Questions tagged [picamera]

For questions involving the python picamera module used with cameras that into the CSI jack on the board. For questions about use of the camera hardware itself, use the 'raspicam' tag.

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Cannot turn web streaming into a function

I'm working on a project with my Raspberry Pi 0 and a camera. I'm writing my code in Python using the PiCamera module. This file handles setting up the camera and Starting Web streaming. I had no clue ...
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16 views

How can I set up video calling with out the video lagging 3-5s? (lag is local to the pi, before transmission to other clients)

I am doing video conferencing on my Raspberry Pi 3b+. I have tried both Jitsi (better) and Google Meetings but both of them have a 3-5s lag between the real world and the self-image shown on the pi (...
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32 views

Barcode decoding with pyzbar on raspberry pi

I am using pyzbar to decode barcodes on Raspberry Pi 3 using Pi Camera v1 (resolution 1296x972). Qr codes are decoded very well. When decoding two dimensional barcodes (CODABAR), the success rate is ...
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10 views

My Raspberry not recognize my PI-Camera OV5647

The last time that I worked with my PI-Camera OV5647 all was perfect the camera worked well, but now i try to do a preview but the camera is not recognize by the Raspberry Pi and shows me the error: "...
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1answer
53 views

Opencv VideoCapture much faster than PiCamera

I am trying to process frames from my V2 RPI Camera at high framerates and am stuck with the picamera module. The VideoCapture class from OpenCV seems to be much faster than using PiCamera....
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2answers
21 views

Shutter speed and exposure time of picamera

Is it possible to control the exposure time and shutter speed of raspberry pi camera. If yes, how ?
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1answer
17 views

Send camera video via 3.5mm TV output to video transmitter (5.8GHz)

I have got a Raspberry pi 3 b+, a simple camera connected to it, and a pair of video transmitter and receiver. What I want to do is to send the video signal (the video recorded by the camera) to the 3....
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30 views

PiCamera vs VideoCapture

So I have a project that requires Computer Vision (video stream). But when I want to try my Pi Camera (not USB), there's two method that I can use. They are PiCamera.capture_continuous and cv2....
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22 views

Could not find a version that satisfies the requirement donkeypart_picamera

I was trying to install donkeypart_picamera but then I'm getting an error pip install donkeypart_picamera I get this error ERROR: Could not find a version that satisfies the requirement ...
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25 views

How do I access pixel values from a raspberry pi camera?

I am writing an AI program in Python on a raspberry pi, where I need to access raw individual pixel values from a raspberry pi camera. I really don't want to save the picture, I want to process the ...
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13 views

PICamera white balance difference between preview and capture

Below is a screen shot of the preview and the captured image of the same scene taken from a single PICamera at the same time. As you can see the one on the left (the capture) is noticeably bluer than ...
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1answer
109 views

Wide angle lens for Raspberry Pi v2 camera

I am looking for adding a wide angle lens to the Raspberry Pi v2 camera. Googling helped me locate a 3D printed lens holder and lens that I can attach to the v2 camera. Now I have the M12 lens and the ...
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1answer
22 views

Picam and USB serial comms issue

Are there any known issues with serial comms & the Picam module? When I have a serial channel open (over USB) & write to it whilst viewing the input from a Picam on screen, the view port will ...
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0answers
18 views

Issues with picamera

Hi I am having issues with my picamera, I have installed everything and enabled the camera but when I run the code and try to open the picture taken it says that it contains no data, does anyone know ...
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25 views

Simultaneous frame processing and Live stream video using PiCamera and RPi

I am building an application for Real-time Video analysis using Deep learning and so far am successfully able to, Capture set of frame [with PiCamera@4fps/ 10 Sec Video] using picamer....
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30 views

Using raspvid to stream to PC, I can see data on PC received but how to work with in openCV?

I am using PiCamera on my PI. I am executing this command on the PI: raspivid -n -t 0 -w 640 -h 480 -fps 30 -o - | nc 192.168.0.12 5000 On my computer (windows), executing this command: nc -l -p ...
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1answer
21 views

Can you use the PiCamera library with a camera that is isn’t the PiCamera like the picture?

!camera that I want to use(https://i.stack.imgur.com/GUJ2q.jpg) I’m having some issues getting this camera to work, getting told that I need to check the SUNNY chip that as far as I know is only on ...
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25 views

How do you transmit image data and input data from Pi to PC?

I am currently working on a university Raspberry Pi RC Car Project that deals with image collection along with key user input data. What i cannot seem to understand from various tutorials online is to ...
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36 views

Taking and Saving images fast! with Raspberry Camera

I want to design an autonomous RC car using Raspberry Pi B+. To achieve this I have to collect training examples (images) and commands to drive the car autonomously. The problem is I send commands ...
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0answers
19 views

Raspberry Pi Camera live output presentation

I am trying to setup a Raspberry Pi with Raspberry Pi Camera to output to the image local HDMI monitor. I can get that with raspivid -t 0. However what I want to do is format that live video image to ...
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29 views

CM3 Two Camera Previews, one “hangs/freezes”

First time forum poster here, but I hit a wall in debugging this issue. Thank you in advance for any input! Issue: I am using two instances of raspistill preview for two hours on two Pi Cameras V2 ...
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1answer
36 views

Altitude will only work one time then spits 25000m? Camera also pausing every second

I'm working on a code for a High Altitude Weather Balloon and I wanted the camera to start recording after a certain Altitude. The first output of information is correct but then it spits out wrong ...
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99 views

RPi camera OCR,and save output in variable (pyhton with tesseract)

I want to make a python code for the raspberry pi, with the tesseract OCR engine, that it keeps reading text from the camera in realtime, saves in a variable, and sends output to Arduino. Is there a ...
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1answer
40 views

Should motion detection use images or still frames?

Some Context For a project I'm working on, I'm creating a security camera that detects motion. When the camera has detected motion, it checks again to see if that motion was caused by a human. This ...
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1answer
59 views

Raspberry Pi IR camera light sensor access

I am trying to use the light sensors on the the raspberry pi IR camera as a light sensor to determine if light is exposed or not. Is there a python picamera command that could access these light ...
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18 views

PiCamera Minimal latency between real world event and digital data presence

Using a picamera, what is the best latency one can achieve from a real world event like an led lighting up and the Pi/MCU 'knowing' it has occured(by extracting image data)? I would also be ...
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1answer
53 views

Camera feed sent through TCP socket gets stuck sometimes

I am getting the camera feed from a camera on a Raspberry PI to the computer using a TCP socket to use it for openCV. It works well with minimal delay. However, sometimes the frame gets stuck(freeze) ...
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0answers
27 views

PI NoIR camera very bright picture outside

I'm trying to use the PiNOIR camera, in the 4th floor of a building, I'm trying to film outside I see black image, or white very bright image. How would I resolve that issue ?
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65 views

Explain how to correctly warmup the camera

I get that we need to let the camera warming up to set AWB and other automatic stuffs, but, how and when ? I see people using time.sleep(1) or time.sleep(2), and regarding to discussions, this seems ...
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0answers
35 views

PiCamera python : buff/cache memory keeps increasing

I need to take a picture in each second in an infinite loop. I've wrote 2 different python scripts: one with camera.capture() and another with camera.capture_continuous() In both cases, I see the ...
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0answers
69 views

How to fetch latest camera frame from PiCameraCircularIO?

To achieve maximum performance delivering single JPG frames as a simple webservice I constantly fetch into a circular buffer with the picamera API. Unfortunately the documentation about it is not very ...
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1answer
124 views

raspistill timelapse stops producing output

So I'm trying to run a timelapse for 24-36 (or until storage space is full) but raspistill seems to stop producing output after anywhere from 50-300 stills. raspistill -t 129600000 -tl 5000 -o tlapse%...
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111 views

Pi Zero freezes with using camera recording / motion detect programs

I am having problems with a wildlife cam project I am working on. setup: Pi Zero W Stretch 2018-11-13 Pikrellcam with settings: 1024x768 12 fps 3,5 Mbitrate However, the pi frequently freezes. I ...
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190 views

Docker container, “* failed to open vchiq instance”

My Raspberry Pi camera is running on my RP3 and works fine. I am trying to run it inside a docker container, but I keep running into the * failed to open vchiq instance error. This is my Dockerfile ...
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21 views

What is the operating humidity of the Raspberry Camera Module V2

I'm developing a project involving a Raspberry Cam that is likely to take pictures in a relatively high relative humidity context. However, I can control the relative humidity (the setting is in a ...
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1answer
83 views

Scanning a QR code using a raspberry pi zero or a Pi3 via a command line script

I need to scan a QR code via the command line when a script is run. My current setup is an epaper display with integrated 4 buttons. So far I have each button programmed to run a script to change ...
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123 views

Fast pictures with PiCam and Java

I was already searching through forums and this stack exchange but I couldn't find anything that helps. So here is my problem. I have written a program in Java that analyzes pictures and outputs ...
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27 views

Python PiCamera V2 won't take bmp images, why the errors?

from picamera import PiCamera import time camera = PiCamera() camera.resolution = (3280,2464) time.sleep(2) camera.capture("test1.bmp") # This code doesn't work #camera.capture("test1.jpg") # This ...
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15 views

Multiple delayed output from pi camera

I’m trying to create up to 4 delayed outputs from the pi camera. The length of the delay needs to be varied 15-60 seconds. Is there a way to buffer the cameras feed and use the same buffer for all the ...
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95 views

raspicam TCP video streaming over ssh - almost there… but need help

I am trying to pipe raspivid over ssh to my main computer, and then via gstreamer send the stream to a dummy video device (thanks to V4l2loopback) environment : v4l2loopback version: 0.12.0 kernel ...
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0answers
19 views

My videobooth powered by raspberry pi, has a buzzing noise in the video clip, because of external lightning

My videobooth consist out of: raspberry pi 3b picamera (I use picam) usb microphone (which is actually a external sound card usb with jack input to the microphone) 4 led TL lights (230V) (switched on ...
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1answer
23 views

Camera errors when running Python script at boot from rc.local

I have a Python file that calls the camera to take video when a motion sensor is triggered. I am running it at startup using rc.local (I have the '&' at the end). When I run it normally, it works ...
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0answers
94 views

PI NOIR Camera Not Working

I recently bought a Raspberry Pi 3B+ and a Pi Noir Camera and attempted to set them up. I followed the install instructions on the Pi website for the board and camera, and unfortunately received an ...
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0answers
32 views

Configuring Raspberry Pi Face Detection and Espeak

I am working with a Raspberry Pi Face Detection program and Espeak to tell that Human Face Detected. I'm using Pi Camera for face detection. The face detection program works fine. But the problem is ...
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1answer
321 views

RPI object tracking with multiple objects

I have been reading a tutorial on creating a Rpi colour based object tracking system but have been unable to test it due to me being a away from my Rpi. However I have read through the code and it ...
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1answer
60 views

A way to connect M RaspiCams to N raspberry Pi Compute modules, where M>>N?

I am planning to set up camera rig, which will require 10+ cameras (preferred 20+ or "as many as possible" in spatial arrangement around the observed area. The setup will be academic, experimental, ...
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32 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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104 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
93 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
127 views

Picamera: set shutter_speed with RAW acquisition

I'm using a RPi zero W with a camera V2 to acquire RAW images (I used this). However, I would like to set the shutter speed; I used this to do that, but that doesn't work: import time import picamera ...