Questions - OpenCV Q&A Forum

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no

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no

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2017-12-04 08:10:23 -0600 AhmedSh3ban

error while saving model with svm [closed]

600

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1

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no

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2017-12-04 05:55:17 -0600 supra56

usbtv007 driver for capturevideo

1k

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2017-12-04 05:47:11 -0600 Studiosi

How to avoid the 4GB file size limit when recording video?

83k

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2

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2017-12-04 05:38:12 -0600 supra56

How to solve this cvtColor() error? "cv2.error: C:\builds\master_PackSlaveAddon-win32-vc12-static\opencv\modules\imgproc\src\color.cpp:7456: error: (-215) scn == 3 || scn == 4 in function cv::ipp_cvtColor"

546

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2017-12-04 05:24:00 -0600 supra56

Why are my two other frames completely black?

CaptureVideo

3k

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1

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2

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2017-12-04 05:06:37 -0600 LBerger

It is possible to encrypt and decrypt a secret text using openCV

image-processing

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2017-12-04 04:14:51 -0600 Tschokokuki

Conversion from CV_64F to CV_8U images in Edge Detection Tutorial

176

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no

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2017-12-03 19:45:42 -0600 supra56

copy some subimages and put them on other parts of the original images

535

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1

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2017-12-03 17:59:49 -0600 slu

OpenCV autoTrain() with EPS_SVR not working

551

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2017-12-03 09:48:12 -0600 LBerger

3D engine in opencv

3d

513

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2017-12-03 09:25:41 -0600 U.Swap

opencv detect image is tempored/photoshoped

python
numpy

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2017-12-03 08:10:35 -0600 fiammante

Webcam Videocapture gives black frame with C++

125

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no

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2017-12-03 06:25:50 -0600 berak

threshold cannot work normally

threshold

1k

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1

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-1

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2017-12-02 21:06:47 -0600 supra56

AttributeError: 'module' object has no attribute 'face' Pycharm OS

FaceRecognizer

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1

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no

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2017-12-02 17:26:29 -0600 Haselmaier

Frequent Errors When Reading From IP Camera

CaptureVideo

462

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2017-12-02 15:47:40 -0600 rc

Deskew Image using FitElipse angle [closed]

194

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2

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2017-12-02 12:26:06 -0600 fahad_nadeem

How to add documentaion of opencv for java in netbeans?

683

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1

answer

1

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2017-12-02 08:38:00 -0600 supra56

python opencv 3.3.0 + python 2.7 . how read/change tracker parameters

273

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no

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2017-12-01 23:05:45 -0600 BAHRAMUDIN ADIL

How we import OpenCV in java while using no compiler just Notepad?

3k

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2017-12-01 13:24:36 -0600 2ros0

Best calibration checkerboard config (size and square length) ?

14k

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2

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2017-12-01 11:28:32 -0600 pipeecs780

How to measure distance between 2 objects in a video? - Edited

332

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1

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2

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2017-12-01 08:40:13 -0600 Will Stewart

Kerberos.io looks for OpenCV developers

977

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2

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2017-12-01 06:13:15 -0600 supra56

detailsEnchance giving error: (-215) (scn == 3 || scn == 4) && (depth == CV_8U || depth == CV_32F) in function cvtColor

detailEnhance#python

251

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2017-12-01 04:14:10 -0600 venkatesh-u

OpenCV FaceRecognizer 3.3.0 with java, Mismatching images.

opencv#java

3k

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no

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-1

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2017-12-01 03:48:30 -0600 PoeteMaudit

findContours() does not find accurately contours (Python) [closed]

351

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2

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no

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2017-12-01 03:16:40 -0600 ya_ocv_user

Are there reliable algorithms to detect elementary 2D figures?

164

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no

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2017-12-01 03:10:28 -0600 liujiabin076

SolvePnP can't get correct result

1k

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1

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no

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2017-12-01 03:10:08 -0600 StevenPuttemans

Document Detection working with C++ code, But trouble in java conversion.

994

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2

answers

-1

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2017-11-30 21:15:31 -0600 supra56

why I can’t use sift/surf

opencvpython

302

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1

answer

no

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2017-11-30 20:44:04 -0600 supra56

29,830 questions

error while saving model with svm [closed]

usbtv007 driver for capturevideo

How to avoid the 4GB file size limit when recording video?

How to solve this cvtColor() error? "cv2.error: C:\builds\master_PackSlaveAddon-win32-vc12-static\opencv\modules\imgproc\src\color.cpp:7456: error: (-215) scn == 3 || scn == 4 in function cv::ipp_cvtColor"

Why are my two other frames completely black?

It is possible to encrypt and decrypt a secret text using openCV

Conversion from CV_64F to CV_8U images in Edge Detection Tutorial

copy some subimages and put them on other parts of the original images

OpenCV autoTrain() with EPS_SVR not working

3D engine in opencv

opencv detect image is tempored/photoshoped

Webcam Videocapture gives black frame with C++

threshold cannot work normally

AttributeError: 'module' object has no attribute 'face' Pycharm OS

Frequent Errors When Reading From IP Camera

Deskew Image using FitElipse angle [closed]

How to add documentaion of opencv for java in netbeans?

python opencv 3.3.0 + python 2.7 . how read/change tracker parameters

How we import OpenCV in java while using no compiler just Notepad?

Best calibration checkerboard config (size and square length) ?

How to measure distance between 2 objects in a video? - Edited

Kerberos.io looks for OpenCV developers

detailsEnchance giving error: (-215) (scn == 3 || scn == 4) && (depth == CV_8U || depth == CV_32F) in function cvtColor

OpenCV FaceRecognizer 3.3.0 with java, Mismatching images.

findContours() does not find accurately contours (Python) [closed]

Are there reliable algorithms to detect elementary 2D figures?

SolvePnP can't get correct result

Document Detection working with C++ code, But trouble in java conversion.

why I can’t use sift/surf

Repeatedly setting FPS makes webcam images darker

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