Questions - OpenCV Q&A Forum

204

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2020-09-03 08:31:11 -0600 Bouwy

image defect in grabcut

575

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1

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no

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2020-09-03 10:34:32 -0600 berak

Load and compare ground truth disparity maps with python

146

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2020-09-09 06:03:09 -0600 JWilliams

How can I calibate distortion using a series of lines

calibrateCamera

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2020-09-03 16:20:24 -0600 pippo

Omnidir undistort vs projectPoints

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2020-09-04 01:38:48 -0600 Ricki Hutagaol

Emgu Cv Show Black Screen when running [closed]

1k

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1

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-1

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2020-09-15 15:45:48 -0600 annikalinguistics

Continue video capture in background until new routine

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2020-09-04 12:19:50 -0600 Chiragatha

How can I use Haar cascade for face detection and kalman filter for tracking?

1k

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1

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1

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2020-09-05 03:23:08 -0600 Naser

Mat of int64

558

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2020-09-05 01:40:37 -0600 hoseinimage

numpy.linalg.inv error

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2020-09-05 20:15:47 -0600 RainBough

Can't import OpenCV to Android Studio

2k

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1

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1

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2020-10-13 16:52:03 -0600 Vijaykam

OpenCV 4.4 and multiprocessing on Windows 10

278

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2020-09-06 01:41:14 -0600 Nayan826

android Aruco. Cannot detect corners ?

249

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2020-09-06 10:48:10 -0600 photogenx

OpenCV iOS - Camera Selection

3k

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1

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2020-09-09 19:44:29 -0600 auimager

How to use opencv demosaicing

229

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2020-09-07 23:35:36 -0600 jwk

About calibrateCamera()'s fx of standard deviation

515

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2020-09-08 01:37:49 -0600 Warrior_KC

What is the best way to read frame from online streaming(using cv2.videocapture("sdp_file_name")) in every 5 secs from cv2.read ?

videostream

304

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2020-10-04 14:42:35 -0600 supra56

Webcam generated image distorted and python stop working

17k

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2

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2020-09-12 09:57:59 -0600 AbhiTronix

RTSP Streaming, Gstreamer or FFmpeg ?

2k

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1

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2020-09-10 02:08:23 -0600 berak

How to create 4D mat, like dnn::blobFromImage do?

1k

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3

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1

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2020-09-13 03:28:30 -0600 sturkmen

Opencv multiple circle detection in a image

243

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2020-09-09 11:01:37 -0600 eyanson

Detect faces with facemask (COVID) [closed]

7k

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1

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2020-09-09 11:56:24 -0600 grafy

opencv-4.4.0\modules\videoio\src\cap_msmf.cpp (682) CvCapture_MSMF::initStream Failed to set mediaType (stream 0, (640x480 @ 30) MFVideoFormat_RGB24(unsupported media type)

bug

919

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2020-09-09 15:17:42 -0600 AndrewSweter

Opencv4: Undefined reference to ippiw library symbols

1k

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2020-09-09 19:42:33 -0600 Ajith Nair

detect foreground and background colors from bounding rectangle

1k

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-1

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2020-09-10 03:17:14 -0600 hoseinimage

ValueError: setting an array element with a sequence.

1k

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2020-09-10 05:48:17 -0600 RashidLadj

Estimate camera pose from homography?

4k

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1

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2020-09-14 04:26:34 -0600 RoidDoi

Convert Images (cv::Mat)

convertTo

253

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no

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2020-09-10 11:42:21 -0600 bixaw67773

checkerboard for camera calibration - does size matter?

camera

15k

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2020-09-10 22:12:36 -0600 NiftyNev

cap_msmf.cpp (435) [ WARN:0] on cv2.VideoCapture break

757

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1

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no

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2020-09-11 02:28:44 -0600 berak

29,830 questions

image defect in grabcut

Load and compare ground truth disparity maps with python

How can I calibate distortion using a series of lines

Omnidir undistort vs projectPoints

Emgu Cv Show Black Screen when running [closed]

Continue video capture in background until new routine

How can I use Haar cascade for face detection and kalman filter for tracking?

Mat of int64

numpy.linalg.inv error

Can't import OpenCV to Android Studio

OpenCV 4.4 and multiprocessing on Windows 10

android Aruco. Cannot detect corners ?

OpenCV iOS - Camera Selection

How to use opencv demosaicing

About calibrateCamera()'s fx of standard deviation

What is the best way to read frame from online streaming(using cv2.videocapture("sdp_file_name")) in every 5 secs from cv2.read ?

Webcam generated image distorted and python stop working

RTSP Streaming, Gstreamer or FFmpeg ?

How to create 4D mat, like dnn::blobFromImage do?

Opencv multiple circle detection in a image

Detect faces with facemask (COVID) [closed]

opencv-4.4.0\modules\videoio\src\cap_msmf.cpp (682) CvCapture_MSMF::initStream Failed to set mediaType (stream 0, (640x480 @ 30) MFVideoFormat_RGB24(unsupported media type)

Opencv4: Undefined reference to ippiw library symbols

detect foreground and background colors from bounding rectangle

ValueError: setting an array element with a sequence.

Estimate camera pose from homography?

Convert Images (cv::Mat)

checkerboard for camera calibration - does size matter?

cap_msmf.cpp (435) [ WARN:0] on cv2.VideoCapture break

SystemError: <class 'cv2.UMat'> returned NULL without setting an error

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