Questions - OpenCV Q&A Forum

3

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2020-11-27 01:22:28 -0500 Gur

How to detect lens flare /glare in images

44

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3

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2020-11-26 13:38:03 -0500 AndyK

Use Opencl to access Umat data

opencl
UMat

11

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1

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no

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2020-11-26 08:27:48 -0500 marius

OpenCV 4 and TermCriteria CV_TERMCRIT_ITER [closed]

TermCriteria

19

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1

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no

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2020-11-26 08:06:40 -0500 berak

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

11

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2020-11-26 04:51:41 -0500 DaShirley

How to reduce the time cost of the first DNN inferring with INFERENCE_ENGINE backend ?

10

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1

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2020-11-26 02:57:24 -0500 berak

Trying to use MultiBandBlender in Java

14

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2020-11-25 20:14:10 -0500 crackwitz

Tracking a large number of dots on a cloth

13

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2020-11-25 15:49:52 -0500 serge

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

22

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2020-11-25 11:55:52 -0500 crackwitz

Technique to find corresponding objects across stereo views

24

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2020-11-25 11:11:59 -0500 crackwitz

How do I read raw RGB data with Python?

python
raw

12

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2020-11-25 09:20:23 -0500 DanKutz

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

c++
opencv

20

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2020-11-24 22:57:47 -0500 Shabana

OpenCV with android not detecting image blur [closed]

22

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-2

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2020-11-24 21:33:38 -0500 gentle_rain

How can I segment text from images with complex backgrounds?

21

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2020-11-24 13:46:38 -0500 berak

heap errors without using anything from the lib

heap
error

21

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no

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2020-11-24 12:09:28 -0500 mael15

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

18

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2020-11-24 10:44:25 -0500 daniel_vdc

Unable to open or export written video

58

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1

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2020-11-24 02:58:40 -0500 berak

How to eliminate Text underline?

25

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2020-11-24 01:31:19 -0500 fightforge

Single Object Tracking in RealTime without cuda

19

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2020-11-23 05:49:59 -0500 smitra

Perspective warping using QR codes as anchors in the image

19

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no

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2020-11-23 05:31:46 -0500 Ahmed

Cut faraway objects based on depth map

java

18

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2020-11-23 04:37:45 -0500 Antrac1t

reading CPU data

20

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no

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2020-11-23 02:49:36 -0500 genzy9

Demosaicing c++

121

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2020-11-22 20:03:37 -0500 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]]

26

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2020-11-22 10:53:01 -0500 Joanne

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

20

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2020-11-22 09:17:03 -0500 sachet12345

Merging lines given end points

linesegmentdetector

37

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2020-11-21 15:35:02 -0500 Ghetto82

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

110

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-2

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2020-11-21 14:28:23 -0500 berak

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

50

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2020-11-21 10:03:42 -0500 berak

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

59

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1

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-1

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2020-11-21 09:49:33 -0500 berak

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

assertion_failed

27

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no

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2020-11-21 04:35:54 -0500 kani

30,552 questions

How to detect lens flare /glare in images

Use Opencl to access Umat data

OpenCV 4 and TermCriteria CV_TERMCRIT_ITER [closed]

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

How to reduce the time cost of the first DNN inferring with INFERENCE_ENGINE backend ?

Trying to use MultiBandBlender in Java

Tracking a large number of dots on a cloth

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

Technique to find corresponding objects across stereo views

How do I read raw RGB data with Python?

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

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

How to eliminate Text underline?

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]]

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

Merging lines given end points

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

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

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

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

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