019-05-21 15:01:04 -0600 violetforest

How to calculate pose and transformation for contours and its bounding rect for AR app?

156

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no

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2019-05-21 17:53:39 -0600 JamesMaxwell

Camera Calibration

Undistort

70

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answers

no

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2019-05-22 03:50:44 -0600 LBerger

differents results using caffe demo and opencv

bvlc_googlenet

355

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no

answers

no

votes

2019-05-22 04:51:40 -0600 david.serrano

Android CameraBridgeViewBase - deliverAndDrawFrame insights

357

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no

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2019-05-22 08:41:21 -0600 Praveengopal

OpenCV: Convert Compressed video to frames Java

java

281

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no

answers

-1

votes

2019-05-22 07:11:27 -0600 Sabarish_17

Is it possible to detect the measurements of body parts in a normal camera using OpenCV? [closed]

165

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no

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2019-05-22 09:53:21 -0600 asashour

Paypal always gives an error [closed]

donate

268

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no

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2019-05-22 13:35:50 -0600 Jaques

calculate Z from two images possible?

142

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no

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2019-05-23 22:25:08 -0600 supra56

Does the camera calibration take into consideration other type of x,y corrected relations that can include other fctors like k1, k2, p1, p2, p3, p4 instead of only k1, k1, p1, p2, k3

calibrate

1k

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no

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2019-05-24 22:22:29 -0600 abu abdulla

performance of videoCapture with gst pipeline

463

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no

answers

no

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2019-05-23 22:23:44 -0600 supra56

OpenCV VideoCapture in Win10 VS17 cannot open more than four USB 3.0 cameras

423

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no

answers

no

votes

2019-05-23 00:07:02 -0600 NeoDreamer

C API problem on OpenCV 3.4.6. [closed]

c-api
3.4.6

837

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no

answers

no

votes

2019-05-23 07:58:12 -0600 Anomalix

29,830 questions

Replace image background [closed]

VideoCapure::open(const String & filename) blocked 30s, Camera not running /On multi-thread, open() do like single-thread

cv2.error: (-215)

Why I can't use the resulted gpumat from cv::cuda::Convolution::convole()?

Object detection slow processing video [closed]

java: symbol lookup error: undefined symbol: _ZN2cv3Mat20updateContinuityFlagEv

Generate Cropped and Masked IRIS - Eye Image [closed]

Visualize differences between two images

Random Forest with categorical features. [closed]

imshow as a stream of PNG images [closed]

How to fix 'only black frames receiving' in Android with OpenCV

How to merge Remap InputArray and Affine Transforms

I got wrong cv::cuda::Convoltion::convolution results.

Error in TextDetectorCNN_create

Can't build darknet (CNN) with CUDNN support

Build opencv with cuda for ARM?

OpenCV 4.1.0 in Linux: works with Java but not with Kotlin

How to calculate pose and transformation for contours and its bounding rect for AR app?

Camera Calibration

differents results using caffe demo and opencv

Android CameraBridgeViewBase - deliverAndDrawFrame insights

OpenCV: Convert Compressed video to frames Java

Is it possible to detect the measurements of body parts in a normal camera using OpenCV? [closed]

Paypal always gives an error [closed]

calculate Z from two images possible?

Does the camera calibration take into consideration other type of x,y corrected relations that can include other fctors like k1, k2, p1, p2, p3, p4 instead of only k1, k1, p1, p2, k3

performance of videoCapture with gst pipeline

OpenCV VideoCapture in Win10 VS17 cannot open more than four USB 3.0 cameras

C API problem on OpenCV 3.4.6. [closed]

Convert ndarray to numpy (perform tracking on screenshot) [closed]

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