Questions - OpenCV Q&A Forum

4

views

no

answers

-1

votes

2019-11-13 07:03:50 -0500 nishant_elxsi

I tried to link FFMPEG with OpenCV,but I am getting unable to stop the video stream:inappropriate ioctl device error. I tried to install latest version of FFMPEG(4.2.1) and link it to OpenCV(3.4.3) installed.But I am getting the same error.

6k

views

1

answer

1

vote

2019-11-13 06:55:07 -0500 bot1131357

CV_FOURCC was not declared in this scope

3.0.0

26

views

2

answers

no

votes

2019-11-13 06:25:47 -0500 supra56

How to fix error error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow' when trying to capture a video stream?

12

views

1

answer

no

votes

2019-11-13 03:16:05 -0500 berak

error: use of undeclared identifier 'cv'

15

views

no

answers

no

votes

2019-11-13 02:29:42 -0500 kbarni

Hello, I am begginer with opencv c++ i have old code written in opencv 2 i want to change it .how can i change this cvConvert(Iplimage1, iplimage2); into new opencv c++ api.

11

views

no

answers

no

votes

2019-11-13 02:27:23 -0500 gpcbitnik

failed to load model with readNetFromModelOptimizer

8

views

no

answers

no

votes

2019-11-13 02:05:28 -0500 given001

ImportError:python2.7/dist-packages/RPIO-2.0: undefined symbol: makedev [closed]

16

views

1

answer

no

votes

2019-11-13 01:57:36 -0500 berak

Error while running Image stitching tutorial [closed]

16

views

2

answers

no

votes

2019-11-13 01:36:22 -0500 berak

undefined reference to imread

c++#opencv

13

views

no

answers

no

votes

2019-11-13 00:43:38 -0500 bot1131357

Cannot open MJPEG stream (ESP32 Cam)

10

views

no

answers

no

votes

2019-11-12 22:07:20 -0500 jlok

How do you properly track contours?

6

views

no

answers

no

votes

2019-11-12 15:37:51 -0500 tom.isaacson@teknique.com

What is a good result from stereo_calib?

11

views

no

answers

no

votes

2019-11-12 12:03:58 -0500 Vizer

Why does cv::VideoWriter close with corrupt avi indices?

13

views

1

answer

no

votes

2019-11-12 12:00:52 -0500 dhirwinjr

Issue using OpenCV 4.1.1 and Tracking API in Java

24

views

no

answers

no

votes

2019-11-12 11:51:53 -0500 postlude

Identifying and tracking drinks bottles in OpenCV without machine learning

12

views

no

answers

no

votes

2019-11-12 11:37:28 -0500 AdjustedStorm

Differences between Include Dirst - Compiled x Installed

11

views

no

answers

no

votes

2019-11-12 09:24:30 -0500 lucacarone

ReprojectImageTo3D OBJ file

24

views

1

answer

no

votes

2019-11-12 07:07:31 -0500 berak

Check camera activity

19

views

no

answers

no

votes

2019-11-12 06:10:07 -0500 Majd

How can i detect trees in Aerial Images?

python

14k

views

2

answers

-2

votes

2019-11-12 06:02:11 -0500 Tarviha

anyone know how to solve this error??

18

views

no

answers

no

votes

2019-11-12 05:17:53 -0500 AlexC

Which is the result of the function fitline() ?

15

views

no

answers

no

votes

2019-11-12 03:59:20 -0500 atagolee

how to distinguish "I" and "l" in image

18

views

no

answers

-1

votes

2019-11-11 22:35:51 -0500 bisu_on@163.com

Detecting Video Stuttering

27

views

1

answer

no

votes

2019-11-11 21:41:21 -0500 supra56

Segmentation fault from DetectorParameters[SOLVED]

15

views

no

answers

no

votes

2019-11-11 21:39:40 -0500 supra56

How to copy a mat object to a integer 2D matrix in opencv java ?

java

14

views

no

answers

no

votes

2019-11-11 20:00:48 -0500 Tbot1000

samples.findfile for loading photos

15

views

1

answer

no

votes

2019-11-11 12:44:23 -0500 LiamColeE

opencv_java3.so

21

views

1

answer

no

votes

2019-11-11 07:34:27 -0500 berak

Use sift and surf in latest release (4.1.1) on Ubuntu 18.04?

SIFT
SURF

17

views

no

answers

no

votes

2019-11-11 05:54:05 -0500 czgdp1807

References for RgbdPlane

rgbd

45

views

no

answers

no

votes

2019-11-11 05:38:25 -0500 AChow

31,809 questions

I tried to link FFMPEG with OpenCV,but I am getting unable to stop the video stream:inappropriate ioctl device error. I tried to install latest version of FFMPEG(4.2.1) and link it to OpenCV(3.4.3) installed.But I am getting the same error.

CV_FOURCC was not declared in this scope

How to fix error error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow' when trying to capture a video stream?

error: use of undeclared identifier 'cv'

Hello, I am begginer with opencv c++ i have old code written in opencv 2 i want to change it .how can i change this cvConvert(Iplimage1, iplimage2); into new opencv c++ api.

failed to load model with readNetFromModelOptimizer

ImportError:python2.7/dist-packages/RPIO-2.0: undefined symbol: makedev [closed]

Error while running Image stitching tutorial [closed]

undefined reference to imread

Cannot open MJPEG stream (ESP32 Cam)

How do you properly track contours?

What is a good result from stereo_calib?

Why does cv::VideoWriter close with corrupt avi indices?

Issue using OpenCV 4.1.1 and Tracking API in Java

Identifying and tracking drinks bottles in OpenCV without machine learning

Differences between Include Dirst - Compiled x Installed

ReprojectImageTo3D OBJ file

Check camera activity

How can i detect trees in Aerial Images?

anyone know how to solve this error??

Which is the result of the function fitline() ?

how to distinguish "I" and "l" in image

Detecting Video Stuttering

Segmentation fault from DetectorParameters[SOLVED]

How to copy a mat object to a integer 2D matrix in opencv java ?

samples.findfile for loading photos

opencv_java3.so

Use sift and surf in latest release (4.1.1) on Ubuntu 18.04?

References for RgbdPlane

Measure the rate of growth of a crack from Video

Links

Contributors

Tags