Use the Camera tag for any questions related to how to use a camera or webcam with the Raspberry Pi.

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1answer
26 views

Turning LED light on with Pi

I am looking to build a home security camera with a LED light attachment. Many people mention they use a IR Illuminator for the light source which often seem to be DC 12V. I am not sure how one would ...
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2answers
28 views

Compiling WiringPi (GPIO input) into raspistill/raspivid

I want to synchronize a stereo camera for either stills or video. The goal is the smallest possible delay between GPIO trigger input and camera shutter actuation (so that stereo is possibly in sync) ...
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1answer
20 views

Activate RPI-cam with rfid signal

Can anyone give me some advice on the next. Is it possible to activate the RPI-cam with a signal from a rfid reader? Here's the practical enviroment. I am a pigeon fancier and my pigeons are ...
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1answer
38 views

Does anybody else experience micro-freezes with the Raspberry over wifi?

whenever I connect my Raspberry Pi over wifi to the LAN, I sometimes get micro-freezes when streaming video from the Raspberry or when I connect over ssh. It seems kinda periodic. The freeze/lag has a ...
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0answers
60 views

Fast image array processing with Pi NoIR camera in Python using picamera module

I'm working on a project with a RasPi in which I have to find a bright spot in an image (the bright spot is fire). I've written a function (code below) which captures images to RGB arrays using the ...
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0answers
25 views

Raspicam API cannot compile programs

I have installed the raspicam api as per the instructions. There were no errors. Now when I try to compile the example programs or any of my own programs using the API, I get the compile error: ...
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2answers
71 views

Using the camera with uv4l

After installing uv4l as instructed here : http://www.linux-projects.org/modules/sections/index.php?op=viewarticle&artid=14 I managed to get pictures using dd as the same page suggests : dd ...
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2answers
69 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 ...
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0answers
49 views

Raspberry Pi B+ direct interface with usb camera

I would like to know if it is possible to connect usb cameras directly with RPi B+...?? While working with RPi Model B, I had to use a powered USB hub to interface with my i-ball camera, but with 4 ...
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0answers
37 views

Motion - grey screen with camera module

I set up motion and the UV4L drivers for the raspberry pi camera module, but when I try to start motion with sudo motion, and connect with VLC I only get a grey screen. This is what the terminal says: ...
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0answers
39 views

Problem recording video with audio from usb soundcard using avconv

What I'm trying to accomplish in this program is that when video and sound is captured, the output file is .mp4 extension (or some other, like .ogv), with video and sound. I know how to capture video ...
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2answers
201 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 ...
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1answer
63 views

RaspberryPi camera rev 1.3 cross section

I want to modify the RaspberryPi camera rev 1.3 by cutting out the camera chip. Is there some documentation availiable for example a detailed cross section picture? So I know where to exactly cut ...
1
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1answer
55 views

Custom White Balancing with picamera

I need a method to set the White Balance of the raspberry pi camera by "teaching it". Such as it is in DSLR cameras, I'd like to show a white picture to the camera and say "OK, this is white, now ...
1
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1answer
155 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 ...
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2answers
154 views

Connecting two cameras into a PI

Is it possible? One connects to the CSI port and the other one to the GPIO ports and use the i2c interface to extract the data.
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0answers
100 views

Raspberry Pi Camera Module As A Streaming Webcam Commands

mmal: Skipping frame 2 to restart at frame 5 mmal: Skipping frame 6 to restart at frame 10 mmal: Skipping frame 11 to restart at frame 16 mmal: Skipping frame 17 to restart at frame 22 mmal: Skipping ...
1
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1answer
69 views

How can I connect RPi camera to desktop computer?

Basically USB cameras are too rubbish for what I'm trying to do, and I'm trying to develop for the RPi but the RPi is just too underpowered to develop image processing stuff on. Is there any way I ...
0
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1answer
23 views

How do i save pic to the same png rather than creating a new png each time a pic is taken

i have a question, How do i save pic to the same png rather than creating a new png each time a pic is taken this is the command that execute the pic: *cd ~ mkdir picture cd picture screen ...
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3answers
113 views

Raspberry Pi Camera Module, Time Lapse Photography

I have created a Raspberry Pi time lapse photography by following the steps in this website: http://computers.tutsplus.com/tutorials/creating-time-lapse-photography-with-a-raspberry-pi--cms-20794 ...
0
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1answer
184 views

How to stream high res pics from RPi camera?

Currently working on a project that requires the highest resolution images from the RPi's camera (2592x1944) to be sent over LAN to PC image processing server. I've been digging and with some help ...
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1answer
74 views

same problem, camera rpi not works ENOSPC

i have raspberry pi Type B and i am trying to attach camera into it, all i have done is upgrading dist and firmware sudo apt-get update sudo apt-get dist-upgrade sudo rpi-update all firmware is ...
0
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1answer
142 views

Exposure correction via Picamera module

I am using the python picamera module developed by Dave Hughes. As per the documentation, the camera exposure can be set between -25 to 25. In my application, I need to get brightest pixels from the ...
0
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1answer
39 views

Can I display video from a Canon PowerShot Pro 1 on a raspberry pi?

I am looking to make a photo booth using a Canon PowerShot Pro 1 and a Raspberry Pi. I am able to communicate with the camera over usb using gphoto2 for taking photos. I still havent figured out how ...
2
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2answers
376 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 ...
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0answers
94 views

picamera stream and web.py

How do I integrate picamera to return a stream in a GET method defined in web.py ? urls = ( '/webcam', 'CamHandler' ) I'm trying something like: class CamHandler(): def GET(self): ...
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1answer
129 views

I don't get 24 frames per second

Although the camera framerate has been set to 24, 24 frames are being captured at 3 seconds. Wondering where I am going wrong?? I need to convert the stream to an OpenCV object to do further image ...
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0answers
49 views

Fastest video capturing method

I have tried various variants to capture the frames using the python picamera module for raspberry pi. I switched to using the .h264 video format and extracting frames out of it for video processing ...
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0answers
30 views

Command to unfreeze a Raspberry Pi camera

I used the threading module(as per the Dave Hughes "picamera" documentation) to process the camera frames as threads, I did not put a stop criterion on it. How do I free the camera, since it is stuck ...
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0answers
220 views

Setting camera module to /dev/video0 to scan QR Codes using zbar

I'm trying to use the library zbar to scan qr codes using Raspberry pi's camera module. I've connected and tested the camera, but I don't know how to access that from the library because it isn't on ...
0
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1answer
89 views

Import composite/ntsc-signal

I already googled a lot and mostly read that importing composite Signal to the Raspberry is almost impossible. I would just take a webcam and proceed since it seems to be a lot easier. The problem ...
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0answers
183 views

Raspicam Web Streaming :) :O :(

I am currently working on a Rasperry Pi robot and I've been able to control my robot through an html web page..I just started playing around with the Raspicam and I want to add a video stream to my ...
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2answers
243 views

Picamera as streaming server

I am implementing a video streaming server with picamera (it is a requeriment), but i can't test it... I am executing this example for the server: import socket import time import picamera with ...
1
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1answer
66 views

Does the Raspberry Pi camera module have any power saving modes?

My question is related to this one I just asked But this time, I want to know if I can cut the camera power. A FAQ says it draws 250mA, but I don't always need it to be on, so are there any power ...
2
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2answers
235 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 virtuel V4L2 device using ...
0
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1answer
199 views

Pygame + RPI-Camera Container

Currently I'm using this code, to display my pygame on 2.8" TFT with Touchscreen while keeping the HDMI-Port as main-output: import pygame, sys, os os.environ["SDL_VIDEODRIVER"] = "fbcon" ...
1
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1answer
75 views

Streaming from the camera only when required?

Although I don't know much about video encoding and such I know how to stream video from the camera board with vlc by piping the output of raspivid into cvlc. Despite the horrific lag, it works well. ...
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0answers
43 views

USB camera originally designed for PC hardware and kernel 2.x

I wonder if this is off-topic. Basically, I want to get some idea before spending expensive money on international mail order. The question is really getting comment on how compatible is Linux on ...
3
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2answers
179 views

Are there any alternatives to the Pi Camera?

What sort of support is there out in the wild for non-official cameras which are supported by or compatible with the Raspberry Pi, with or without use of the special interfaces?
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0answers
111 views

Raspberry Pi Camera… What's the big deal?

I remember when raspberry camera was announced everyone was very excited about this. The question is why? Couldn't you hook up regular cameras to pi? Or maybe use a cell phone camera? What interface ...
2
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2answers
990 views

Connection for 6 raspberry pi camera modules? [closed]

Any ideas, I want to configure 6 cameras for 360 degree view
3
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2answers
107 views

Shared Windows Folder

I'm doing this beginners project with a motion sensor and a pi camera. With this I'll make a security camera. Since the SD card is really large on memory (compared to a HDD) I want the pi to send all ...
1
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1answer
62 views

RaspiCam spot metering: where's the spot and how to move it?

I'm trying to use the Pi (NoIR) Camera to record a timelapse that needs to produce good results both during day and night. By default, I don't get a correctly exposed result under all conditions. I ...
2
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2answers
777 views

CCTV housing that fits the Raspberry PI [closed]

I'm looking for a CCTV housing that fits the Raspberry PI and the camera board in for under £10 (or very near to £10). It needs to be: waterproof / made waterproof with silicon sealant at least ...
1
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1answer
2k views

Receiving this Error with RPi camera module: mmal received unexpected camera control callback event

This error appeared two weeks ago when using the camera module. I searched on the internet and came to a conclusion that my Raspberry Pi camera module was defective. I just received another camera ...
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0answers
363 views

How to display video through Logitech Quickcam Express (V-UH9)

I am trying to setup my very old Logitech Quickcam Express (V-UH9) using motion. When I run motion, I see on the local ip address a grey box, with time and text being displayed (according to the ...
1
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1answer
393 views

Sample program for RaspiCam API not compiling

I have been trying to compile the sample RaspiCam program provided on their project page. When I try to compile the code using the following: g++ simpletest_raspicam.cpp -o simpletest_raspicam ...
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3answers
482 views

Pi Camera - how to create a flash?

I have a need to take photos with the Pi camera, but to illuminate the subject. The subject will be 1m or so away, but will be in total darkness most of the time. Therefore, I need a flash of some ...
1
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0answers
920 views

camera error mmal: Received unexpected camera control callback event, 0x4f525245

I try to take picture with my raspberry camera, I got this error mmal: Received unexpected camera control callback event, 0x4f525245 any idea???
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0answers
245 views

Options for slow camera via OpenCV

I'm desperately trying to use the Pi camera to do some work with it; I'm using OpenCV but trying to process the feed from the camera itself. Currently I'm running OpenCV on the Pi itself but this is ...