Questions tagged [raspicam]

The CSI interface camera from the Raspberry Pi Foundation available in a natural colour and a NoIR version without infrared filter, latter is suited for night vision and other special applications.

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1answer
3k views

Installing mmal motion on RPi

I have been trying to install motion on my Pi3, only to be chasing library errors at every step. None of the tutorials seem to say what flavor of Pi OS to use. I am beginning to wonder if I chose ...
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121 views

Capture stereo image using IVMECH's IVPort v2

I have the IVPORT v2 (a raspberry camera multiplexer) and want to capture a image pair (1 from each of the 2 cameras) as close together as possible. Which code should I be looking at from their github?...
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101 views

raspivid doesn't include b-frames

I'm streaming raw h264 using raspivid on Raspberry Pi 3 and PiCam v1 . However, even I set the h264 profile to main or high, stream only contains I and P frames. Here is the command that I use for ...
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1answer
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Raspberry Pi NoIR V2.1 blurry image

I have an Raspberry Pi 1 and a NoIR V2.1. I also bought an IF lamp and with an slow enough shutter_speed the brightness gets good enough, but the image is really blurry. I created an image with the ...
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3answers
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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 ...
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1answer
37 views

What will happen with 2 AV signals

Should be a quick one. I know you can mix AV channels to overlay images but if I connect 2 raspberry pi to one screen in AV and no multiplexer how will the channels mix if they are at different ...
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571 views

How to stream an RTSP source (e.g., Raspberry Pi camera) over the Internet without port forwarding?

I have a Raspberry Pi with the camera module attached and I can view the RTSP stream fine when I'm within my local network. What I want to achieve and am struggling to figure it out is how to stream ...
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0answers
87 views

simultaneous pi camera threads C code

I have used motioneyeos in the past to implement a motion capture video recording system on a raspberry pi, right out of the "box". It was nice in that it could do motion detection, video recording, ...
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2answers
4k views

Camera delay reduce

I have a project with a raspberry pi zero w, and his camera, and I want to have a video stream and with less delay as possible, and if possible, a stream which can be started with a bash script. ...
4
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1answer
522 views

Picamera record video in one resolution and take stills in three other resolutions

I looked into the documentation of the picamera and wondered whether there would be a way to use the splitter option to have the picamera capture a video in 640x480 and asynchronously capture stills ...
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1answer
590 views

Stereo vison with Compute module via SSH

I started working with a Raspberry Pi Compute Module and 2 PiCamera after long time. I lost all the notes about our old class project, I quite don't remember all our procedures Each camera is ...
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2answers
10k views

What is the solution to this error of OpenCV with video.capture() and it not correctly reading with video.read? (Completly new to raspberry pi)

I'm completely new to the raspberry pi and am looking for help with this same error I've been trying to solve for the past few days. I completely reinstalled OpenCV twice now from two methods on a ...
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1answer
2k views

How do you extract the raw image from a JPEG taken by the v2 camera?

I'm very new to working with the Raspberry Pi. For a project, I must have the raw images taken by the camera instead of the processed JPEGs. If I take a raw image using: raspistill -r -o test.jpg ...
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1answer
715 views

Running a camera script on startup - Raspberry Pi Zero W

I'm creating a time-lapse camera to attach to a pair of glasses. I tried out my script (python 3) and it works, but I need to get my script to work upon startup up since it will powered by a ...
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1answer
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Raspicam C++ library — captured image requires several grab()s to be properly bright

Note that I am referring to the C++ library, raspicam (http://www.uco.es/investiga/grupos/ava/node/40), not the raspberry pi camera in general. Unfortunately, I don't have the reputation to make a "...
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0answers
53 views

Any issue with magnet too close to rpi?

I don't think this is an issue, but a search turns up nothing and I just want to be sure. I'm working on a project that involves a single speaker mounted approx. 2.5 to 3cm above a Raspberry Pi 3. ...
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2answers
359 views

Can it be an issue to record videos directly on the SD card of a Raspberry Pi?

I am using a Raspberry Pi Zero W and the picam v2 to record videos continuously for several days. Files recorded are only 5-minute long. Can I save files on the SD card directly, or should I use an ...
8
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1answer
945 views

Different image quality from picamera capture to numpy array and path

The quality of capture from Pi Camera varies when captured to numpy array and when captured directly to a path. The former has more pinkish tint to it than the later. Why is that.? The code I used ...
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0answers
84 views

Pi camera 1.3 crashes and requires reboot to use again

My raspberry pi camera 1.3 is connected to a Rpi 3B+ and I have a script that has the camera take a picture every 5 minutes and save it to a network location. Once in a while, the camera will crash ...
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0answers
37 views

Can pi cam with raspberry pi take pictures at car speed of 40KPH?

If I attach a pi-cam at front of a car and want to take pictures of the road at car speed of 40KPH, can the pi-cam take clear pictures? And is there a way to constantly change the fps of picam ...
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193 views

How do I get Raspberry Pi Camera Serial Number?

This is necessary so that we can uniquely identify cameras that get moved between pis. We found that we could get the camera serial by communicating with it over i2c0, but this required enabling i2c0 ...
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1answer
280 views

How to light up picamera LED without taking photo

I want to light up the picamera LED using python for a few seconds as a test to see if it works, without actually taking a photo. And yes I know I can test that by just taking a photo and watching it ...
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1answer
160 views

Undefined Reference to `vc_gencmd(char *, int, char const *, …)`

I wanted to control the raspberry pi camera with MMAL and I used the RaspiCamControl.c file to learn how to control the camera component then I wrote a class about it. I've created and added all the ...
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2answers
5k views

Pi cam over SSH or VNC

I am new to raspberry pi and have started a project. I have a pi 3 and I am making an infrared night vision remote controlled car with a infrared pi camera I found on Amazon. So far everything is ...
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1answer
4k views

Camera module not getting detected

I get this error when I run 'raspistill -t 2000 -o image.png -e png ' mmal: Cannot read cameara info, keeping the defaults for OV5647 mmal: mmal_vc_component_create: failed to create component 'vc....
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1answer
134 views

Picamera (in Terminal and Python 3) just does nothing

I have a Picamera V2, a brand new Flex Cable (so that's not the problem) and a Pi 3B. I am using VNC from Ubuntu. The Pi connects OK. But in the terminal (raspistill - o hi.jpg) and in Python 3 ( ...
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1answer
44 views

without looking in config.txt, how can I see my start_x setting?

Basically, I'd like to verify if the camera is getting enabled. I've grepped around on dmesg and /var/log and lsmod, and have googled, and I have failed so far. I went to a machine where I know the ...
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3answers
18k views

Official Raspberry Pi 7 inch display power consumption

I bought the display along with the camera board v2 a couple of months ago to work on some projects with my Raspberry Pi 2 but only recently found the time to actively experiment. Now unlike the ...
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1answer
4k views

RaspberryPi Camera - bcm2835-v4l2 kernel module source

I want to make some optimizations on camera kernel module so it can work better with a camera multiplexer module. There are 4 camera multiplexed by GPIO pins and some hardware. I have cloned the v4l-...
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1answer
216 views

How to get the Pi to recognize numbers and letters from images [closed]

I would like to start a project that will take a picture of the license plate of a vehicle and then take all the digits and record them. Is there a way to have the Pi recognize the digits?
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2answers
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Image artifacts in raw TIFF from Pi Camera disappear when I first save as DNG and then convert. What gives?

I'm trying to use the Raspberry Pi plus the NoIR Picamera module V2.1 to collect raw (bayer-filtered) IR images for NDVI analysis of plants (programs written in Python). So far, I haven't found anyone ...
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1answer
295 views

Naming images from camera with time so that they don't overwrite

I'm working on a project which will use a PIR motion sensor to take a photo of the room, also triggered by the PIR sensor. I'm using the PIR sensor for something else at the same time, so I'd rather ...
7
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2answers
31k views

Sending Raspberry Pi Camera preview to a laptop running VNC Viewer

I currently have a raspberry pi model B with a raspberry pi camera connected to it. The raspberry pi is connected to my router via an Ethernet cable, I control the raspberry pi through VNC viewer on ...
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2answers
2k views

PiCamera v2.1 exposure can't be locked, Python Picamera 1.13

I have posed this question on the Picamera Github issues forum but it has not been answered in nearly a month. Hoping for better luck here. I am running a Pi Camera v2.1 in an industrial measurement ...
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3answers
15k views

Do I Need To Replace My Raspberry Pi Camera?

I know that there are several threads here that discuss this issue, however none of the solutions have made any difference. Anyway, when I plug in my RPi Camera into my B board, I get this error: ...
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2answers
395 views

Why does raspividyuv need sudo?

I'm running Arch Linux ARM on my RPi 1B. I'm trying to pipe raspividyuv's output to a program that I've written and it seems that I can't run raspividyuv without root privileges. raspivid works fine ...
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0answers
457 views

PiCamera with RPi v3 B+: gpioman_get_pin_num: pin CAMERA_LED not defined

Sorry for the long-winded post. I understand this issue has been posted throughout various forums (including here), but even after following all of the advice I have seen, I am unable to get the Pi ...
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0answers
865 views

Invalid string offset errors when compiling RaspiCam C++ Library

I am getting these warnings with the RaspiCam C++ library, and wondering if anyone has a fix for them? My program is also crashing and I'm wondering if it's related. /usr/bin/ld: /usr/local/lib/...
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1answer
2k views

UV4L crashes after failed WebRTC connection

I have a resin.io project and I'm trying to get WebRTC streaming to work. I used instructions from here to modify my Dockerfile. What I'm doing: Install UV4L software: RUN apt-get update &&...
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1answer
7k views

Camera, Ubuntu, modprobe bcm2835-v4l2 ERROR: could not insert 'bcm2835_v4l2': Operation not permitted

I have added a camera to the raspberry but I get the following when trying to load the driver: root@deadlock-desktop:~# modprobe bcm2835-v4l2 modprobe: ERROR: could not insert 'bcm2835_v4l2': ...
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0answers
2k views

Streaming video with vlc as mjpeg from the RPI

I have an RPI camera module V2 connected to my PI and can stream footage from it into the lan with raspivid -vf -hf -o - -t 0 -w 1000 -h 576 -fps 20 -b 500000 | cvlc -vvv stream:///dev/stdin --sout '#...
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1answer
3k views

Camera gets hot, how much power should it dissipate?

I planned to add the chinese NoIR RPi camera in a birdhouse. First tests revealed, that the camera module heated up to 65 ⁰C. The IR LED's were very warm too. How much power is dissipated by the ...
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1answer
890 views

How can capture many images using picamera and loop and different name? [closed]

Here's my current Python code: import picamera with picamera.piCamera() as camera: for i in range (10): camera.capture("/home/pi/Desktop/newfile/newimage.jpg")
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2answers
169 views

Developing custom effects for raspivid?

Has anyone created a custom effect for raspivid's -ifx option? From a quick look at the Github repo, it seems there is it might be run through the MMAL interface but I have no idea where to get ...
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0answers
106 views

PiCamera 2.1 shows occasionaly same picture in continuous shooting mode

I don't know what's wrong but when I use stream (io.BytesIO()) when I want to save one picture after another from time to time I get same picture saved. Code: from picamera import PiCamera import io ...
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1answer
505 views

Pi Camera: Raspberry Pi 3B+'s red led blinking

I'm developing a project based on a Raspberry Pi 3B+ which utilizes an original Raspberry Pi Camera module. I'm powering the RPi from a 12V 4-cell LiPo, brought down to 5V by a power distribution ...
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1answer
2k views

Raspberry Pi NoIR Camera - PiCamera/Raspistill

I have a RPi Noir V2 camera running on my Pi Zero w. I have been taking time lapse pictures from dusk till dawn and have had different results using Python 3 PiCamera and the shell command Raspistill....
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3answers
823 views

Is it necessary to release Raspberry Pi Camera before rebooting? If so how do I do it?

I have a python3 script that uses OpenCV and a Raspberry Pi cam. It runs almost 24/7. Using crontab the pi will reboot every night at midnight and the script will begin running again. This is mostly ...
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0answers
426 views

PI camera: Image processing

I am interested in image processing with Pi camera. My intentions are as follows: To fetch an image of 64 x 64 resolution at 60 fps in a buffer one by one continuously. Process each image in real ...
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1answer
2k views

Stereoscopic capture (2 cameras) on Raspberry Pi 3?

What's the best way to connect 2 cameras to the Raspberry Pi? Is it true the only way to do it is with the compute module? Can you use 2 USB cameras? Can you use a multi-camera adapter like this? (...

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