Questions - OpenCV Q&A Forum

15k

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2

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2020-07-12 03:33:50 -0600 supra56

cv2 imshow displaying black images sometimes

309

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1

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no

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2020-07-12 16:24:23 -0600 muroromoi

Finding a complex template on a image

3k

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1

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-1

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2020-07-11 08:15:46 -0600 berak

how to resolve (-215:Assertion failed) !_src.empty() in function 'cv::boxFilter'

java
opencv

835

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1

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no

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2020-07-11 02:21:43 -0600 berak

How to rotate putText from the Android studio.

1k

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no

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2020-07-11 03:32:40 -0600 supra56

can someone help me out

python3#importError

859

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no

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2020-07-11 03:35:42 -0600 supra56

what does this warning mean? warning : field of class type without a DLL interface used in a class with a DLL interface

3k

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no

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no

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2020-07-10 12:41:34 -0600 supra56

how to get duration/length video.webm video file ..

python

562

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1

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no

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2020-07-10 12:45:01 -0600 supra56

is there parallel computation or not

338

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no

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no

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2020-07-13 05:26:19 -0600 Wimpos

Ideal Pinhole Camera consistency

160

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no

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no

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2020-07-10 03:36:43 -0600 Christushka

Please tell us more about the algorithm " color_histogram.py" in the OpenCV library. I just can't find any information about this algorithm, and I can't understand how it works. Please explain.

сolor_histogram.py

449

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-1

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2020-07-11 22:48:56 -0600 despair104

How to solve this? (finding an image)

285

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1

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no

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2020-07-11 22:55:05 -0600 sn4k3

Transform gray image to create a pattern effect on while pixels given a mask

1k

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1

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no

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2020-10-06 12:00:24 -0600 sjhalayka

OpenCV - OpenGL - OpenCL Interop

1k

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3

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no

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2020-07-13 18:39:56 -0600 Alice_aj

Converting ArUco axis-angle to Unity3D Quaternion

125

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no

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no

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2020-07-09 11:41:44 -0600 arnoldman_66

Why are the coordinates of each crack not steady

2k

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no

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no

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2020-07-09 22:59:30 -0600 FikMisfits

body height measurement and length of arm with OpenCV from a single still image capture.

measurement

876

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no

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no

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2020-07-09 22:34:35 -0600 astronaut

How to use contours and Harris corners Functions in solvePnP?

537

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1

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no

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2020-07-09 02:53:16 -0600 aguila

Android dnn in native C++

664

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no

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no

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2020-07-09 01:53:40 -0600 ShrutheeshIR

Appropriate combination of Aruco markers for small sizes

aruco

447

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no

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no

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2020-07-08 18:21:25 -0600 benczejrobert

How to install openCV in Android Studio 4.0.0?

398

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no

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1

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2020-07-08 17:03:17 -0600 bodell

VideoCapture.read blocking Java thread in RUNNING state

678

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2020-07-08 14:39:09 -0600 supra56

android opencv optical mark recognition [closed]

208

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2020-07-08 10:06:20 -0600 albeh95

Loading a .yml file in a SVM

SVM

258

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no

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no

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2020-07-08 09:50:13 -0600 MysteriousH

Coordinate system for P1, P2 in triangulatepoint

27k

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1

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no

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2020-07-08 06:20:21 -0600 berak

how do i create a blank image in opencv-python without using numpy?

791

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no

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no

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2020-07-08 04:43:24 -0600 ARYL518

Nonlinear solver such as Levenberg- Marquardt

15k

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1

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no

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2020-10-04 15:09:39 -0600 supra56

Help geeting OpenCV to output a videostream using gstreamer. [closed]

471

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no

answers

1

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2020-07-07 16:33:44 -0600 MysteriousH

Advice on calibration and triangulation for large scale

1k

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no

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no

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2020-07-08 07:08:40 -0600 supra56

My graph.pbxt file is not working with frozen_inference_graph.pb file

798

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no

answers

1

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2020-07-07 09:32:14 -0600 cheind

29,830 questions

cv2 imshow displaying black images sometimes

Finding a complex template on a image

how to resolve (-215:Assertion failed) !_src.empty() in function 'cv::boxFilter'

How to rotate putText from the Android studio.

can someone help me out

what does this warning mean? warning : field of class type without a DLL interface used in a class with a DLL interface

how to get duration/length video.webm video file ..

is there parallel computation or not

Ideal Pinhole Camera consistency

Please tell us more about the algorithm " color_histogram.py" in the OpenCV library. I just can't find any information about this algorithm, and I can't understand how it works. Please explain.

How to solve this? (finding an image)

Transform gray image to create a pattern effect on while pixels given a mask

OpenCV - OpenGL - OpenCL Interop

Converting ArUco axis-angle to Unity3D Quaternion

Why are the coordinates of each crack not steady

body height measurement and length of arm with OpenCV from a single still image capture.

How to use contours and Harris corners Functions in solvePnP?

Android dnn in native C++

Appropriate combination of Aruco markers for small sizes

How to install openCV in Android Studio 4.0.0?

VideoCapture.read blocking Java thread in RUNNING state

android opencv optical mark recognition [closed]

Loading a .yml file in a SVM

Coordinate system for P1, P2 in triangulatepoint

how do i create a blank image in opencv-python without using numpy?

Nonlinear solver such as Levenberg- Marquardt

Help geeting OpenCV to output a videostream using gstreamer. [closed]

Advice on calibration and triangulation for large scale

My graph.pbxt file is not working with frozen_inference_graph.pb file

Latex/TikZ chessboard pattern generator

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