Questions - OpenCV Q&A Forum

903

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2

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2013-06-15 10:45:41 -0600 RaulPL

error using BRISK + GridAdaptedFeatureDetector

198

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2

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2014-01-20 04:23:48 -0600 igi

opencv_traincascade (neg)image reader parallelization

opencv_traincascade

324

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no

answers

2

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2018-01-23 01:18:20 -0600 deekshith_mr95

crash while building with ffmpeg and contrib in raspberry pi 3 model B(debian)

1k

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2

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2017-10-16 15:50:14 -0600 ossyaritoori

Why self compiled Opencv is slower than apt-get package?

1k

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2

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2013-07-02 04:54:56 -0600 vinayverma

Traincascade with MultiThreading (TBB) -- Opencv-2.4.5

3k

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2

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2013-07-31 21:41:30 -0600 Libbux

OpenCV and MPI (Open MPI)

1k

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1

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2013-07-07 05:51:14 -0600 NikolasE

Missing Icons in Highgui Toolbar and wrong color values

highgui

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1

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2013-10-14 11:05:04 -0600 Antonio

Tilted integral image + other general considerations on integral image

Imgproc

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1

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2013-12-05 13:16:57 -0600 talcat

VideoWriter failure: "Gstreamer Opencv backend does not support this codec actually"

691

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1

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2014-02-25 08:38:39 -0600 wl2776

stereoSGBM on OpenCL in OpenCV 3.0.0

153

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1

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2014-08-15 00:47:46 -0600 brain_vision

the opencv 2.4.9 test failed with Video_calcOpticalFlowDual_TVL1.Regression

opencv_test_video

307

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1

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2014-10-08 20:11:52 -0600 statcomp

OpenCV_Perf_GPU.exe makes GPU crashed (Resolved)

605

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1

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2014-10-15 22:32:43 -0600 Apollo Juice

OpenCV 2.4.10 fails to build on Debian Jessie

2k

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1

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2015-01-11 23:06:27 -0600 svanschalkwyk

Ubuntu 14.10, GCC 4.8 etc. CUDA 6.5: OpenCV Error: No GPU support (The library is compiled without CUDA support) in mallocPitch, file /build/buildd/opencv-2.4

3k

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1

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2015-02-11 06:53:49 -0600 margaridamfo.gomes

Can't write .mp4 files - Could not open codec 'libx264': Unspecified error

3k

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1

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2015-05-09 01:58:49 -0600 berak

package not found - issue building libdetection_based_tracker.so

7k

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1

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2015-06-09 04:13:18 -0600 neodreamer

How to build opencv_world and opencv_contrib_world with VTK

opencv
world

283

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1

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2015-06-23 07:25:16 -0600 kosign

Error during compilation of OpenCV 3.0 with IPP and MinGW

1k

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1

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2015-07-11 16:22:05 -0600 miro

Build problem on windows x64 with java library

220

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1

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2017-02-02 12:52:33 -0600 lovaj

Intel Parallel Studio for improving OpenCV

3k

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1

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2017-10-16 14:51:42 -0600 Ajay

What compiler flags make opencv even more faster?

612

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1

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2018-12-04 18:16:34 -0600 ars0

Could not generate .wasm file when building opencv.js

8k

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1

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2016-04-28 12:56:10 -0600 Mohammed Eliass

error while re-build opencv-3.1.0 with extra modules "opencv_contrib" ?

945

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1

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2017-05-17 18:48:51 -0600 philboske

Some resolutions cause segmentation faults in DISOpticalFlow()

378

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1

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2017-08-24 23:37:15 -0600 Ashokbugude

libopencv_java3 library not found

1k

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1

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2018-12-04 07:51:18 -0600 Zana Zakaryaie Nejad

What is HAL exactly? Whats the difference between HAL and T-API?

3k

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1

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2018-01-26 04:20:59 -0600 berak

disable openCL for opencv 3.4

opencl

1k

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no

answers

1

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2020-08-08 19:02:01 -0600 PKGosal

error importing cv2 in python3.6 but it works for python2.7

opencvpython

331

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no

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1

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2017-12-28 09:25:56 -0600 Boogaloo

TBB not being used for CMat memory copy, just IPP

445

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1

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2015-10-13 06:16:25 -0600 Kozuch

173 questions

error using BRISK + GridAdaptedFeatureDetector

opencv_traincascade (neg)image reader parallelization

crash while building with ffmpeg and contrib in raspberry pi 3 model B(debian)

Why self compiled Opencv is slower than apt-get package?

Traincascade with MultiThreading (TBB) -- Opencv-2.4.5

OpenCV and MPI (Open MPI)

Missing Icons in Highgui Toolbar and wrong color values

Tilted integral image + other general considerations on integral image

VideoWriter failure: "Gstreamer Opencv backend does not support this codec actually"

stereoSGBM on OpenCL in OpenCV 3.0.0

the opencv 2.4.9 test failed with Video_calcOpticalFlowDual_TVL1.Regression

OpenCV_Perf_GPU.exe makes GPU crashed (Resolved)

OpenCV 2.4.10 fails to build on Debian Jessie

Ubuntu 14.10, GCC 4.8 etc. CUDA 6.5: OpenCV Error: No GPU support (The library is compiled without CUDA support) in mallocPitch, file /build/buildd/opencv-2.4

Can't write .mp4 files - Could not open codec 'libx264': Unspecified error

package not found - issue building libdetection_based_tracker.so

How to build opencv_world and opencv_contrib_world with VTK

Error during compilation of OpenCV 3.0 with IPP and MinGW

Build problem on windows x64 with java library

Intel Parallel Studio for improving OpenCV

What compiler flags make opencv even more faster?

Could not generate .wasm file when building opencv.js

error while re-build opencv-3.1.0 with extra modules "opencv_contrib" ?

Some resolutions cause segmentation faults in DISOpticalFlow()

libopencv_java3 library not found

What is HAL exactly? Whats the difference between HAL and T-API?

disable openCL for opencv 3.4

error importing cv2 in python3.6 but it works for python2.7

TBB not being used for CMat memory copy, just IPP

Multithreading not effective for stereo vision with small images

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