Questions - OpenCV Q&A Forum

984

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2020-07-30 21:35:00 -0600 Rishi Shah

VideoCapture properties not being set in Opencv c++

3k

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2020-07-30 20:58:10 -0600 Luckygg

How to build viz module with VTK 9.0.1?

vtk
viz

549

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2020-07-30 17:19:25 -0600 jimhollister

Unable to create PAGE_LOCKED or SHARED host memory using the Python binding to HostMem

python

104

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2020-07-30 08:02:47 -0600 Mordokkai

DISP_SHIFT in cv::StereoMatcher

stereo

723

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2020-07-30 06:44:28 -0600 Ulyss

how to read a YML vector in python

1k

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2020-07-30 06:03:48 -0600 berak

.set() is not working for brightness and exposure on Macbook

164

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1

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2020-07-30 03:54:46 -0600 Ulyss

why seam_finder gc_color result is changing over iteration?

127

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2020-07-29 18:07:18 -0600 Shakleton

Can anyone confirm link to recommended install for 4.4 on Windows, Python?

2k

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2020-07-29 17:30:02 -0600 sydsdk

Compiling Tracker from tutorial leads to error: ‘Tracker’ was not declared in this scope

3k

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2020-07-29 10:16:52 -0600 o.k

Finding corner points for perspective transform without clear landmarks.

409

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2020-07-29 09:16:09 -0600 ConnorM

Disparity Map vs. Triangulating Points

257

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2020-07-29 09:10:21 -0600 Adamis

LNK1104 opencv_gapi440d.lib is missing

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2020-07-29 06:12:00 -0600 DSaikrishnareddy

process has died,terminate called after throwing an instance of 'std::runtime_error' ,what(): Unsupported type of detector SURF

ros
robot

469

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2020-07-29 02:58:11 -0600 pranavg_1111

Object Detection and Avoidance:Drone [closed]

793

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2020-07-29 00:36:08 -0600 jianyn

The result obtained by cuda::dft is different from cv::dft

480

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2020-07-28 11:39:55 -0600 berak

Need explanation for the following! thanks in advance.

434

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2020-07-28 09:04:27 -0600 askl1278

Connection between pose estimation, epipolar geometry and depth map

4k

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1

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2020-07-28 06:51:26 -0600 berak

TypeError: Expected Ptr<cv::UMat> for argument 'src'

925

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2020-07-28 05:11:59 -0600 teshansj

Crosscompile OpenCV 3.2 CMAKE_MAKE_PROGRAM is not set

827

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2020-07-27 18:11:11 -0600 Brendon Costa

What options exist in OpenCV to improve the thresholding algorithm used for contour detection of fish arches on sonar images?

Thresholding

271

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2020-07-27 18:08:39 -0600 mdaccrim97

opencv_traincascade keeps core dumping [closed]

1k

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2020-07-27 13:22:35 -0600 GarhwalRifles

c++ dnn text detection cpp sample with https://github.com/MaybeShewill-CV/CRNN_Tensorflow

c++#dnn#opencv

786

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2

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1

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2020-07-27 10:27:24 -0600 kbarni

Join floating white pixels to the nearest island without closing morph?

merge
Pixels

2k

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1

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2

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2020-07-27 10:04:43 -0600 kbarni

Block until window closed

waitkey

583

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1

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2020-07-27 09:25:05 -0600 berak

Help updating 10 lines of deprecated OpenCV code in C++ [closed]

9k

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1

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2020-07-27 08:14:33 -0600 kbarni

Apply getPerspectiveTransform and warpPerspective for bird-eye view (Python).

1k

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1

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1

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2020-07-27 04:56:28 -0600 berak

NMSBoxes output with top_k parameter

322

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1

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no

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2020-07-27 02:33:01 -0600 berak

how to group clusters?

cluster

76k

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2

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no

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2020-07-26 21:21:53 -0600 chinachin

Download haarcascade_frontalface_default.xml

haarcascades

589

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2020-07-26 17:23:22 -0600 Epiphron

29,830 questions

VideoCapture properties not being set in Opencv c++

How to build viz module with VTK 9.0.1?

Unable to create PAGE_LOCKED or SHARED host memory using the Python binding to HostMem

DISP_SHIFT in cv::StereoMatcher

how to read a YML vector in python

.set() is not working for brightness and exposure on Macbook

why seam_finder gc_color result is changing over iteration?

Can anyone confirm link to recommended install for 4.4 on Windows, Python?

Compiling Tracker from tutorial leads to error: ‘Tracker’ was not declared in this scope

Finding corner points for perspective transform without clear landmarks.

Disparity Map vs. Triangulating Points

LNK1104 opencv_gapi440d.lib is missing

process has died,terminate called after throwing an instance of 'std::runtime_error' ,what(): Unsupported type of detector SURF

Object Detection and Avoidance:Drone [closed]

The result obtained by cuda::dft is different from cv::dft

Need explanation for the following! thanks in advance.

Connection between pose estimation, epipolar geometry and depth map

TypeError: Expected Ptr<cv::UMat> for argument 'src'

Crosscompile OpenCV 3.2 CMAKE_MAKE_PROGRAM is not set

What options exist in OpenCV to improve the thresholding algorithm used for contour detection of fish arches on sonar images?

opencv_traincascade keeps core dumping [closed]

c++ dnn text detection cpp sample with https://github.com/MaybeShewill-CV/CRNN_Tensorflow

Join floating white pixels to the nearest island without closing morph?

Block until window closed

Help updating 10 lines of deprecated OpenCV code in C++ [closed]

Apply getPerspectiveTransform and warpPerspective for bird-eye view (Python).

NMSBoxes output with top_k parameter

how to group clusters?

Download haarcascade_frontalface_default.xml

Comparing webpage screenshots to identify changes? [closed]

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