Questions - OpenCV Q&A Forum

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2018-09-26 08:52:30 -0600 Mehdi

Compile the dnn module against the system version of opencv

compile
dnn

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2014-02-09 09:31:55 -0600 AbdiRaisa

ARDrone 2.0

ARDrone2

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2015-03-26 13:09:18 -0600 kkpant75

CMAKE Error in OpenCV 3.0.0 while compiling opencv_contrib

104

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2018-10-19 02:37:27 -0600 Winne King

About CalibrateCamera() Why are the results different every time?

calibrationCamera

348

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answers

1

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2016-11-11 21:25:57 -0600 Alfred

how to get a better binary image from low quality image?

1k

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2014-05-20 01:41:27 -0600 wintersfury

OPENCV dev 3.0.0 "DownhillSimplex Method" OpenCV Error: Assertion failed

187

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2019-01-08 09:32:58 -0600 cjacquel

Face feature extraction

face
feature

80

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2019-01-06 14:05:32 -0600 OpenCVNewUser

Stuck on tutorial

tutorials

277

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2014-05-26 10:16:42 -0600 sohan

haar classifier lips Segmentation

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2017-11-20 08:24:00 -0600 r@opencv

Gstreamer error while trying to input video stream using opencv c++

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2019-07-12 08:59:03 -0600 the_phet

Python, when making a video it seems to ignore the set FPS

182

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2019-05-13 09:28:30 -0600 javanoob42

Add 'extra modules' from OpenCV 4.1.0 to Java in Eclipse

456

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-1

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2020-10-21 04:21:07 -0600 yujy9014

OpenCV Python program for Vehicle detection in a Video frame

mysqlopenv#python

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2015-10-20 08:46:07 -0600 Divya Vernekar

what are the steps to Install OpenCV-Python in Windows 7 32 bit

1k

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1

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2017-08-10 12:18:13 -0600 AnkurRoy

Detecting Hand drawn striked out lines on top a scanned pdf and detecting such sections in the document

665

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2016-06-08 15:25:09 -0600 kinigit1969

VideoWriter MJPG AVIs Do Not Play in Windows Media Player

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2018-12-10 01:29:06 -0600 SunXuan

All image pixel values become 205 after setting CAP_PROP_FRAME_WIDTH and CAP_PROP_FRAME_HEIGHT in OpenCV using webcam

c++#webcam

196

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2014-12-27 10:41:26 -0600 spinter696

Crop a different contrast region

326

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2015-07-28 04:53:57 -0600 Alex Shtof

Using strided external array as cv::Mat

c++
CvMat

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2017-08-20 16:34:29 -0600 Leon5x

Bug in cudacodecs video_reader.cpp sample

6k

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1

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2015-12-07 02:04:50 -0600 Reconstructor

Connection of several cameras: HIGHGUI ERROR: V4L: index XXX is not correct!

multiple_cameras

177

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2017-07-30 08:06:49 -0600 jsxyhelu

a question from 《leanring OpenCV 3》about hist

197

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1

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2017-08-15 11:09:07 -0600 BenM

JPEG shrink-on-load feature in imread() ?

497

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2017-12-21 04:51:09 -0600 MaxWell

Camera calibration

433

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2016-04-29 22:19:38 -0600 skypickle

Help analyze 'make' error in opencv-contrib3

opencv-contrib-reg

595

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no

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2015-02-25 15:54:33 -0600 ClintFromVa

Memory allocation in Mat for images - does it change type?

445

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2020-04-14 00:07:01 -0600 dhpancha

Run CUDA in Opencv4 in Jetson TX2

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2018-10-17 12:35:40 -0600 Caseguy

How to do shear transformation Python

python

841

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2014-08-25 14:53:05 -0600 yohanrw

Can you stop and continue Cascade training? (Probably LBP)

1k

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no

answers

2

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2013-04-18 14:26:34 -0600 flammxy

12,357 questions

Compile the dnn module against the system version of opencv

ARDrone 2.0

CMAKE Error in OpenCV 3.0.0 while compiling opencv_contrib

About CalibrateCamera() Why are the results different every time?

how to get a better binary image from low quality image?

OPENCV dev 3.0.0 "DownhillSimplex Method" OpenCV Error: Assertion failed

Face feature extraction

Stuck on tutorial

haar classifier lips Segmentation

Gstreamer error while trying to input video stream using opencv c++

Python, when making a video it seems to ignore the set FPS

Add 'extra modules' from OpenCV 4.1.0 to Java in Eclipse

OpenCV Python program for Vehicle detection in a Video frame

what are the steps to Install OpenCV-Python in Windows 7 32 bit

Detecting Hand drawn striked out lines on top a scanned pdf and detecting such sections in the document

VideoWriter MJPG AVIs Do Not Play in Windows Media Player

All image pixel values become 205 after setting CAP_PROP_FRAME_WIDTH and CAP_PROP_FRAME_HEIGHT in OpenCV using webcam

Crop a different contrast region

Using strided external array as cv::Mat

Bug in cudacodecs video_reader.cpp sample

Connection of several cameras: HIGHGUI ERROR: V4L: index XXX is not correct!

a question from 《leanring OpenCV 3》about hist

JPEG shrink-on-load feature in imread() ?

Camera calibration

Help analyze 'make' error in opencv-contrib3

Memory allocation in Mat for images - does it change type?

Run CUDA in Opencv4 in Jetson TX2

How to do shear transformation Python

Can you stop and continue Cascade training? (Probably LBP)

Are there any new algorithm about pedestrian detection,people counting?

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