Questions - OpenCV Q&A Forum

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Sep 29 '0 nabatta

Drone Localization with IR Beacons?

369

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no

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Sep 29 '0 yaor42

unwrapPhaseMap() does not take ndarray in Python

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Sep 29 '0 Ricki Hutagaol

how to create an image box in python using tkinter

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Sep 29 '0 nic_olas

Detecting Charuco with low contrast and few pixels in big picture.

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Sep 29 '0 herbata666

Android - access hardware camera with Opencv-python and Kivy

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Sep 29 '0 Shassk

undistort() and remap() give different results

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Sep 30 '0 bluehawk91

How to Align two images?

image-alignment

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Sep 29 '0 hoka

opencv need gstreamer for build [closed]

Kurento

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Sep 30 '0 koumeravinus

model.forward give an error. opencv.js

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Oct 1 '0 Der Luftmensch

crash in Mat::release()

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Sep 30 '0 csggnn

UI calls in different threads (imshow) how to detect and avoid.

1k

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-2

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Oct 7 '0 supra56

How to show the offset difference value between base image and reference image in OpenCV?

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Oct 1 '0 berak

np.ones() shape resize using cv.trackbar

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Oct 2 '0 firebladed

Mlx90640 no video stream

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Oct 2 '0 HunterP

Computing distance of identified object with stereoCalibrate() and stereo(), not whole depth map

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Oct 4 '0 seva

Stitching pictures from rotating camera

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2

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Oct 3 '0 Stéphane Charette

what are the video plugins?

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Oct 3 '0 candleboy_

I'm having major issues with setting up h/w accelerated video capture on Windows 10. Would appreciate any and all help and advice.

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Oct 3 '0 firebladed

What type shoukd be used cv::Mat.forEach on 16bit Greyscale (CV_16UC1)

forEach

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Oct 3 '0 firebladed

potential loss of information in processing 16bit YUV greyscale [closed]

382

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Oct 4 '0 Dudi

crash in cv::Mat release function

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Oct 4 '0 ilouzl

VideoWriter not working on MacOS

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Oct 5 '0 Deauther_2560

f= cv2.dnn.readNet(prototxtPath, weightsPath) cv2.error: OpenCV(4.4.0) C:\caffe\caffe_io.cpp:1121: error: (-2:Unspecified error) FAILED: fs.is_open(). Can't open "\deploy.prototxt" in function 'cv::dnn::ReadProtoFromTextFile'

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Oct 5 '0 Jiftoo

What would be the best approach to detect walls or corridors in this game?

348

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Oct 5 '0 tim-hilt

GMS-matcher doesn't write to Output-Vector

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Oct 5 '0 yurky

Does parallel_for_ block until all threads complete?

553

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Oct 6 '0 aiubian

SOLVEPNP_ITERATIVE vs SOLVEPNP_EPNP vs SOLVEPNP_P3P vs solvePnPRansac - Which to use and when to use?

153

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-1

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Oct 6 '0 Sue

How can I get just one rgb value in a video from ROI's center

python

194

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no

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Oct 6 '0 mimeluff

Fisheye --> Undistorted --> Fisheye

python

496

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no

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Oct 6 '0 berak

29,830 questions

Drone Localization with IR Beacons?

unwrapPhaseMap() does not take ndarray in Python

how to create an image box in python using tkinter

Detecting Charuco with low contrast and few pixels in big picture.

Android - access hardware camera with Opencv-python and Kivy

undistort() and remap() give different results

How to Align two images?

opencv need gstreamer for build [closed]

model.forward give an error. opencv.js

crash in Mat::release()

UI calls in different threads (imshow) how to detect and avoid.

How to show the offset difference value between base image and reference image in OpenCV?

np.ones() shape resize using cv.trackbar

Mlx90640 no video stream

Computing distance of identified object with stereoCalibrate() and stereo(), not whole depth map

Stitching pictures from rotating camera

what are the video plugins?

I'm having major issues with setting up h/w accelerated video capture on Windows 10. Would appreciate any and all help and advice.

What type shoukd be used cv::Mat.forEach on 16bit Greyscale (CV_16UC1)

potential loss of information in processing 16bit YUV greyscale [closed]

crash in cv::Mat release function

VideoWriter not working on MacOS

f= cv2.dnn.readNet(prototxtPath, weightsPath) cv2.error: OpenCV(4.4.0) C:\caffe\caffe_io.cpp:1121: error: (-2:Unspecified error) FAILED: fs.is_open(). Can't open "\deploy.prototxt" in function 'cv::dnn::ReadProtoFromTextFile'

What would be the best approach to detect walls or corridors in this game?

GMS-matcher doesn't write to Output-Vector

Does parallel_for_ block until all threads complete?

SOLVEPNP_ITERATIVE vs SOLVEPNP_EPNP vs SOLVEPNP_P3P vs solvePnPRansac - Which to use and when to use?

How can I get just one rgb value in a video from ROI's center

Fisheye --> Undistorted --> Fisheye

Building opencv.js on MAC fails undefined symbol: __tls_base

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