Questions tagged [image]

An image is a file containing the complete data of another medium, e.g. the content of a SD card.

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14 views

Sending an image from one Raspberry Pi 3B to another using Rx/Tx

I'm working on a project where I need to transmit a picture from one Pi to another using serial communication .. it is not possible to send it via the network .. it is required in the project to send ...
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1answer
31 views

Is it possible to upgrade Raspian without running it on a Pi?

I would like to use my Linux host to update and upgrade a Raspian image. Can this be done? I know you can mount the image and make permanent changes, see e.g. https://raspberrypi.stackexchange.com/a/...
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1answer
55 views

Writing Ubuntu server image “Verification Failed”

I have tried googling for this to see if people have similar issues but found nothing. I recently obtained a Raspberry Pi 4 (2gb), installed raspbian lite earlier today which all worked just fine, ...
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119 views

Raspberry Pi Imager Failing to Verify Ubuntu Image Install to SD Card

I am trying to image Ubuntu onto an SD card on my Mac for use with my Raspberry Pi 4 using thew new official imager tool from Raspberry Pi (found here: https://www.raspberrypi.org/downloads/). For ...
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1answer
23 views

What is the difference between an operating system ISO that can be flashed to a harddrive, vs a copy of an installed OS produced with DD

I have to provision multiple Raspberry Pi's, and I thought I could simply copy one's memory card using dd to a file, and use that file to flash multiple new memory cards. I've tried this multiple ...
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1answer
33 views

How to get 10-bit depth black and white image from raspicam v2.1?

I am a little bit confused about image capturing by Raspberry pi camera V2.1 [1]. I work on the Raspberry pi 4 and I know how to get 8-bit depth black and white (BW) image from it on the C++ level ...
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49 views

python (2/3) functions to use a USB-camera? [closed]

After many attempts using pygame, or OpenCV to capture and display pictures from a standard USB-camera I decided to ask this question. Mplayer worked with all cameras I have tested (a=Logitech, b=...
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33 views

How to update GTK3 image using a button to capture a picture from the camera using C++?

I managed to create a program that will display some buttons and and Image. Now I would like to update the image when a button is clicked. How do I do that? Here is what I have so far, it all works ...
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1answer
27 views

Motioneyeos Download Help

Does anyone know of a way to download motioneyeos without using Win32DiskImager or Etcher? I am trying to download motioneyeos using a raspberry pi, and can't find a way to use a disk imager. Does ...
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2answers
78 views

What is the best way to automate the generation of bootable SDcard images for Raspberry Pi projects?

For a new project, I plan to release ready-to-use bootable SDcard image files for various Raspberry Pi models (2, 3, Zero, Zero-W). The actual OS will be PiCore, the RAM-only Linux variant based on ...
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1answer
69 views

Copy / Back up all images on Android phone to SD Card with folders

I am running a Raspberry Pi 4 Model B as a VPN Gateway with OpenVPN. On my Samsung S8, I have the app OpenVPN for Android installed and the VPN tunnel to my home network works like a charm. What I ...
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2answers
128 views

How to enable SSH without a Monitor or Screen

It's getting hard if you always plug HDMI cable to the raspberry pi, login and then turn the SSH service on with raspi-conf or other configurations methods. Is there any way to turn the SSH service ...
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77 views

Raspberry Pi - Line Scan like image

i got involved in a small hobbyist project in which a small ball has to be detected through a small gap. Accordingly there are only a view "lines" of a picture usable to find the vector "through" the ...
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3answers
73 views

Can I mount an USB stick (ext4) and create a backup of the Pi using the dd command?

I want to use the following command: sudo dd if=/dev/mmcblk0 of=/mnt/myBackup.img bs=1M What if the USB drive was formatted to vfat?
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2answers
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Determining correct image size for Raspbian backup to fit only real data on rootfs

I regularly backup my Raspi using a script that rsyncs rootfs and /boot onto a image created with losetup. This is the current branch I am working on: https://github.com/ephestione/RaspiBackup/blob/...
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1answer
400 views

How to Backup/Shrink the image of my working Raspbian SD Card

I want to shrink the image to minimise storage and to efficiently distribute this image to others who may have smaller SD Cards.
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1answer
37 views

How can I workout what encoding is used on this bitmap data?

I have a project that I am working on and it requires me to dynamically generate a png on my website from user input, then send that data to my webserver which ultimately creates a file for use with a ...
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1answer
467 views

USB Camera vs Pi Camera

I'm using USB camera for object detection. I can't find code for them because the common blogs or articles are about object detection using pi camera only. Is object detection possible with a USB ...
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55 views

Read framebuffer and save what's on screen over SSH

Is it possible to save as an image what the Pi is currently showing on screen. I have a Pi showing images using a Python script. The Pi boots up in console and I connect to it remotely using SSH/Putty....
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54 views

Compressing SD Cards & Kernel panic 179,6

The recent years I used a script to shrink my SD cards and then make an image from them. The good thing was it was rapid (~15min) and the image was also tiny, e.g. after a Rasbian lite installation ~2....
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1answer
101 views

Showing an image on screen attached to Pi via SSH

I am running a raspberry pi3b+ via ssh. There is a hyperpixel4 screen by Pimoroni attached to the Pi and it's working fine. I am trying to display an image on the screen attached to the Pi with a ...
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2answers
490 views

How to install Jasper on Raspberry Pi 3 (Model B)?

Sorry ahead of time, I'm new to Raspberry Pi's. I am trying to install Jasper by using its guide (https://jasperproject.github.io/documentation/installation/), but I cannot seem to figure it out. In ...
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1answer
123 views

webos image not working on raspberry pi 3

on: http://build.webos-ports.org/webosose/raspberrypi3/ There are several .rpi-sdimg files for raspberry pi 3. I have flashed a couple of them on to a SD card but when I power them up in my raspberry ...
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161 views

5 images(jpeg) per second OpenCV from purethermal 2 [duplicate]

Is it possible to capture 5 jpeg images per second from a purethermal 2 stream with opencv or another way on a raspberry pi for a set amount of time? If so how? (I have a FLIR lepton 3.5 on the ...
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1answer
229 views

Take 5 images a second, triggered by motion sensor, switching between 2 cameras depending on time

I'm working on a project similar to a security camera with a Raspberry Pi NoIR Camera Module v2 and a FLIR Lepton 3.5 on a purethermal 2. I am somewhat new to this and am not sure how to proceed. ...
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2answers
4k views

What is the best way to copy the whole rasbian image?

I want to create a copy of my current raspberry pi image with all the data and programms so that I can flash it on another sd card and run it from there. I have following problems: For some reason ...
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1answer
3k views

How do I Flash (install) Raspbian on Raspberry Pi Compute Module 3 / 3+?

NOTE: This question & solution ONLY relates to Compute Modules 3 or 3+ with on-board eMMC storage. The "Lite" versions of these has NO eMMC Storage I'm working on a project involving prototyping ...
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1answer
324 views

Open An Image on Host While SSH'ed?

I'm SSHing into my raspberry pi 3 and would like to display and image or video that's being stored on the pi on the monitor its connected to. Not the monitor of the computer I'm using to SSH. How ...
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1answer
113 views

Dependencies problem installing mmrcn

Hello i am trying to use ML techniques to identify cars in an image using opencv. I have been following this tutorial : https://medium.com/@ageitgey/snagging-parking-spaces-with-mask-r-cnn-and-python-...
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2answers
1k views

What is the fastest way to send commands to Raspberry Pi over ethernet?

I'm working on a IoT project. The idea is basically: I have a notebook running a Python program that get frames from an IP camera, process it, and based on the result change a Raspberry Pi GPIO pin ...
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0answers
43 views

change pi password on img before first boot, ssh [duplicate]

I want to be able to change the default pi:raspberry credentials on the image before first boot of a PiZero WH over the internet (phone hotspot, no home network). The default is a weak spot. I want to ...
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1answer
72 views

Display most recent image in folder on monitor

I currently have a receiver system that downlinks real-time images of earth from a weather satellite to a Raspberry Pi, where it then stores them as jpgs. What I am looking to do is automatically ...
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0answers
39 views

Cannot load image in a browser from external hdd

I have an external HDD connected to a Raspberry. I can read and write to the hdd, but when i create a simple tag in html, it does not load the image: <img src=/mnt/hdd/image.jpg /> The image ...
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4answers
8k views

How to edit Raspberry Pi files from SD card on Windows machine?

I am distributing multiple Raspberry Pi OS images, all images are almost identical, the only difference is that there is one file /usr/MyFolder/MyFile.txt which content is different for different ...
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0answers
53 views

Install WiFi Driver for Zero W without WiFi-Connectoin

I have this customized Raspbian Image, which I need to operate a DIY Hardware solution. The Image is configured for a Raspberry Pi 2 B+. I now want to use the Image for a Raspberry Pi Zero W. With ...
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19 views

Backup the system image, and restore with different size of SD card [duplicate]

I know how to backup system image, but what if I want to restore the image to a different size of SD card that does not match the one I backup from? Generally 2 cases: 1. The source SD card is 16G, ...
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1answer
36 views

How do I change current retropie to a ready to play img?

I was wondering if I wanted to change my current running retropie to another retropie img do I just remove the micro sd card and pop in another one with a different img
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2answers
31 views

Program not able to open file at start up but when running from command line, runs as expected

using a library from https://github.com/BLavery/LIBtft144 this line of code doesn't seem to run when I run the program from a systemd. I also tried calling it from a crontab call of my .py program. ...
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1answer
62 views

Viewing the contents of an IMG file

I have an retroPi img file that I wanted to view the contents for. I've burned the contents onto an SD card and when my Mac mounts the volume, I only see 50 or so megabytes worth of content, yet when ...
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3answers
125 views

Does this message mean my microSD card is worn out?

Was going through my usual process of writing a Raspbian image to a microSD card using sudo dd bs=1m if=/my_pi-zero.img of=/dev/rdisk3 conv=sync on my mac and I received the following message dd: /...
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1answer
123 views

Are there Restore Points alternatives on Raspberry Pi?

I have the following problem - we are distributing Raspberry Pi devices with our some software installed into it to our clients. Occasionally we need to update the current state of their OS (for ...
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1answer
137 views

I've flashed my Pi's SD card to reset it to a earlier state using an img of it but I'm getting this error in etcher all the time

This is the error that I’m getting in etcher. I've also tried the macOS disk utility tool to restore it but I'm getting errors there too. The error message is German but it says something like the ...
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1answer
1k views

Is there a way to run Raspberry Pi Image on Windows?

I have a Raspberry Pi with Raspbian Stretch OS installed, I want to take an image of its current state then run in it in virtual environment on my Windows machine, make some changes to the OS state (i....
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2answers
234 views

Fallback kernel.img possible in config.txt

I have a raspberry with a customized OS. The image it should load is described in the config.txt on the boot partition. The image is called zImage and the line in the config.txt is: kernel=zImage I ...
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1answer
28 views

Update a previous Raspbian image to rasp b+? [duplicate]

I'm sorry if the question has been already asked, I couldn't find it. I bought a raspberry pi 3 2 years ago, and I still use it with no problem. I bought a new rasp pi 3 b+ 1 week ago, and I tried to ...
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1answer
318 views

feh can't display image

I have written a python script that displays the image from the URL. def image_func(link_image): img_cmd = "feh -F %s" %(link_image) os.system(img_cmd) os.system("pkill feh") If I ...
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1answer
229 views

Seeking image file preconfigured for headless Pi Zero W

Rather than take a distro and follow instructions to configure it, I am looking for a preconfigured image file which I can write to SD and just use. Is there one, or is configuration absolutely ...
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2answers
1k views

Which images can be used universally across all Raspberry Pi versions?

My search failed this time so I'm asking here. Are there images that universally can be used across all Raspberry Pi versions? Original, 2, B+ 3, etc. For Armv6 and Armv7 architecture If they do ...
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1answer
470 views

Running Raspberry Pi .img file on an android device

I have a Raspberry Pi 3 and the lastest Raspbian is installed. I've run some java .jar file on it. Now, I run an armhf Debian on my android device with Linux Deploy. Is it possible to run Raspbian ....
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1answer
1k views

Win32DiskImager working with compressed files

Win32DiskImager is a cool tool on Windows except: we have to manually extract the ZIP file and then flash it, and then delete the ZIP it doesn't seem to work in command-line Is there a way to make ...

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