Questions - OpenCV Q&A Forum

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2019-01-07 11:09:29 -0600 berak

I'm trying to run a face recognition program in python using OpenCV but I'm getting the following error which I'm unable to resolve. Any help is greatly appreciated

FaceRecognizer

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answer

no

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2019-01-07 07:12:58 -0600 faith_wang

sift detectandcompute get different size keypoint and descriptor

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2

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4

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2019-01-07 15:59:12 -0600 sjhalayka

How to detect peaks on histograms?

207

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1

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no

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2019-01-07 04:16:38 -0600 berak

Query regarding Canny Edge Detector - openCv

canny

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1

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no

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2019-01-07 04:45:00 -0600 berak

python: how to compute the gray level histogram features as mentioned in the paper

516

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2

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no

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2019-01-07 07:46:18 -0600 supra56

Is there any way to recognize the camera device using HDMI cable(without USB)?

339

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no

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2019-01-06 22:15:46 -0600 perrywu

cuda::DescriptorMatcher::knnMatch runs in differ

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2019-01-07 07:54:47 -0600 supra56

Why do overlapping blob detection key points occur? [closed]

BlobDetection

269

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2019-01-07 07:57:02 -0600 supra56

What does minDistBetweenBlobs actually do?

BlobDetection

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2019-01-07 01:43:33 -0600 berak

How can I draw the x,y, and z axis of a aruco marker and know the distance and the rotation relative to the camera?

409

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no

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2019-01-07 04:02:31 -0600 cudawarped

Opencv with cuda build file too large 916mb

cmake
CUDA

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no

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2019-01-06 14:05:32 -0600 OpenCVNewUser

Stuck on tutorial

tutorials

426

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1

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no

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2019-01-06 14:05:50 -0600 flakes

cmake options for opencv, what happen if I uncheck

cmake

259

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1

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no

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2019-01-06 10:30:25 -0600 berak

usage of detect_markers.exe

246

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no

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2019-01-06 10:46:57 -0600 LBerger

i am unable to solve this plz help as soon as possible the cascade and the code is in the same file but i still get this error

1k

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1

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2019-01-06 08:13:07 -0600 berak

error in cmake gui while configuring opencv 4 extra modules path [closed]

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2019-01-06 11:02:49 -0600 berak

keras to tensorflow to opencv dnn

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3

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2019-01-06 03:38:15 -0600 La bla bla

SGBM pixAdd pixSub

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2019-01-06 02:38:09 -0600 berak

Segmentation fault

c++
opencv

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2019-01-06 00:09:08 -0600 harsh_22

malloc(): memory corruption:

758

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2019-01-06 02:36:45 -0600 berak

unsovled externals errors occur when running detect_markers.cpp [closed]

c++
aruco

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2019-01-05 16:22:00 -0600 dino

How to find if an object is in the centre of the frame

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2019-01-06 05:49:23 -0600 LBerger

How do I save a video with background subtraction applied

322

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2019-01-05 10:11:41 -0600 wpadka

Haar cascade classifier - Multiple detecting same object

434

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2019-01-05 10:37:21 -0600 berak

Issues running dnn openpose sample code with kinect v2

206

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2019-01-04 18:42:35 -0600 czjczjczj1

Cannot run code for camera calibration [closed]

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-1

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2019-01-04 14:49:25 -0600 LBerger

identifier "calibrateCameraRO" is undefined [closed]

777

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-1

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2019-01-04 12:00:19 -0600 DRZN93

Template Matching - Template image is not there [closed]

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no

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2019-01-04 09:48:15 -0600 berak

CvException [org.opencv.core.CvException: cv::Exception] [closed]

200

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no

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no

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2019-01-04 06:55:23 -0600 aniketpatidar

29,830 questions

I'm trying to run a face recognition program in python using OpenCV but I'm getting the following error which I'm unable to resolve. Any help is greatly appreciated

sift detectandcompute get different size keypoint and descriptor

How to detect peaks on histograms?

Query regarding Canny Edge Detector - openCv

python: how to compute the gray level histogram features as mentioned in the paper

Is there any way to recognize the camera device using HDMI cable(without USB)?

cuda::DescriptorMatcher::knnMatch runs in differ

Why do overlapping blob detection key points occur? [closed]

What does minDistBetweenBlobs actually do?

How can I draw the x,y, and z axis of a aruco marker and know the distance and the rotation relative to the camera?

Opencv with cuda build file too large 916mb

Stuck on tutorial

cmake options for opencv, what happen if I uncheck

usage of detect_markers.exe

i am unable to solve this plz help as soon as possible the cascade and the code is in the same file but i still get this error

error in cmake gui while configuring opencv 4 extra modules path [closed]

keras to tensorflow to opencv dnn

SGBM pixAdd pixSub

Segmentation fault

malloc(): memory corruption:

unsovled externals errors occur when running detect_markers.cpp [closed]

How to find if an object is in the centre of the frame

How do I save a video with background subtraction applied

Haar cascade classifier - Multiple detecting same object

Issues running dnn openpose sample code with kinect v2

Cannot run code for camera calibration [closed]

identifier "calibrateCameraRO" is undefined [closed]

Template Matching - Template image is not there [closed]

CvException [org.opencv.core.CvException: cv::Exception] [closed]

how to match two images [closed]

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