Questions - OpenCV Q&A Forum

8

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2020-10-31 12:50:07 -0500 Maaike

Make GpuMat continuous / copy to continuous memory.

8

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2020-10-31 09:13:50 -0500 nairdap

Undefined references to tiff library

tiff
libtiff

13

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1

answer

no

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2020-10-31 02:54:25 -0500 berak

Parsing error (Unsupported activation: relu) in ReadDarknetFromCfgStream

12

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2020-10-31 01:39:08 -0500 vanditha_07

How can I get this code working in case of video having colored background?

opencvpython

11

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no

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2020-10-30 17:27:41 -0500 iacisme

Issues encoding image captured using cv2.VideoCapture(). Goal is to display image in an iPywidget

13

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2020-10-30 17:05:24 -0500 YouNoNo

OpenCV cannot read from my VGA Webcam

opencv#window

14

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2020-10-30 14:57:41 -0500 Ahmed

Spatial and temporal on depth image

c++

11

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2020-10-30 08:09:31 -0500 DarioP

Letting highgui show pixel value in HLS colorspace

14

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2020-10-30 03:01:00 -0500 storyour1

i can't enter docs.opencv.org/

documentation

21

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2020-10-29 21:18:05 -0500 jjreddish

Template matching doesn't work as expected.

python

25

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2020-10-29 16:08:05 -0500 emuemu

Consistently failing to compile openCV with RPi 3B+

19

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2020-10-29 11:04:48 -0500 Franck

Opencv 4.5.0 / Android / how to implement a Wiener filter ?

Wiener

16

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2020-10-29 10:16:25 -0500 Seungho Hyun

MS Visual Studio 2017 MFC, when using StereoBM not have information

19

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2020-10-29 06:45:50 -0500 sreenija

form a possible rectangle

python

102

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2020-10-29 02:11:18 -0500 berak

I have an error and I don't know how to solve it. AttributeError: 'NoneType' object has no attribute 'isOpened'. Can someone help?

52

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2020-10-28 12:45:36 -0500 bko

Error compiling project with CMAKE

41

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2020-10-28 08:54:16 -0500 sturkmen

Check image dissimilar areas using SIFT

SIFT

21

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-1

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2020-10-28 02:17:21 -0500 tahereh rasouli

3d The amount of movement of two images

46

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2020-10-28 01:21:03 -0500 Dinir Imameev

Loading Tensorflow model. Error: Unspecified error (More than one input is Const op) in cv::dnn::dnn4_v20200310

39

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1

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-1

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2020-10-28 00:47:01 -0500 sturkmen

Creating simple custom librarys using the opencv library

14k

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2

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no

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2020-10-27 23:03:25 -0500 hodu

Use allocated buffer for Mat Data Pointer

49

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1

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2020-10-27 15:10:09 -0500 sturkmen

Saving video from frames in with fourcc codec h264 and h265 with opencv

45

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no

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2020-10-27 09:49:25 -0500 Noob87

using open cv to control relay

39

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1

answer

2

votes

2020-10-27 08:48:15 -0500 8rainfog

Opencv_contrib - Surface matching issue

25

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1

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no

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2020-10-27 06:33:17 -0500 flaviu2

Input file is invalid

python

72

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2020-10-27 02:56:33 -0500 berak

i can't install opencv

eror

33

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no

answers

2

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2020-10-26 20:23:26 -0500 warpstar22

Gstreamer Pipeline to NV12toBGR using GAPI

GAPI

141

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no

answers

2

votes

2020-10-26 15:47:52 -0500 kilwa

Algorithm suggestion for texture image matching

30

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no

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no

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2020-10-26 11:15:43 -0500 Rickvanhek

Insanely high cpu usage for simple videocapture (50% cpu usage)

30

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no

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2020-10-26 08:16:34 -0500 Nick7

31,334 questions

Make GpuMat continuous / copy to continuous memory.

Undefined references to tiff library

Parsing error (Unsupported activation: relu) in ReadDarknetFromCfgStream

How can I get this code working in case of video having colored background?

Issues encoding image captured using cv2.VideoCapture(). Goal is to display image in an iPywidget

OpenCV cannot read from my VGA Webcam

Spatial and temporal on depth image

Letting highgui show pixel value in HLS colorspace

i can't enter docs.opencv.org/

Template matching doesn't work as expected.

Consistently failing to compile openCV with RPi 3B+

Opencv 4.5.0 / Android / how to implement a Wiener filter ?

MS Visual Studio 2017 MFC, when using StereoBM not have information

form a possible rectangle

I have an error and I don't know how to solve it. AttributeError: 'NoneType' object has no attribute 'isOpened'. Can someone help?

Error compiling project with CMAKE

Check image dissimilar areas using SIFT

3d The amount of movement of two images

Loading Tensorflow model. Error: Unspecified error (More than one input is Const op) in cv::dnn::dnn4_v20200310

Creating simple custom librarys using the opencv library

Use allocated buffer for Mat Data Pointer

Saving video from frames in with fourcc codec h264 and h265 with opencv

using open cv to control relay

Opencv_contrib - Surface matching issue

Input file is invalid

i can't install opencv

Gstreamer Pipeline to NV12toBGR using GAPI

Algorithm suggestion for texture image matching

Insanely high cpu usage for simple videocapture (50% cpu usage)

malloc: can't allocate region at import cv2

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