Questions - OpenCV Q&A Forum

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2016-03-31 23:57:42 -0600 Blaze

can't get trackbar working, getting : "Type invalid conversion from 'void ()(int)' to 'cv::TrackbarCallback {aka void ()(int, void*)}' [-fpermissive]"

122

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2018-07-05 08:08:55 -0600 50sman

How to address a hole detection "problem"

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2016-10-03 03:25:52 -0600 c0dehunter

Best way to calculate speed of a Bowling Ball

1k

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2015-05-14 06:09:17 -0600 reggie

Measuring light intensity over a percentage of the image

1k

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3

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2014-07-06 10:36:08 -0600 JoeMama

Deconvolution - Theory

865

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2015-03-03 04:41:24 -0600 tejeswini

How do i run OpenCV programs using the Xeon Phi accelerators ?

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2015-04-22 09:31:58 -0600 abishk12

managing trackbar name and size

c++
opencv

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2020-09-24 07:37:13 -0600 Maxime

Why imread is reallocating data buffer

341

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1

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2017-09-20 21:10:19 -0600 big-john

How to deal with multi-channels Array

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2017-04-19 21:20:44 -0600 Junekey Jeon

Does cv::VideoCapture support both UTF-8 and traditional codepage-encoded strings?

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2016-10-05 23:00:17 -0600 Nbb

ProjectPoints not working

3dprojection

127

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2015-06-09 00:10:56 -0600 visionAwry

a reliable matching criteria for object identification in features2d

143

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2016-02-19 07:42:23 -0600 nexocv

What is the equivalent of cv::gpu::integralBuffered in OpenCV 3.x ?

844

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2015-10-19 22:19:35 -0600 Carrot_Luobo

how to get detector from trained svm classifier?

748

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2013-11-24 13:12:34 -0600 Blaz

USB camera not detected, but seen in Device Manager

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2016-04-14 01:40:08 -0600 RickOcean

SimpleBlobDetector in opencv for android

237

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2019-07-13 02:50:06 -0600 Meysam Fard

Problem with compile opencv with cmake and mingw for android with x86, mips , … architectures

869

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2016-01-16 19:35:20 -0600 Tetragramm

Crash on loading Android OpenCV application

104

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2014-11-11 10:24:56 -0600 SneakyLuke

SpeckleFilter in OpenCL or in Parallel

#OpenCL

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2015-10-29 00:55:56 -0600 Dayama Pradeep

Problem in conversion from float* to cv::mat

opencv
c++

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2019-10-02 06:54:22 -0600 huawarobot

Position estimation on tennis court

238

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2017-06-27 07:21:17 -0600 enterdis

can't build with cuda and vtk

CUDA
vtk

1k

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1

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2019-04-09 11:35:40 -0600 kzuiderveld

Consider adopting OpenCV - need memory pools/custom allocator

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2017-06-02 07:41:53 -0600 darshan

Creating 360 degree spherical panoramas with Stitching Detailed

352

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2016-01-25 11:14:18 -0600 Bilou563

Python - OpenCV stereocalibration error

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2013-09-19 05:40:04 -0600 Pedro Batista

Detecting buildings on forest aerial images (red rooftops)

185

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2017-12-28 08:56:33 -0600 LBerger

Background removal improvement

229

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2015-03-30 08:11:41 -0600 RB

the .match(..) method returns MatOfDMatch object with zero ditances?!

612

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2013-12-18 04:40:47 -0600 wy200507030

why opencv NormalBayesClassifier.train() is run very very slowly which train data is small

346

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2015-01-28 09:35:32 -0600 BillyBag2

12,357 questions

can't get trackbar working, getting : "Type invalid conversion from 'void ()(int)' to 'cv::TrackbarCallback {aka void ()(int, void*)}' [-fpermissive]"

How to address a hole detection "problem"

Best way to calculate speed of a Bowling Ball

Measuring light intensity over a percentage of the image

Deconvolution - Theory

How do i run OpenCV programs using the Xeon Phi accelerators ?

managing trackbar name and size

Why imread is reallocating data buffer

How to deal with multi-channels Array

Does cv::VideoCapture support both UTF-8 and traditional codepage-encoded strings?

ProjectPoints not working

a reliable matching criteria for object identification in features2d

What is the equivalent of cv::gpu::integralBuffered in OpenCV 3.x ?

how to get detector from trained svm classifier?

USB camera not detected, but seen in Device Manager

SimpleBlobDetector in opencv for android

Problem with compile opencv with cmake and mingw for android with x86, mips , … architectures

Crash on loading Android OpenCV application

SpeckleFilter in OpenCL or in Parallel

Problem in conversion from float* to cv::mat

Position estimation on tennis court

can't build with cuda and vtk

Consider adopting OpenCV - need memory pools/custom allocator

Creating 360 degree spherical panoramas with Stitching Detailed

Python - OpenCV stereocalibration error

Detecting buildings on forest aerial images (red rooftops)

Background removal improvement

the .match(..) method returns MatOfDMatch object with zero ditances?!

why opencv NormalBayesClassifier.train() is run very very slowly which train data is small

Detect one of N objects

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