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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16 views

Transmit JPG Images from Raspberry Pi to PC (GCS) - UART [closed]

Hello I am looking for someone to help me construct a code where I can send images via UART. The main issue that arises within this is rebuilding the picture (JPG) in the GCS receiving end after it is ...
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27 views

Unable to write ssh file in boot partition on microSD using Windows for headless Raspberry Pi OS lite install

This is my first time working with any Raspberry Pi. I'm trying to set up my pi zero for pi hole. Following an online guide, I downloaded Raspberry Pi OS Lite and used Raspberry Pi Imager to image the ...
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8 views

fbi freezes system and other apps

I'm trying to display an image to HDMI output with fbi. I have a 3.5-inch touchscreen and a video projector as output. fbi works fine but the problem is that fbi freezes the system while shows an ...
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1answer
29 views

Qt Quick cross compiled application didn't show images on raspberry pi 4

I cross compiled Qt5.14.2 for my raspberry pi 4 on a raspberry pi OS lite after that I created a Qt Quick application on my Ubuntu and I integrated images in my qml file Image { id: compteur ...
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1answer
29 views

e2fsck on Raspberry Pis

I need to run e2fsck on the raspberry pi, because I want to create a shrinked Backup. I have mounted an external server inside /mnt/BACKUP. There I have created an bash script. It will first create a ...
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36 views

HTML webpage not displaying picture!

I have a headless Pi Zero that's connected to the internet through the USB ethernet gadget from my computer. Through SSH (with Powershell), I'm running a Python3 script on the Pi which will start an ...
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15 views

Looking for a “high resolution” LED strip

I'm trying to find a high density addressable led strip, mean as many LEDS crammed as close together as possible and their colors can be changed individually. I want to make a spinning blade of LEDS ...
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1answer
21 views

Imager fails to write to CM3 eMMC

I am trying to flash an image onto a Compute Module 3+ with onboard eMMC using the CM I/O board. The process seems straightforward, but I'm running into an error. Here are the steps I'm taking: ...
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20 views

Unsuccessfully trying to recover files from damaged image mounted on SD

I corrupted an RPI SD card earlier with rubbish FSTAB, wouldnt boot, couldnt edit, mounted rw, FSTAB read-only. Got tired of trying so stuck in a new OS and plugged old image into USB. Now i have 2 ...
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1answer
42 views

Images with Multiple kernel to share among Pi-B, Pi-3 and Pi-4

I have 3 models of Raspberry from ARM-v6 to ARM-v8 and would like to have SD cards that i can exchange among them. After testing my SD IO have realized that Retropie and RaspberrOS works well on Pi1 ...
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2answers
39 views

Raspberry pi Image with Debian got different startsector. Is this a problem?

Raspberry pi Image with Debian got different startsector. Raspbian image start at 8192. Debian for Raspberry start at 2048. I want use dd in linux to put on the sd-card https://raspi.debian.net/tested-...
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1answer
80 views

Shrinking image file I cant open [duplicate]

I have a certain custom Raspbian image downloaded from the internet for a project which I need to use. The file is a little less than 32 GB and I am having issues getting a card which can fit that ...
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1answer
229 views

Use Overlay, ext4 and squashfs filesystems, to create flashable Raspberry Pi SD Card

Here's one for the guru out there.. I use a Raspberry Pi 3B+. It has an SD card with two partitions. So the layout is: mmcblk0 179:0 0 59.5G 0 disk ├─mmcblk0p1 179:1 0 256M 0 part /boot ...
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2answers
45 views

Ubuntu MATE thinks it knows my IP address but is wrong

I am trying to boot my Raspberry Pi from an image (I created) burned to an SD card. I set up the image on another Raspberry(we will call it 4GB). etc/NetworkManager has the password of the WiFi stored....
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64 views

Picamera use_video_port=true low quality images

When I use use_video_port=True with capture_continuous() or capture_sequence() the image quality seems low with the following code import io import time import picamera from PIL import Image with ...
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48 views

Is it possible to display image from buffer to framebuffer?

Looking for a way to display image from buffer (without writing image to filesystem) to the framebuffer. The idea is to compute and display QR codes without needed a desktop environment. Possible?
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2answers
191 views

Creating my own raspberry pi img

I have used my raspberry pi for a specific project, where I had to change some configuartion in the rpi, install some dependencies and create a service so it launches at boot. Now that it's all done, ...
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1answer
244 views

Raspberry Pi Imager Not Recognizing sd card

I bought this canakit raspberry pi 4 and I have been trying to get retropie flashed on to this sd card, but raspberry pi imager is not recognizing the sd card. The card isnt bad because otherwise the ...
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1answer
41 views

Delete Wifi Credentials from Raspbian cloned image

I have a custom Raspbian image (based on Raspbian lite + some additional software installs) and I would like to clone this image and distribute it as part of an opensource project. How can I delete ...
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0answers
52 views

Which is more efficient for raspistill: `-vf -hf` or `-rot 180'? (Raspberry Pi Zero W)

According to the official documentation, With the camera placed upside-down, the image must be rotated 180° to be displayed correctly. The way to correct for this is to apply both a vertical and a ...
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79 views

Unable to boot custom built alpine image

I'm trying to build a custom Alpine Linux image for the raspberry pi. I'm using below script with some customisations, however, when I try to boot the image on the pi, I cannot get anything. The light ...
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1answer
102 views

Installing fresh image of operating system on Raspberry Pi 2

I have an older Raspberry Pi 2 that I'd like to put the latest compatible OS on. The specs of my Raspberry Pi: Raspberry Pi 2 Model B 1 GB from Canakit.com It came with a 8 GB SD card. I bought it ...
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2answers
294 views

Creating image of Raspbian after installing packages?

I would like to create an modified img file which I can flash to a large number of devices. The idea is that I create a clean raspbian version, install different packages manual on one device and ...
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4answers
280 views

OS image made using Pi-Gen lacks JPEG support in GTK

I recently started using Pi-Gen to generate customized prebuilt Raspberry OS images for use with a RaspberryPI 4. I use the build-docker.sh script on a Linux Mint VM. However, in a test run with ...
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2answers
204 views

How can I host images for my website on my Raspberry Pi? [closed]

My Raspberry PI runs 24/7 and I would like to be able to host images that are stored on that PI for my website. How can I go about doing this? Sorry for the lack of detail, if you have any questions ...
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1answer
113 views

How to fix frozen boot screen on R Pi?

I've installed the image Raspberry Pi OS (32-bit) with desktop and recommended software to microSD HC (Smartbuy 32gb) using Raspberry Pi Imager for Windows. Turning my R Pi on leads to loading screen ...
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1answer
118 views

How to backup a compressed version of your raspberry pi sd card image on Windows 10?

I'm interested in backing up my hard work and time invested RPi image with all packages setting and files installed in there and put it on a RPi zero w from RPi 4B so I've seen this thread on the ...
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1answer
139 views

raspberry pi zero w downloadable os image? [closed]

I have a pi zero w that was working fine until a power cycle, it came back up with no wifi. I asked on the raspbian forum and got a suggestion that an unplanned power cycle might have borked the ...
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2answers
189 views

SSH - Not able to ssh from my laptop to raspberry after rebooting the pi

Greetings to the community! I am struggling establishing an ssh connection from laptop (Windows 10) to my pi connected to it through an Ethernet cable (raspberry pi 3 model B+). The process I am ...
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0answers
116 views

Is Raspberry Pi fast enough for realtime video processing?

I want to use Raspberry Pi 3 B+ on my RC airplane for a realtime image classification task. Airplane will be flying at an altitude ranged between 10-30 meters with a airspeed of 15m/s. What I need is ...
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3answers
2k views

Raspberry Pi Imager says “Input file is not a valid disk image.”

I'm attempting to put Raspbian Jessie on an SD card. (I'm choosing Jessie to eliminate a possibility of incompatibilities with the SW I plan on using. I may use Buster after getting everything working ...
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1answer
31 views

Operating systems with serial OOTB

Which Raspberry Pi operating system images have a serial console enabled out of the box? This is needed for a client to debug why they are not getting HDMI out of their Raspberry Pi 4. The client does ...
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0answers
24 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
45 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
595 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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4answers
7k 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
38 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 ...
3
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1answer
522 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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0answers
67 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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0answers
72 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 ...
2
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1answer
63 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
248 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
283 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
327 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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0answers
254 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
180 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
98 views

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/...
2
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1answer
2k 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
96 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 ...
2
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1answer
1k 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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