Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
0answers
44 views

Problem with Pi Cam / Python / opencv: “Incorrect buffer length for resolution 640x480”

I want to build an animal counter based on pi zero w, pi cam, python and opencv. I read some tutorials (especially from https://www.pyimagesearch.com) how to setup all that stuff and in principle ...
0
votes
1answer
32 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 ( ...
0
votes
1answer
21 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 ...
0
votes
1answer
41 views

Could one hack the Pi's camera firmware to increase FOV?

I have been trying to figure out a way to run Picam-v2 mode 7 at full-FOV for these requirements. Dave Jones (developer: picamera lib) mentions here that line skipping hasn't been implemented in the ...
0
votes
0answers
22 views

Fast Raspberry Pi Capture with Processing

For a project I am working on I want to be able to take a picture with the picamera V1, do processing on this image, and then do this process again and again as fast as possible. I am currently using ...
1
vote
1answer
50 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-...
1
vote
1answer
42 views

Multiplexer vs RPI Compute Module for stereo camera?

I am looking to capture images simultanously using 2 picameras (tried USB the FPS is low). It seems like there are 2 options: Raspberry Pi compute module 3 with IO board which gives 2 CSI ports(...
-1
votes
1answer
22 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?
1
vote
1answer
22 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 ...
0
votes
1answer
17 views

Options to start timelapse sequence in the morning and stop in the evening, then repeat on Pi Cam Web UI?

Hi all I've been using Pi Cam with Web UI on RPi3 (with naturebytes build) for a long term timelapse (9 months). I've been successfully shoot timelapse for the past week but it shoots the whole day ...
0
votes
1answer
26 views

Could not find an image captured using raspistill on raspberry pi

I ran the command raspistill -o image.jpg can someone tell me where is the image storred
0
votes
0answers
20 views

log TTL event time along with frame timestamp using picamera python library

I am using picamera library to store the frame timestamp along with the video. Next, I am sending square TTL pulse to the raspberry pi GPIO pin with the following signature: 1 second ON, 1 second OFF, ...
0
votes
0answers
64 views

Emulating a Pi Camera (CSI) device? It is possible?

I need to run a Python script that uses the Pi Camera Module (python) inside of a Raspberry Pi 3 but I don't have a Pi Camera (CSI) device yet (only a USB webcam). It is possible to emulate a Pi ...
0
votes
0answers
32 views

RaspiCam on RPi 1 B+ doesn't show images

I'm trying to get a livestream with the official raspicam (with IR; revision 1.3) working, which is attached on my Raspberry Pi 1 Model B+. The problem is, that I get an gray screen when I'm ...
0
votes
0answers
93 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/...
0
votes
0answers
91 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 ...
0
votes
1answer
256 views

Access RPi's camera stream in OpenCV C++ (Qt)

I've setup my Raspberry pi 3 B with uv4l and have access to the video stream on http://(raspberry-IP):8080/stream address. Now, I have Qt5(C++) and OpenCV installed on my main computer. How can I ...
0
votes
1answer
129 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 ...
0
votes
0answers
385 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 '#...
-1
votes
1answer
68 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")
0
votes
0answers
21 views

Edit pixels from raspicam and output using renderer

The docs for the raspicam library are nearly perfect: clear, tons of examples, and thorough, especially given that they cover a really hard topic. But I'd like to capture live video frames, process ...
0
votes
0answers
40 views

Pi camera produces image with noisy black and white lines

I have set up my camera module v2 but it is producing only noisy black and white images of vertical lines using both raspistill and raspivid. Tested with both my RPi 2b and RPi 3. I get the same ...
0
votes
0answers
12 views

Bootup problem, freezing Pi, power problem with IR camera or USB

When I bootup my py with latest version of raspbian with only one IR camera my Pi wont bootup. The red led blinks red. This same PI, Img, and SDCard were working weeks with same camera + nova PM ...
1
vote
2answers
39 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 ...
0
votes
0answers
22 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 ...
0
votes
0answers
97 views

Google AIY vision kit 1.1 - Inference already running

I noticed that when using CameraInference object in a Python 3 script, if the script crashes, the script won't run properly after again without a reboot. Joy detector is off. Anybody knows how to fix ...
0
votes
0answers
94 views

Use USB Mic simultaneously with RTSP Server and pyaudio

I'm building a baby monitor based on Raspberry Pi. I use Picam and rtsp-server to stream the pi camera and the sound of the USB Microphone to a video view in an android app. At the same time pyaudio ...
0
votes
0answers
30 views

Pre-event recording with picamera

This is my first time using the picamera. My goal is to make the camera record a certain ammount of frames before and after an event I will signal to it. So I have two questions: How can I ...
2
votes
2answers
370 views

Can Raspberry Pi NOIR Camera see near infrared light (~1550nm)?

I wish to create a pattern using 1500nm laser and analyse the images.Will any Pi-Cam (NOIR) capture this? Link to research regarding camera characteristics with respect to wavelength upto 1500nm ...
5
votes
3answers
412 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 ...
1
vote
0answers
161 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 ...
0
votes
0answers
245 views

Gstreamer error qt / opencv project

After making project on Rpi I receive this error after calling VideoCapture c(0) (I think...) Am I referencing the Pi NoIR camera incorrectly? Or am I missing or have I incorrectly installed ...
1
vote
1answer
158 views

Why is my pi camera v2.1 detected but not taking pictures?

Thanks for your help. Yesterday I moved my Raspberry Pi cam v2.1 with the rpi robot chassis and the camera won’t take pictures. But, the day before, the camera functioned properly. Why do you think ...
1
vote
1answer
146 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....
0
votes
1answer
26 views

Raspberry camera is not giving any output?

I am using Raspberry pi 3 Model B and Raspberry Pi Camera v2.1. When I am using a simple code to show the live video, it is neither giving any output nor any error. During the running time of code, ...
0
votes
0answers
75 views

Streaming Video from pi camera to already existing webpage on running on apache2

So I currently have a site running on my apache2 server and I want to add another page which I am able to stream video live from the raspberry pi camera module. I have been looking into ways to do ...
0
votes
0answers
180 views

How to stream the PiCam to own HTML on Apache Server

I really need help. I am trying to solve this problem for a week now and i am pretty much burned out. I have a Raspberry Pi Zero W and i am controlling it through ssh. The camera that i am using is ...
1
vote
2answers
94 views

How to synchronize images from two raspberry pis

I have 2 Pi Zero Ws (wifi), each with a Pi camera connected to them. Both Pis/cams are running on battery power and deployed in the desert. There is no network or internet connection. The cams are ...
1
vote
2answers
271 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 ...
0
votes
2answers
38 views

How can I add a delay before raspberry pi cam starts recording?

I am using the following command to take video: os.popen('raspivid -1 640 -h480 -fps 25 -o motionCapture/' + timeStamp + '_motion,h264 -t ' + str(timeInSeconds * 1000)) The problem is when I try to ...
0
votes
1answer
55 views

Straming Raspberry camera to own Apache Server - Command not found

I am planning to implement a camera video stream from the Raspberry Pi to its own Apache server. I trying to solve this for a week now and i am pretty frustrated by now. I came across this tutorial ...
0
votes
0answers
44 views

Flint OS and RPI camera v2

In order to prepare a confcall kiosk using Google Hangout/Meet on a Raspberry Pi 2, I try to setup Flint OS on it. Unfortunately, it doesn't seem to find the RPI camera (v2 NoIR), and when I try to ...
0
votes
1answer
172 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 ...
1
vote
0answers
768 views

Calculating focal length of Raspberry Pi Camera

This article claims you can calculate the focal length of the Pi camera with the equation: F = (P x D) / W where: W is width of known object D is the object's distance from the camera P the ...
0
votes
0answers
139 views

Raspistill preview window invisible

A couple of months ago, I had a good installation of the raspberry pi, and the picam module I was using was working great. Recently, one of my raspi's drivers got corrupted, so I had to re-install the ...
0
votes
0answers
153 views

Pi Camera V2 vs. Pi NoIR Camera V2

I'm using a Pi Camera v2, but the ambient light causes many reflections. So I thought it was necessary to use a Pi NoIR camera with infrared led, in this way the cam sees only the part illuminated by ...
0
votes
1answer
581 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....
0
votes
0answers
93 views

Storing faces in database by capturing images with picamera

I am trying to do facial recognition with the picamera and Pi 3. At the moment I am trying to get the picamera to capture 20 faces and store the images in the database. Here is my code: import cv2 ...
0
votes
0answers
40 views

Camera captue using picamera

im new to python and picamera. i was not able to capture an image using my code below. it gives me an error with the command camera.capture = get_image(). How can i fix this? also i would like my ...
1
vote
1answer
39 views

Motion Service Hanging Up Pi?

I have had a raspberry pi B+ for a little over a year now, and I've noticed consistent performance issues after running motion service for a long period (anything over an hour or so). Originally I was ...