Questions - OpenCV Q&A Forum

2k

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1

answer

1

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2020-12-03 07:02:10 -0600 fadeto404

Pixel-wise matrix multiplication

2k

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1

answer

1

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2020-12-03 07:37:47 -0600 supra56

I am create a rectangle box in video stream using python. how to apply face detection in rectangular box inside only and don't need out of the rectangular box detect face

opencv-python

1k

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1

answer

no

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2020-12-03 09:34:06 -0600 berak

Real-time webcam stream very slow with pixel manipulation

4k

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1

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no

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2020-12-03 11:11:26 -0600 crackwitz

Convert a Video.mp4 in a 2D Matrix where each row represents a frame

1k

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1

answer

no

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2020-12-03 11:36:09 -0600 crackwitz

Training for roof tile detection

object_recognition

895

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1

answer

1

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2020-12-03 16:31:28 -0600 crackwitz

How to discover the input and output format of a cv::dnn::Net?

562

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no

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no

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2020-12-04 06:51:01 -0600 berak

i am creating a dataset for real time face recognition using python. i want it should intimate if the image already available in dataset. how to implement in opencv?

opencv-python

1k

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no

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no

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2020-12-04 09:17:00 -0600 fafafafa

pre-built OpenCv with extra modules for java

java
opencv

1k

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1

answer

no

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2020-12-05 03:42:42 -0600 sturkmen

installing 3.4.12 for ubuntu 18.04 LTS (install from source) for yolov4

installation-fails

355

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1

answer

no

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2020-12-05 04:28:02 -0600 berak

Opencv based annotation is open

13k

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1

answer

1

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2020-12-05 05:14:19 -0600 Eduardo

historical performance test cast data in build pipeline?

13k

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no

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no

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2020-12-05 08:45:02 -0600 fafafafa

Error building opencv with extra modules in Visual Studio 2013

opencv
java

18k

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1

answer

no

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2020-12-06 07:38:57 -0600 Wilan

Reading and Writing Videos: Python on GPU with CUDA - VideoCapture and VideoWriter

Video

12k

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no

answers

no

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2020-12-06 08:22:42 -0600 sigmoid90

Problem with building pose Mat from rotation and translation matrices

1k

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no

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no

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2020-12-07 02:08:05 -0600 AndrewM

How can I track the disappearance of a TV logo in a certain area in a frame (ROI)?

video_processing

13k

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2

answers

no

votes

2020-12-07 08:03:52 -0600 kbarni

getting out of arguments

argument

15k

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1

answer

1

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2020-12-07 08:58:34 -0600 hammockman

cv::dnn::blobFromImage() works in python but fails in c++

13k

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no

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no

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2020-12-07 12:20:58 -0600 coldheat

tvec and coordinate systems q

13k

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no

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no

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2020-12-07 14:26:14 -0600 fafafafa

errors when building opencv 4.5.0 wit extra modules using Mingw [closed]

opencv
java

42k

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no

answers

-1

votes

2020-12-08 03:23:09 -0600 revathi

I am creating web application for face recognition using python flask app. I am already create static dataset. I need the text box to enter the name of the person after that capture image and it will store in to the dataset. [closed]

off-topic

13k

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1

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no

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2020-12-08 09:54:18 -0600 ConnorM

Triangulation with Ground Plane as Origin

12k

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no

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no

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2020-12-08 11:05:40 -0600 PGTART

stitcher advanced api everything get wrapped arround

image-stitching

16k

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no

answers

no

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2020-12-09 06:39:18 -0600 ryan227

Darknet makefile error when opencv=1, ubuntu 18.04

darknet

13k

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1

answer

no

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2020-12-09 11:15:18 -0600 crackwitz

How to avoid potential noise after Canny?

video-processing

20k

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1

answer

no

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2020-12-10 13:16:05 -0600 crackwitz

Lot of Delay with my RTSP cam with OpenCV on Python

cv#opencv#python

13k

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3

answers

no

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2020-12-11 05:59:55 -0600 sturkmen

Optimizations on opencv hog implementation(interp_weight, gaussian)

18k

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2

answers

1

vote

2020-12-12 00:13:23 -0600 jacubit

Opencv and OAK on Mac with new chip M1

12k

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no

answers

no

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2020-12-12 03:57:00 -0600 elliotwoods

binary calibration pattern with XY recoverable features

13k

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no

answers

no

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2020-12-12 12:10:12 -0600 DjDylex

recover pose scale

12k

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no

answers

no

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2020-12-14 19:41:25 -0600 joaocandre

29,830 questions

Pixel-wise matrix multiplication

I am create a rectangle box in video stream using python. how to apply face detection in rectangular box inside only and don't need out of the rectangular box detect face

Real-time webcam stream very slow with pixel manipulation

Convert a Video.mp4 in a 2D Matrix where each row represents a frame

Training for roof tile detection

How to discover the input and output format of a cv::dnn::Net?

i am creating a dataset for real time face recognition using python. i want it should intimate if the image already available in dataset. how to implement in opencv?

pre-built OpenCv with extra modules for java

installing 3.4.12 for ubuntu 18.04 LTS (install from source) for yolov4

Opencv based annotation is open

historical performance test cast data in build pipeline?

Error building opencv with extra modules in Visual Studio 2013

Reading and Writing Videos: Python on GPU with CUDA - VideoCapture and VideoWriter

Problem with building pose Mat from rotation and translation matrices

How can I track the disappearance of a TV logo in a certain area in a frame (ROI)?

getting out of arguments

cv::dnn::blobFromImage() works in python but fails in c++

tvec and coordinate systems q

errors when building opencv 4.5.0 wit extra modules using Mingw [closed]

I am creating web application for face recognition using python flask app. I am already create static dataset. I need the text box to enter the name of the person after that capture image and it will store in to the dataset. [closed]

Triangulation with Ground Plane as Origin

stitcher advanced api everything get wrapped arround

Darknet makefile error when opencv=1, ubuntu 18.04

How to avoid potential noise after Canny?

Lot of Delay with my RTSP cam with OpenCV on Python

Optimizations on opencv hog implementation(interp_weight, gaussian)

Opencv and OAK on Mac with new chip M1

binary calibration pattern with XY recoverable features

recover pose scale

How to find surfance orientation (relative to camera) from single depth image?

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