6
votes
Accepted
How to capture images from 2 webcams parallely using raspberry pi?
import subprocess
p1 = subprocess.Popen("sudo fswebcam -d /dev/video0 -r 1280x960 image.jpg", shell=True);
p1 = subprocess.Popen("sudo fswebcam -d /dev/video0 -r 1280x960 image2.jpg", shell=True);
p1....
- 1,878
3
votes
Raspberry pi camera not showing up on a raspberry pi zero
Probably a bit late, but i had the same issue and it was impossible to find information, maybe this i'll help someone.
My Camera is almost exactly like the one in the photo, and it doesn't have a "...
- 31
2
votes
Accepted
Raspberry pi camera not showing up on a raspberry pi zero
From the troubleshooting section on the Pi Site for the Camera
Error : ENOMEM. The Camera Module is not starting up. Check all
connections again
From troubleshooting basics ..
"Is the Camera ...
- 381
2
votes
fswebcam - every other attempt results in device busy
I was having the same issue today, here are the steps I followed
First, make sure you're using a powered USB hub. We will be resetting the USB to force the OS to reload the webcam.
Start here and ...
- 21
2
votes
Accepted
--banner-colour not working on fswebcam
I believe sudo treats a plain # (hash or pound) character as a comment. You need to escape this character to make it work, like so sudo fswebcam --banner-colour \#ff0000 --png 9 -r 640x480 /var/www/...
- 5,033
2
votes
USB camera not identified
According to the log, the camera connects to the bus and then immediately disconnects. I'd say a power issue is most likely.
Disconnect all USB devices and plug just the webcam, see if it stays ...
- 27.7k
2
votes
USB Camera vs Pi Camera
I'll turn my comment into an answer: Yes, it certainly is possible. I've read through a couple guides and my personal choice would be this Github. The readme provides a pretty good tutorial on how to ...
- 6,365
1
vote
--banner-colour not working on fswebcam
Phil's solution worked for me. I wanted to change the line colour as well, so I used:
sudo fswebcam --banner-colour: \#000000 --line-colour \#ffffff --png 9 -r 640x480 /var/www/image.jpg
That worked ...
- 329
1
vote
Problem with usb camera
I had the same issue with my Logitech C905 and was nearly giving up, but then I found the solution in a post on the raspberrypi.org forum :)
https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=...
- 151
1
vote
Accepted
Problem with usb camera
Sorry for the delay posting this answer.
As suggested by @SteveRobillard I've measured the voltage at the board while taking a photo and everything was OK.
Using SIGUSR1 as suggested by @meuh did not ...
- 151
1
vote
Capture image from webcam without skipping frames everytime?
Most webcams will reinitialize after doing an operation (e.g. taking a picture). You can also observe this behavior on most mobile phones.
Best move would be to capture frames from a live video ...
- 7,116
1
vote
fswebcam: Unable to find a compatible palette format
It was a DV webcam:
apt-get install dvgrab
dvgrab - | mplayer -j
They may be modules to install or load too (e.g modprobe raw1394)
- 133
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