Questions tagged [webcam]

A webcam is a device that records video and then uploads that video to a computer.

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Error opening USB Cam with OpenCV4: GStreamer-CRITICAL **: gst_element_get_state: assertion 'GST_IS_ELEMENT (element)' failed

After installing OpenCV4.0 on my RPi, i tried a simple script below with a Logitech USB Cam (720p) but at "cam = cv2.VideoCapture(0)" it gives me an error "(python:num process): GStreamer-CRITICAL **: ...
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24 views

The first picture I take with a USB webcam as soon as I connect it looks good, but the following ones are dark

I am experiencing the following issue: I connect a USB webcam (Logitech Quickcam Pro 4000) to my Raspberry Pi 3 B+ and take a picture using fswebcam and looks good. Sometimes I take a second picture,...
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25 views

How to connect/link two raspberry pies for video precessing?

i am fairly new to raspberry pi platform so this question may be too basic. I am working on a project where i need at least 2 camera modules for simultaneous video recording and processing and taking ...
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1answer
73 views

Running pygame and webcam works from command line not when using a service

I am writing a small program for a Museum display that captures a still from a webcam, displays it on screen, waits a few seconds and takes another, loop forever. This all works fine from the command ...
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163 views

Live video streaming over bluetooth

I'm currently making a little project, and i need my Raspberry Pi 3b to transmit an USB webcam stream trough Bluetooth to display to an Android smartphone or any other portable device (like another ...
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345 views

PS3 Eye USB Camera Not Detected - Raspbian Stretch

After updating to Raspbian Stretch (kernel 4.14.90-v7+), my Playstation 3 Eye camera is no longer detected on any of the three Pi3 Model Bs that I have. lsusb does not report the device and dmesg ...
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1answer
327 views

Raspberry Pi Zero as webcam

I read some case, like using dwc2 and g_webcam in /boot/config and cmdline. but hard to understand and doesn't work. and can't find a tutorial, there are some tutorials only about serial and ethernet. ...
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912 views

PS3 eye's 4ch microphone with the Raspberry Pi

Recently I have been trying to get the 4ch microphone on the sony playstation 3 eye to work with my Raspberry Pi 3B (running the latest OS of raspian-stretch to date (2018-06-27 version) as a part of ...
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1k views

Getting UV4L working with USB camera

I have installed the UV4L suite of software onto RPi3 with Jessie. I am using a USB cam (Logitech C170) rather than RPi cam. I have been struggling to get this working reliably. Initially I could ...
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231 views

c310 logitech webcam not closing properly in pygame code

I'm accessing my c310 logitech webcam in python with pygame in an attempt to take pictures and save them. My final goal is to take a new picture every minute for 24 hours to make a timelapse. Here is ...
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736 views

RTSP Webcam stream video+audio

Im trying to stream audio and video using cvlc from a Logitech C920 using RTSP, I have got video to work but not audio. cvlc --sout=#rtp{sdp=rtsp://:8554/} 'v4l2:///dev/video0:chroma=H264:width=1280:...
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3answers
4k views

Motion: Unable to open device

I can access the web interface but get a grey screen then saying "Unable to open device". I tried: pi@octopi:~ $ ls /dev/video* pi@octopi:~ $ /dev/video0 I can also take pictures with fswebcam so ...
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146 views

Python Google drive upload not working continuously

I am trying to build an auto image Google drive up-loader with raspberry pi and a web-cam but the python script I wrote after executing once properly doesn't seem to work if I execute it again ...
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2answers
1k views

Accessing Cam Web Interface over a VPN

I have 2 Raspbery Pi's (B+) set up in 2 different locations: RPi 1 is at home. It is connected to the internet and port forwarding is allowed. I am able to SSH into it from another location. I have ...
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1k views

how to close fswebcam after using it in python

I used fswebcam in python together with os.system() but i do not know how to close it after using it is in a loop that is why I want to close it like the picamera.close()
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227 views

Writing a JPEG file using libjpeg [closed]

On my pi 3, I receive frames via logitech c270 camera using libuvc and I want those frames to be written in individual JPEG files. The camera itself compresses the frames in MJPEG format. I'm stuck ...
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715 views

'Motion' port not responding - “This site can't be reached”

I've set up my Pi as a web server and I am using RaspCTL as the dynamic DNS. I can access my site via [mysite].raspctl.com from my home network and from an external network. Great! I'm also trying ...
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1answer
1k views

Feature detection for embedded platform OpenCV [closed]

I'm trying to do object recognition in an embedded environment, and for this I'm using Raspberry Pi (Specifically version 2). I'm using OpenCV Library and as of now I'm using feature detection ...
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0answers
6k views

Best FFMPEG configuration for recording Video+Audio with RaspberryPi and USB WebCam

I've spent so much time trying to figure out how this FFMPEG and their libraries work :( I have a RaspberryPi 2B and a Logitech USB Webcam. Here is the input from FFMPEG list from my /dev/video0: ...
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437 views

Unmount USB Camera

I'm working in a Python app with opencv and a USB camera. Sometimes the camera driver throws an exception: OpenCV Error: Assertion failed (scn == 3 || scn == 4) in cvtColor, file /home/pi/opencv-2....
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667 views

Multiple webcams - cannot open in openCV & corrupted image

I've connected four USB webcams via well powered USB hub to RasPi2. I want to use them in openCV. So I setup a simple program, where I opened the cameras using cvCaptureFromCAM, captured a cv::Mat and ...
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306 views

Webcam doesn't work on Raspberry Pi VIDIOC-QUERYMENU: Invalid Argument

So I wrote an image processing program in Python on my windows computer and it works fine there, but when I try to run it on the Raspberry Pi I get VIDIOC-QUERYMENU: Invalid Argument a bunch of times. ...
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1k views

mplayer doen't show webcam

i can't display images from my webcam using mplayer i followed this article: monitor a webcam but i got this error: pi@raspberrypi ~ $ mplayer tv:///dev/video0 MPlayer svn r34540 (Raspbian), built ...
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973 views

Using motionPie: I'm stuck trying to install a camera driver

I'm trying to set up a raspberry pi for these tasks: streaming video over a network listening to commands (I'm not yet sure how to do that) over network parse commands and control a slave connected ...
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0answers
845 views

raspberry Pi and processing problem with Camera Capture

I installed Processing 2.2.1 (linux) on the RasPi (running Debian Wheezy) to connect a USB-Webcam and capture video stream with the standart processing.video* library. When I try to run the program (...
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2answers
3k views

USB webcam showing green screen

I am trying to get my usb webcam working with pi, but apparently there is a problem with coding or driver, as the camera output is showing only green screen with some crazy pixels at the top (as the ...
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0answers
2k views

Logitech QuickCam Messenger Communicator webcam drivers

Im trying to figure out if I can get the logitech messenger communicator webcam working with the Pi. (no, its not on the supported software list) In searching for drivers, I came across this link ...
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2answers
4k views

Webcam input / display using gstreamer

I have connected Logitech C170 webcam to one of the USB port of raspi and I can confirm it is working using the motion utility. I have also installed gstreamer (sudo apt-get install -y gstreamer1.0-...
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3answers
5k views

Raspberry Pi live stream through webcam to android phone

I am trying to broadcast video from web cam connect with Raspberry Pi to Android app, for that I used 'motion', by this it can stream video over local network only, using http://RPi_addr:port but now ...
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4answers
5k views

What do I need to setup in order to push a video stream to the web

I'm interested in using a Raspberry Pi and some webcam to stream video to the web. First, I would need to know how to setup the webcam. Second I would like to know if it is possible to push a ...
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2answers
2k views

USB camera compatibility

When I connect my camera to Pi and run the command lsusb, I get this output: Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root ...
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1answer
2k views

Raw video dump to file using no encoding with usb webcam

I would like to dump raw video (and hardware encoded mjpeg) to be dumped into a file using usb webcam. On following command, v4l2-ctl --list-formats-ext ioctl: VIDIOC_ENUM_FMT Index : ...
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1answer
231 views

Raspberry Pi Surveilance Cam online

i've been browsing for days to find how to access live stream of my picam from internet (outside my local network). For stream within local network i already success access the cam from my browser. ...
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2answers
6k views

Raspberry pi with webcam, motion, and FTP

I have a webcam connected to my Raspberry Pi, and I am running Motion to make pictures and upload this to an FTP server. With my current configuration, wput/Motion uploads ~3-10 pictures/second, ...
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1answer
359 views

Webcams without external power

With a resolution no higher than 640x480, what is the frame rate I should expect for streaming? Are there any cameras in the 10-50 dollar range that will get me 20-25 FPS, possibly with some manual ...
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1answer
148 views

Unable to connect access IP webcam

I'm trying to access my phone camera using IP Webcam android app. I'm programming Pi using my laptop via Remote Desktop Connection with a static IP set for Pi. Also I tried to stream webcam from Pi's ...
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1answer
363 views

Raspberry Pi as HDMI to USB converter for HD Camcorder

I know this is a long shot, but is it possible to use the HDMI port of the Raspberry Pi as an input from an HD camcorder, and use a USB port as an output for another device (like a laptop) to use as a ...
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1answer
753 views

RPi-Cam-Web-Interface - Problem Loading Page when IP Address is entered

I have spent most of the day trying to install RPi-Cam-Web-Interface onto my device with no success. I have followed the instructions here but once the installer has finished (using the defaults) I am ...
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1answer
2k views

fswebcam: Unable to find a compatible palette format

I am unable to use my webcam. Running fswebcam out.png, I get the error: Unable to find a compatible palette format. What would be the origin of the error and how to fix it? It can be a missing ...
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3answers
2k views

Motion webcam resolution limit

I have a Pi Zero running Raspbian Jessie (up to date) and Motion with a Logitech C120 camera. The camera supports 320x240 and 640x480 When I configure Motion to record 640x480 the output is jittery ...
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1answer
2k views

Wrong colors in webcam picture

I have Raspberry Pi 3 and I'm using latest version of Raspbian. I have Logitech C910 Webcam and I have plugged the webcam into USB hub with external power. (although the webcam seems to work just ...
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2answers
532 views

Picamera Python Library Alternatives

I'm looking for something like picamera python library, for USB webcams. Is there a python library that allows for image capture, and streaming for USB web-cameras?
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1answer
965 views

Can't decode barcode using Zbar

Installed Zbar with sudo apt-get install python-zbar. I'm trying to decode barcode using example povided with library: !/usr/bin/python from sys import argv import zbar # create a Processor proc = ...
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1answer
1k views

How to stream video with RPi 3 and a common webcam?

I have a RPi 3 with the latest Raspbian and a simple webcam. I would like to stream the video through it using Pi IP. I tried to follow this tutorial: http://pimylifeup.com/raspberry-pi-webcam-server/ ...
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1answer
2k views

motion.conf missing webcam

Last night I tried to get motion running on my pi for a live stream from a webcam plugged into it. I read through multiple tutorials, and they all said the same things for the most part. The problem ...
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1answer
728 views

Raspberry Pi with WLAN adapter breaks WiFi network

I'm trying to build a Pi-powered wireless webcam, but I'm running into a problem where, after the Pi has been running for a while, it somehow breaks the wireless network. When this happens, both the ...
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1answer
738 views

Connect usb camera to gpio pins

Is there a way to connect usb camera to gpio pins? The reason doing so is the inconvenient location of usb ports, hence my custom box for raspberry pi needs to be expanded just for usb connectors. I ...
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1answer
2k views

how to use Pi-cam module as webcam

I have a Pi-Cam module for my raspberry pi and I want to make it behave like a webcam. Something Google could use for video chatting. Is there a driver I could download or do I have to make one myself?...
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1answer
793 views

Web Cam server using motion daemon video not crisp

I have interfaced a web cam with rasberry pi and stream live video using motion daemon. I want the frame rate to increase and the video to be crisp. Is there any possible solution?
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3answers
3k views

Send camera image to cloud for more open streaming?

What I'm looking for: I have a Pi with a Pi-Cam. I want to be able to plug it in at work, or in a hotel room and have it upload what its seeing to a server that I can then connect to from anywhere. ...