Questions tagged [camera]
Use the Camera tag for any questions related to how to use a camera or webcam with the Raspberry Pi.
106
questions
58
votes
8
answers
224k
views
How can I stream H.264 video from the Raspberry Pi camera module via a web server?
So I got the Raspberry Camera today and got stills working fine.
Capture an image in JPEG format:
raspistill -o image.jpg
Capture a 5-second video in H.264 format:
raspivid -o video.h264
I do not ...
116
votes
15
answers
533k
views
How to stream video from Raspberry Pi camera and watch it live
I am new to the Raspberry Pi and even new to the Raspberry Pi camera. I have seen a lot of tutorials online for the Raspberry Pi camera but have yet to find on that lets me stream straight from the ...
23
votes
4
answers
72k
views
Modern way to stream H.264 from the Raspberry Cam
I got the Pi B+ and the Pi camera and am now trying to find the most efficient (low CPU) and lowest-latency configuration to stream H.264 encoded video from the camera to my home server.
I've read ...
8
votes
3
answers
20k
views
How to use raspistill on Ubuntu
I have Ubuntu 14 installed on my Raspberry Pi 2, and I'm trying to access the camera, but all the instructions assume raspistill is available, but that only seems to be compiled for Raspbian. How do ...
6
votes
4
answers
11k
views
How to control multiple raspberry pi's at once over ethernet?
My mac is connected to four raspberry pi's using a desktop switch. My mac has ip 192.168.1.90 and my RPi's 192.168.1.11, 192.168.1.12, 192.168.1.13, 192.168.1.14. I can control them via ssh using the ...
3
votes
1
answer
2k
views
Why does PiCamera take so long to capture?
I'd like to capture an image at a specified shutter speed and ISO, and write it to disk. I thought that'd be pretty straightforward but... apparently not? In searching, I found people complaining ...
1
vote
1
answer
2k
views
Video Streaming from raspberry zero to an external server
I'm aware of streaming live video using on the RaspberryPi itself as a server. But is there a way to send the video from the raspicam to an external web-streamer so that if I have multiple people ...
8
votes
1
answer
2k
views
Raspberry Pi Camera - When is it ready for next frame
When using apis like the C++ or raspicam api, you poll the camera with a grab(), or similar, method. When a frame is ready, the method returns. Is there a way of checking if the camera is ready ...
4
votes
4
answers
4k
views
Is it possible to trigger 10 (or 100) Raspberries to take photos at the same time using WiFi?
Can a system consisting of 10x Raspberry Pi's, 10x RPi Camera Modules + WiFi dongles be reliably & consistently synchronized over WiFi to take photos at the same time?
Or are radio triggers a ...
7
votes
1
answer
5k
views
Take picam image while motion is running
I am running motion on my raspberry pi using the V4L2 driver. While motion is running, I can't take a snapshot using raspistill. Is is possible to take a snapshot of the virtual V4L2 device using ...
4
votes
1
answer
27k
views
Getting image data from raspberry pi camera module in OpenCV with Python
I am working on a project where I need to use opencv to get image data in python from the pi camera module. I have seen the tutorials on how to do this with C++ but not too much in python. I did find ...
4
votes
5
answers
6k
views
Raspberry Pi camera randomly freezes / crashes SoC
I use my Raspbery PI model B for capturing images for a timelapse. I capture an image every 30 seconds (roughly) using the build in raspistill command within a simple bash script seen below:
#!/bin/...
2
votes
1
answer
942
views
Capture image when camera is not covered
I am very new to R Pi, but I know my Python.
I am working on a project where I have an always running camera, that is kept in dark. What I need to do is to capture an image when there is light. (lets ...
23
votes
2
answers
65k
views
How to stream raspivid to Linux and OSX using GStreamer, VLC or Netcat?
How can I stream video stream to Linux or OS X using raspivid and either VLC, GStreamer or Netcat?
38
votes
8
answers
95k
views
RasPi Camera Board and Motion
I just got my Camera Board and a Model A Raspberry Pi to use as a security camera for my house. I had been using Motion with a Logitech C170 USB camera on my Model B board and it worked great except ...
14
votes
2
answers
25k
views
Can I record a 24 hour video on the Raspberry Pi with camera module?
Given that I have an SD card with sufficient capacity, is it theoretically possible to record a 24 hour video with a camera module or is the recording duration limited? Has anyone tried this?
Do you ...
7
votes
2
answers
25k
views
How do I make my Raspberry Pi act as a wireless USB controller?
I am trying to control my Canon 550D with the EOS Utility (on my Mac). In theory, this is what I am looking for:
The RPi plugs into the 550D and is connected to a LAN. My Mac is on the same LAN, and ...
20
votes
4
answers
17k
views
Raspistill slow to trigger?
I'm trying to trigger "many" raspberries together, while using raspistill is only for testing, i'm wondering why taking a picture is so slow, i made a test and, at the same time as i hit enter on this ...
28
votes
2
answers
4k
views
Can I use a USB webcam?
Is it possible to use a standard USB webcam with the RPi, or is there a specific peripheral that should be used?
I would like to use RPi's to stream images from webcams to the net.
8
votes
5
answers
11k
views
Camera problems: green tint and long delays after snapshot
Having a few problems with the standard camera board.
Images are heavily green-tinted: sample
Anytime I try to use the raspistill -fp option, it takes about 20 seconds after the snapshot is taken for ...
7
votes
1
answer
4k
views
Uncompressed Video recording
Picamera records by default at 1920*1080 resolution (Full HD) and it is very clear.
But all the videos are compressed using h264 (MPEG-4) codec.
Can I get the uncompressed video recording since the ...
6
votes
2
answers
10k
views
Raspberry Pi4 Error while using 2 USB cameras, VIDIOC_QBUF: Invalid argument
I'm using Python OpenCV to read from 2 USB webcams on a Raspberry Pi4. If I'm using either of the camera individually they work fine.
As soon as I initialize both cameras in the script as following:
...
5
votes
1
answer
9k
views
Capturing Video in Low light?
I want to capture in low-light and have NoIR picamera.
I change the exposure_mode to off and set shutter_speed and iso.
import picamera
with picamera.PiCamera() as camera:
camera.resolution =...
8
votes
4
answers
7k
views
How to turn off the CSI, and turn it back on again
I am using the Waveshare RPi Camera (F), which comes with two IR LED boards to enable nightvision (they look like two big eyes on either side of the camera 'nose' - at least that's what it looks like ...
6
votes
1
answer
9k
views
Camera modules v2.1 - what's new?
There are new versions (v2.1) of both the standard and NoIR camera modules on sale as of this morning (see http://raspi.tv/2016/new-8-megapixel-raspberry-pi-camera-2-1-launches for some brief coverage)...
3
votes
1
answer
3k
views
Split screen cloned display
Is it possible to split a Raspberry Pi display so that it shows up twice on one screen?
I'm building a costume that covers my face. To be able to see, I've got a Raspberry Pi with Pi Camera and a 7" ...
9
votes
7
answers
14k
views
How do you configure the Pi Zero to act as a USB webcam using the plug in camera?
There are lots of guides which tell you how to configure the raspberry Pi Zero as a mass_storage device or Ethernet device, most of these mention the ability to make the Pi act as a webcam but none ...
1
vote
1
answer
676
views
How can I diagnose a headless Raspberry Pi Zero W that hangs?
I'm trying to run my Pi Zero W as a motion detecting camera using RPI cam web interface but it keeps hanging after a few hours at most. Before it hangs, it can record motion detect videos and upload ...
3
votes
3
answers
3k
views
Pi camera synchronization
Is it possible to synchronize multiple Pi cameras by synchronizing all their main Pi clocks to a single NTP server, and then commanding them to start taking frames at the same time? (using some ...
3
votes
1
answer
2k
views
Can I use the 2 lane MIPI DSI display port to connect a camera?
I have a camera working fine when connected to the 2 lane MIPI DSI camera port. But I need to connect it to the 2 lane MIPI DSI display port. However when I connect it and check for detected cameras ...
2
votes
1
answer
5k
views
Has anyone successfully ran the raspberry pi camera v2 on Android on the rpi3?
I have made an app that uses facial recognition, and I would like to run it on an RPi3. I have exhausted my google-fu in trying to find an Android build that works well on the RPi3 (it's the only Pi ...
1
vote
1
answer
4k
views
Convert the frame data from recording into a numpy array
I'm trying to take a recording with picamera and have all the resultant frames in an rgb numpy array. To this end I've found the piRGBAnalysis class, but I'm a bit confused about how to use it.
...
1
vote
1
answer
248
views
Direct Ethernet IPCam and Wifi for browsing - Networking setup
I would like to connect 2 ipcams via a switch to the RPI 3B+, and use the WiFi to connect to a router (to use the webbrowser etc), and also use the router for VNC
The ethernet is used to send ...
17
votes
2
answers
38k
views
Take images in a short time using the Raspberry Pi camera module
I'm working on a project in which I need to take about 30 images per second (no movie) using the Raspberry Pi camera module.
I'm using the Picamera library (http://picamera.readthedocs.org/en/latest/...
11
votes
2
answers
16k
views
Pi camera v2 - fast, full sensor capture mode with downsampling
I've a Pi camera v2 which I'm planning to use with an RPi3 for a computer vision project.
I need to capture full sensor images from the camera - no cropping. The resolution actually used by the ...
9
votes
4
answers
37k
views
RPi OCR or how to read a number from the camera
Tried googling first but could not find any interesting hits relevant to what i am looking for.
The wild idea is to put a camera in front of an energy meter or watt meter display and read the ...
9
votes
3
answers
19k
views
What streaming solution for the Picam has the smallest lag?
This post shows how to stream using VLC. It works nice and is simple, but it gives me about a second lag. This post uses GStreamer, and it has 0.3 second lag; I would like less.
Is it possible to use ...
7
votes
3
answers
24k
views
Picamera taking pictures fast and processing them
I'm working on a school project where I have to make a robot move parallel to a wall and stop when it sees a big red square. For this I have the picamera module and the openCV library. I have working ...
3
votes
2
answers
27k
views
Using other camera modules to build custom webcams
I have three old iPhones (iPhone 3GS, iPhone 3G and an iPhone 4) that I recovered from family members that were going to throw away. I had the 3GS so out of curiosity I disassembled it and recovered a ...
13
votes
6
answers
37k
views
Streaming H264 with Logitech C920
I have a logitech C920 webcam. It has the ability to directly encode the video in H264.
I want to reproduce what was done with a Beaglebone, but using a Raspberry Pi: send a H264 stream to the ...
5
votes
3
answers
20k
views
Best way to stream video over internet with RPi?
I'm wondering what is the best way that I can stream video from the camera module over the internet. By "best" I mean lowest latency (can't suffer a second delay for example, this is a real-time ...
6
votes
2
answers
2k
views
What's the RPi camera board called (internally)?
I connected a Rpi-camera board to the camera socket on my RPi (not a usb webcam). I have been searching the internet on how to call the camera in Python.
The camera works (raspistill and raspivid both ...
34
votes
4
answers
41k
views
What cameras can I connect to the CSI connector?
The model B comes with a MIPI Camera Serial Interface connector, but it's hard to find a store that'll sell you a chip or camera to interface with it.
The only thing I've found so far is the the ...
16
votes
6
answers
41k
views
Raspberry Pi Camera Rev 1.3 is not detected
I'm using an RPi 2 Model B and I have connected a Raspberry Pi Camera Rev 1.3 to it.
I have checked to make sure that the connection is correct (the power LED on the camera is on).
I've run:
rpi-...
11
votes
3
answers
28k
views
How to increase the camera exposure time?
I am taking pictures in very dark environment, and I would like to obtain a brighter image. How do I increase the exposure time? I've tried the following:
different exposure mode, like night, ...
7
votes
1
answer
50k
views
"Failed to open video device /dev/video0 no such file or directory" with normal working usb camera in motion
I have a normal usb 2.0 cam. Connecting it to my pc, it works perfectly. It is not working with my raspberry pi (2). I had installed motion and it had worked good before 2/3 weeks when I tried it but ...
5
votes
1
answer
7k
views
Can the Exposure or Brightness of a Pi-cam be adjusted without interrupting a running process
If I have a running process using the camera (recording, streaming, motion detection or whatever), is it possible to adjust the brightens from a 2nd SSH session or from a different deamon process ...
5
votes
4
answers
34k
views
Streaming live from the picam
I have tried to install Motion to stream from the cam. So I went to: RASPBERRYPI-IP:8080/8081 but it didn't show me my stream. I have no idea how Motion works and I am curious if this is the best and ...
2
votes
2
answers
2k
views
trying to run 6 USB cameras simultaneously on a single Raspberry Pi 3B+ with add-on 4 port USB hub with external power
We are trying to simultaneously run 6 cameras on a Raspberry Pi 3B+ with an add-on 4 port USB hub that has an external power supply. The cameras are set at 15 FPS with a colour image size of 640 X 480....
1
vote
1
answer
2k
views
PiCamera circular buffer piped to gstreamer
I have a circular buffer that is monitored for motion and saves clips to disk. Following the everything is a file philosophy, I should be able to write to a Unix pipe like I write to a file and make ...