Questions tagged [opencv]
63
questions
1
vote
0
answers
4k
views
avoid duplicate frames in ffmpeg
I have a video.mp4 which I need to convert losslessly into a sequence of images.
I used
ffmpeg -i input.mp4 $filename%05d.tiff
but I get a lot (thousands) of duplicated frames. What are they? is it ...
- 25
0
votes
1
answer
820
views
Java folder missing from openCV installation with homebrew
On my old MacBook Pro mid 2012 I was able to easily install openCV 4.5.2 with homebrew. After installation I had a java folder with a dylib file and a jar.
Now I bought a MacBook Pro M2 2022, ...
- 101
1
vote
0
answers
233
views
How can I use "mestimate" for detection of a new object from a live video feed?
I read that I can use motion vectors to detect new objects in a scene as a form of motion detection.
FFMPEG doesn't have motion detection implementation but I can use "mestimate" which uses ...
- 59
0
votes
0
answers
2k
views
FFmpeg live streaming to ffserver delay at start
I'm trying to achieve a simple camera streaming using FFMpeg and FFserver. I have two slightly different systems acting as source, both Debian OS:
the first one runs ffmpeg 3.4.8, as indicated in ...
1
vote
0
answers
710
views
cv2.cuda.getCudaEnabledDeviceCount() return 0 after visual studio build and with_cuda is set true for opencv using windows10
I want gpu to work in opencv , after CMake with_cuda true and build of (ALL_Build, Install) with no errors
I found GPU not detected
I use windows 10 I tried 3 times to build opencv , but Gpu not work ...
- 111
1
vote
0
answers
21
views
Customize Alternate Control Methods(Face recognition) to control mouseclick in macOS?
In macOS Accessibility , there is a section called Pointer Control, and in 'Alternate Control Methods', I can use Raise Eyebrows to perform a left click, So I wanna ask, Is there any way to customize ...
- 145
0
votes
1
answer
220
views
Stitching with large Parallax
I need to stitch images of 5 cameras together. The cameras are mounted on the sides of an underwater remote operated vehicle. It's basicly a cupoid with sizes of 2.1m x 1.3m x 1.85m. The cameras are ...
- 1
1
vote
0
answers
151
views
Bandwidth Concerns for 2 Webcams and an Arduino in a USB Hub
I'm working on a robotics project using an Arduino and two Logitech C920 Pro webcams.
I'm trying to keep everything nice and tidy so I thought I could connect the Arduino and the two C920s to a ...
- 11
1
vote
0
answers
344
views
Solution to open a windows server multiple GUI session for same user
I am working on a Computer vision application. which launches an application on a remote server and navigates through GUI application to check if it's working fine.
How I do it now is I installed my ...
- 111
0
votes
1
answer
959
views
Displaying UDP Multicast Rawvideo Stream
I have a problem while trying to capture the raw video over UDP.
In my setup, I stream the webcam with FFmpeg (command line) via UDP, on the client side I use Java OpenCV, the capture line; ...
- 11
1
vote
0
answers
302
views
How do I run OpenCV apps remotely (thru VNC/RDP)?
What I want to accomplish: For my coursework I require to compile and execute OpenCV programs. It's all well, I installed the OpenCV library into the remote Debian server and compiled my first test ...
- 395
0
votes
0
answers
2k
views
MacOS Mojave | PyCharm Is not allowed to access to the camera
I am trying to execute the following code:
import cv2
video_capture = cv2.VideoCapture(0)
print('Camera initialized')
ret, raw_frame = video_capture.read()
video_capture.release()
print('Bye!')
...
- 101
0
votes
0
answers
424
views
Raspbian openVINO - no module named 'cv2'
I have been configuring openVINO on my Raspberry pi 2 B, and followed these instructions.
I was successfully able to run the "object_detection_sample_ssd" demonstration, but that is where my luck ...
- 21
1
vote
0
answers
5k
views
Anaconda Prompt Stuck on "downloading and extracting packages" specifically for Wheel-0.33.4
I was trying to install opencv following instructions from https://www.learnopencv.com/install-opencv-3-and-dlib-on-windows-python-only/
It identified some packages that needed to be installed and ...
1
vote
0
answers
406
views
opnecv4.pc missing file and gocv
I am trying to make this code to work:
package main
import (
"gocv.io/x/gocv"
)
func main() {
webcam, _ := gocv.VideoCaptureDevice(0)
window := gocv.NewWindow("Hello")
img := gocv....
- 111