Questions - OpenCV Q&A Forum

508

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1

answer

2

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2020-11-26 02:57:24 -0600 berak

Trying to use MultiBandBlender in Java

796

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1

answer

no

votes

2020-11-25 20:14:10 -0600 crackwitz

Tracking a large number of dots on a cloth

1k

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1

answer

no

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2020-11-26 08:06:40 -0600 berak

Error "Assertion failed (scn == 3 || scn == 4) in cvtColor" when calculating ORB features on point cloud

410

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no

answers

-1

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2020-11-25 15:49:52 -0600 serge

How to know the exact location of an object in an image after detecting it using haar-cascade?

712

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no

answers

no

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2020-11-25 09:20:23 -0600 DanKutz

Adding subtitles from .srt file C++ [closed]

c++
opencv

3k

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1

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no

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2020-11-25 11:11:59 -0600 crackwitz

How do I read raw RGB data with Python?

python
raw

868

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1

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no

votes

2020-11-25 11:55:52 -0600 crackwitz

Technique to find corresponding objects across stereo views

761

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no

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no

votes

2020-11-24 22:57:47 -0600 Shabana

OpenCV with android not detecting image blur [closed]

380

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no

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-2

votes

2020-11-24 21:33:38 -0600 gentle_rain

How can I segment text from images with complex backgrounds?

256

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no

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no

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2020-11-24 13:46:38 -0600 berak

heap errors without using anything from the lib

heap
error

295

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no

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no

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2020-11-24 12:09:28 -0600 mael15

c++ heap error without using the library?! [closed]

696

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no

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no

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2020-11-24 10:44:25 -0600 daniel_vdc

Unable to open or export written video

3k

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1

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no

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2020-11-27 03:13:58 -0600 ieliz

Single Object Tracking in RealTime without cuda

937

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no

answers

no

votes

2020-11-23 05:49:59 -0600 smitra

Perspective warping using QR codes as anchors in the image

693

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no

answers

no

votes

2020-11-23 05:31:46 -0600 Ahmed

Cut faraway objects based on depth map

java

231

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no

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no

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2020-11-23 04:37:45 -0600 Antrac1t

reading CPU data

2k

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no

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no

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2020-11-23 02:49:36 -0600 genzy9

Demosaicing c++

1k

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1

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no

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2020-11-22 20:03:37 -0600 sunitha premjee

Didn't find class "android.view.JavaCameraView" on path: DexPathList[[zip file "==/base.apk"],nativeLibraryDirectories=[==/lib/arm64, ==/base.apk!/lib/arm64-v8a, /system/lib64]]

1k

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no

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no

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2020-11-22 09:17:03 -0600 sachet12345

Merging lines given end points

linesegmentdetector

2k

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no

answers

no

votes

2020-11-22 10:53:01 -0600 Joanne

dnn with custom layer: Assertion failed !empty() in function 'forward'

2k

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no

answers

no

votes

2020-11-21 15:35:02 -0600 Ghetto82

RaspberryPI & OpenCV + Yolo: AttributeError: module 'cv2' has no attribute 'dnn'

6k

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no

answers

-2

votes

2020-11-21 14:28:23 -0600 berak

cv2.error: OpenCV(4.4.0)error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor', 14errors module cv2

6k

views

1

answer

-1

votes

2020-11-21 09:49:33 -0600 berak

Hello, I am working on the image face recognition project. I am getting error as follows. Please guide.

assertion_failed

788

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1

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no

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2020-11-21 10:03:42 -0600 berak

Can I use OpenCV Android for commercial sales [2020]?

1k

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3

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no

votes

2020-11-26 13:38:03 -0600 AndyK

Use Opencl to access Umat data

opencl
UMat

2k

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no

answers

no

votes

2020-11-21 04:35:54 -0600 kani

How to draw contour for a document in OpenCV.js?

468

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1

answer

no

votes

2020-11-21 02:13:53 -0600 berak

Result of My Cascade Training is Bad

opencv#traincascade

1k

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1

answer

no

votes

2020-11-20 18:53:46 -0600 sjhalayka

About Using OpenCV in Unreal Engine 4 [closed]

888

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1

answer

no

votes

2020-11-19 20:13:19 -0600 crackwitz

Is there a way to select a specific web cam from USB hub on a Mac or Windows?

426

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no

answers

-1

votes

2020-11-19 12:50:56 -0600 Handa

29,830 questions

Trying to use MultiBandBlender in Java

Tracking a large number of dots on a cloth

Error "Assertion failed (scn == 3 || scn == 4) in cvtColor" when calculating ORB features on point cloud

How to know the exact location of an object in an image after detecting it using haar-cascade?

Adding subtitles from .srt file C++ [closed]

How do I read raw RGB data with Python?

Technique to find corresponding objects across stereo views

OpenCV with android not detecting image blur [closed]

How can I segment text from images with complex backgrounds?

heap errors without using anything from the lib

c++ heap error without using the library?! [closed]

Unable to open or export written video

Single Object Tracking in RealTime without cuda

Perspective warping using QR codes as anchors in the image

Cut faraway objects based on depth map

reading CPU data

Demosaicing c++

Didn't find class "android.view.JavaCameraView" on path: DexPathList[[zip file "==/base.apk"],nativeLibraryDirectories=[==/lib/arm64, ==/base.apk!/lib/arm64-v8a, /system/lib64]]

Merging lines given end points

dnn with custom layer: Assertion failed !empty() in function 'forward'

RaspberryPI & OpenCV + Yolo: AttributeError: module 'cv2' has no attribute 'dnn'

cv2.error: OpenCV(4.4.0)error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor', 14errors module cv2

Hello, I am working on the image face recognition project. I am getting error as follows. Please guide.

Can I use OpenCV Android for commercial sales [2020]?

Use Opencl to access Umat data

How to draw contour for a document in OpenCV.js?

Result of My Cascade Training is Bad

About Using OpenCV in Unreal Engine 4 [closed]

Is there a way to select a specific web cam from USB hub on a Mac or Windows?

Creating a region of interest in java

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