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

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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 ...
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1answer
26 views

Reading Frames of uncompressed yuv video file?

I recorded an uncompressed / un-encoded video in yuv format using camera of my raspberry pi. I want to read each frame as an image and also count the total number of frames of the video. I found ...
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101 views

Does a browser exist for the Pi 2 that supports both WebRTC and HTML5 Canvas?

I'm looking to make an application that utilises a webcam to capture a still image. Ideally, I'd like to use WebRTC and the tag to achieve this, as this avoids a native application. Before I got ...
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34 views

multiple color blob detection/tracking [on hold]

I saw some image detection on the raspberry ( but the frame rate was terrible around 5fps ) - perhabs that because of the large raspbian os (3gb i think). maybe faster (if possible on riscos/freertos) ...
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1answer
34 views

Noir camera not disengaging when program closed

I am using a python script to access my NoIr Pi camera module via the "picamera" package. Yesterday everything was working fine. Today everything is still working fine, however whenever I close my ...
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1answer
43 views

Frame rate of h264 video?

How do I check the framerate of my .h264 video? I used VLC player (tools) but it doesn't list the codec information as well as framerate. I explicitly set the framerate to be 60.
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2answers
57 views

Streaming From Pi Camera Module

I just got a new Pi camera module. My Pi B+ is controlled through my Macbook. I would like to stream to the Macbook without saving. It seems that the standard vid command also saves. Does anyone ...
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0answers
42 views

Ideas for limited camera pan and tilt

I have a number of Pis, each with a camera module attached. I've mounted the cameras on a flat board side by side, but have discovered that there are physical inconsistencies in the camera modules ...
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1answer
136 views

Streaming from RPI over VLC

I realize this is a very commonly asked question but I haven't found anyone who's run into quite the problem that I'm running into. On my PI I run the following command: raspivid -o - -t 99999 -w 640 ...
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1answer
66 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 ...
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1answer
72 views

Display raspicamera on PiTFT screen

There is tutorial like texys-2-8-inch-touchscreen-with-raspicamcorder-step-1 that use a tool that copy framebuffer rpi-fbcp. After installation of notro firmware and loading PiTFT module : sudo ...
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2answers
189 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?
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1answer
40 views

Is there a way to display images from raspistill on a webpage without saving them on the file system first?

I'm working on a web page that I would like to be able to constantly display images taken by the raspberry pi camera (about one per second) in real time. my problem is I don't want to save, read, then ...
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1answer
54 views

raspivid - h264 video doesnt have any duration data when playing footage

I have a rasp pi B+ model with the camera module installed. When I use the following basic cmd raspivid -o v.h264 -t 10000 If I export v.h264 to my windows machine and play it back with VLC, I see ...
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2answers
57 views

Broken pipe when SSH using Mac OS X

From my mac I SSH into my raspberry pi to run a python script to take videos of 30min. I have eight raspberry pi's that are formatted in exactly the same way. All works fine only that every 1 in 2 ...
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2answers
175 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 ...
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0answers
48 views

Running two camera at the same time (Pi Camera & USB camera)

I would like for my project to have one camera (PiCamera) Streaming video. And another USB Camera (PS3 Camera) taking pictures when I execute this function: def grabPicture(self): grab_cam = ...
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0answers
280 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 ...
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0answers
37 views

Use laptop iSight with Python and openCV [closed]

Can I connect my pi to my MacBook and then use the camera on it as a webcam for openCV? I need to trick the pi into thinking the MacBook is a USB webcam, so that the pi can pull a video feed from its ...
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1answer
27 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 ...
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1answer
48 views

Failed to run camera app. Please check for firmware updates

Trying to get the pi cam working with open cv per http://thinkrpi.wordpress.com/2013/05/22/opencvpi-cam-step-5-basic-use-display-a-picture/. Finally have the program built, but now I get this: ...
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1answer
75 views

Motion-Mmal: I want to disable live stream capabilities

I have a few questions about Motion-MMAL: Sorry if these are noob questions. 1) I want to disable the live stream capability completely; however, i can only find information on how to keep the live ...
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0answers
9 views

Camera module: Time lapse with live stream [duplicate]

I'd like to live stream a cooking class in college (so it's available for students to view live in a web-browser in classrooms around the college) whilst also automatically saving/capturing one image ...
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1answer
132 views

My Pi noIR camera with additional IR led lighting gives me totally black picture

During daylight the no ir camera is working correctly. But i wish to take photo during the night o very low light I add a IR led lighting (850 mn) and suposedly strong enough but I get a black photo. ...
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1answer
94 views

Lowest latency - video from CSI to screen

A project I'm working on requires unmodified 1080p video to be taken from the CSI interface and sent to a screen (over HDMI) as quickly as possible. I don't currently have a CSI-compatible camera to ...
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1answer
148 views

Weak performance during motion detection with picamera and python script

To dig into the picamera python api i just started a simple motion detection script. It runs in the videomode with 2 frames/second and a resolution of 320x240. Frames are captured with the ...
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69 views

Suitable camera for RPi carputer

I'm trying to build a carputer using a Raspberry Pi (B+ model) and need help deciding on a camera to help me run computer vision algorithms. A normal webcam works fine; however I would like to install ...
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1answer
106 views

Write full frame images or video at 5fps

I would like to use the raspberry pi camera to record a certain object with 5 or 6 fps. The object is about 60cm wide, therefore to take full frame images the RPi camera has to be at a distance of ~ ...
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1answer
170 views

Stereo vision with raspberry

Is there a stereo camera module that would work with raspberry? Did anyone try to do synced video with raspberry in some way? Any help would be appreciated Thanks
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0answers
94 views

Raspberry Pi to stream a composite video signal over the internet?

I wonder if anyone has any ideas on how to go about this. I have a cheap camera used for monitoring, which has a composite video connection as output. I am wondering how easy it would be to take this ...
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1answer
370 views

Raspicam C++ API mmal linking

I have installed the raspicam API as instructed here: http://www.uco.es/investiga/grupos/ava/node/40 It appears to be installed correctly. When I compile any programs linking libmmal I get the ...
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4answers
524 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 ...
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2answers
133 views

How can I save images of the RPi camera on a network drive?

I would like my RPi to take a sequence of images and store them on my mac directly. My mac and RPi are connected via ethernet cable and I can ssh into my RPi via ssh pi@192.168.1.20. I installed the ...
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1answer
2k 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 ...
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2answers
860 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 ...
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2answers
831 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 ...
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0answers
164 views

Facial Recognition on Raspberry Pi using GoPro

I was wondering if someone can tell me how to process a live video feed on the Pi (B) using a GoPro camera? I understand that there may be processing constraints. Then, I would like to do image ...
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2answers
97 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
142 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
43 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
57 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
382 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
58 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
543 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
760 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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228 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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1answer
208 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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211 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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3answers
12k 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
120 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 ...