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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1answer
111 views

Is it possible to obtain multi-spectral images with pi zero camera OV5647?

I am trying to capture multi-spectral images with a pizero camera V2.0 with Ssensor OV5647. I want to know how is it possible or if there is some commands? Thank you
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1answer
22 views

Create Pi image from wireless headless Pi for distribution - remove SSID and password

I want to create a Pi image that I can distribute to others. I have the basics down for doing this for myself, and it works. But for my own use, that fact that my WiFi SSID and password are included ...
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1answer
15 views

Copying sd card with dd, can't boot: "sh: can't access tty; job control turned off"

I have a working SD card which I want to back up to an .img file and be able to quickly replicate. I'm using dd to copy my image to my sd card: dd if=raspbian.img of=/dev/sdc bs=4M Which executes ...
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2answers
901 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 ...
4
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1answer
237 views

Write Image to SD Card per SSH

I want to write an SD Card Image to a SD Card inserted in the Raspberry PI. What I have done (and it is working): Login to Raspberry an change the /boot/cmdline.txt a NFS Root (Something like ... ...
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1answer
514 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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1answer
387 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
808 views

(RetroPie) (MAME) Are there prewritten ROM sets that fit into specific Micro SD sizes?

I noticed the MAME sets at Archive.org MAY work with Retropie OS, but it's over 200 GB, and I was wondering if there was any way of knowing which games will or won't run, or if there were prewritten ...
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1answer
332 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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1answer
1k views

NoIR V2.1 camera auto white balancing

I have a Raspberry Pi NoIR V2.1 camera. I am working with the NIR (940 nm) LEDs and I saw that I was getting funny/weird colors, so I assumed that it is due to the white balancing, so I switched off ...
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1answer
43 views

Testing a Raspberry pi image in a docker container

I would like to make a smoke test of a Raspberry Pi image in a docker container. I am building the image using packer.io and the build-arm-image plugin in a gitlab pipeline inside a docker container. ...
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0answers
38 views

USB Camera on Raspberry Pi

I'm trying to run a USB camera on my Pi, but haven't found any ways to take a still image on it using Python. Has anyone seen any projects where a still image is taken on a USB cam? I am looking to ...
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1answer
42 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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0answers
24 views

Average images directly from the buffer

I am writing a script in Python for continuous long exposure image recording that saves n images into the buffer as shown: outputs = [io.BytesIO() for i in range(0, n)] camera.capture_sequence(outputs,...
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2answers
47 views

WiFi - No Support in Old Image

I have a old Raspberry Pi model 2 B - with no GUI support for WiFi and no image that support WiFi. I now have a Raspberry Pi Zero that support WiFi, i use the old image on this. sudo apt-get update ...
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3answers
27k views

How to shrink an image file after allocating full space

I'm in the process of experimenting with backing up a Raspberry Pi (Raspbian) sd card. I'm using Win32DiskImager to read the image (from SD card reader) onto my HDD, successfully - but now the size ...
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1answer
67 views

one RPI's capability to multi-task with complex Image Processing

I, as part of a project, have decided to implement a small scale version of automated collision avoidance system. I chose to go with Image based object detection. After initial research, I figured out ...
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11answers
51k views

Copy existing Raspbian installation to smaller SD card

Is it possible to copy an existing and configured Raspbian installation to a smaller SD card? When I first installed Raspbian I only had a 32 GB card at hand which obviously is bigger than needed.
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0answers
25 views

Cloning my Raspbery Pi OS without an SD card [duplicate]

I'm running this OS version on my raspberry pi version 4 ... # uname -a Linux raspberrypi 5.10.17-v7l+ #1421 SMP Thu May 27 14:00:13 BST 2021 armv7l GNU/Linux I want to clone my current OS into a ...
11
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5answers
9k views

DD claiming to write to SD card, not doing anything

I'm running into an issue where if I attempt to flash a microSD card with sudo dd bs=4M if=some_pi_image.img of=/dev/sdb It claims to have written the image at about 1.9 GB/s, with output: 1088+0 ...
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2answers
37k views

Take images in a short time using the Raspberry Pi camera module

I'm working on a project in which I need to take about 30 images per second (no movie) using the Raspberry Pi camera module. I'm using the Picamera library (http://picamera.readthedocs.org/en/latest/...
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1answer
198 views

Patch a RPI image to get a root shell

I'm trying to reverse engineer an appliance based on RPI2, and I would like to get a root shell on the system. After dumping the SD I noticed that there's no rootfs partition (it exists but it's ...
2
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1answer
55 views

How can I figure out why two closely related Raspberry Pi OS image files vary substantially in size despite having nearly identical folder sizes?

I have two disk images, compressed with the xz algorithm and shrunk using the PiShrink tool, that are 669.5MB and 1.03GB respectively. The thing is, the smaller image was copied from the larger one ...
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0answers
61 views

How to flash Emteria OS image files to USB drive?

I downloaded the Emteria OS images using their installer. Now I have 4 files in the destination directory: boot.zip oem.zip system.zip package.json Each ZIP file contains a file with the extension ....
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1answer
66 views

Can you only flash an image to a micro sd once? "error reading from storage. sd card may be broken."

so I'm facing an issue with the flashing process of the micro sd I'm using. I recently had the Raspbian OS installed on this card previously, but when messing around with the terminal attempting to ...
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2answers
31 views

Attempting to overwrite newly imaged SD card with older partition

So at some point I think a power failure 'did for' my old SD card in my Pi. I've tried overwriting the boot partition with a newer one but it just isn't booting. I get the rainbow screen. HOWEVER, if ...
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3answers
10k views

Win32diskImager "Not enough space on disk Size: 62652416 sectors. Available: 62333952"

I've been careful to buy the same Samsung 32GB SD cards for all my Rpi3 systems to avoid the dreaded Win32diskImager size error. All of the Rpi images are stored safely in the NAS as .img files. ...
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1answer
55 views

Is there a way to add SSH public keys to the SD card image before booting?

For headless initial configuration, it is possible to add WiFi login details by adding a wpa_supplicant.conf file to the image boot partition. Is it possible to add SSH public keys in a similar way? ...
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0answers
52 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 ...
5
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4answers
349 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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1answer
39 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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5answers
2k views

Can't properly flash some micro SD cards

I have a couple of Micro SD card here and it seems like only some of them can be flashed correctly. No errors during the flashing process, but only the boot partition turns out to be mountable on my ...
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0answers
19 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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4answers
11k 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 ...
1
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0answers
49 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 ...
94
votes
9answers
119k views

Can a Raspberry Pi be used to create a backup of itself?

This question answers the question of how I use an external computer to create a backup of my RPi. I'm wondering whether I can create a backup image of the SD card that is currently in use, and ...
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0answers
17 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 ...
1
vote
1answer
70 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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0answers
22 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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2answers
43 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-...
0
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1answer
94 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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4answers
496 views

Block script excecution when fbi is displaying image

I use omxplayer for videos and fbi for images. My problems is that when command fbi run the nex command will run at the same time. How can I serialize the fbi commands so that images and videos are ...
0
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1answer
99 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 ...
1
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2answers
13k views

When I try and import Image drivers in Python, it says "No module named 'Image'"

When I import the code from this project: http://frederickvandenbosch.be/?p=1365 and run the code on the Pi, I get this error. I installed the Adafruit_SSD1306 library and it still does it. Any help ...
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1answer
458 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
52 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....
2
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3answers
491 views

How to create duplicate images, but change a couple of files

I'm in the process of creating around 20-40 rPi's with the same software running on them. Everything about the software running on the different Pi's are identical, except for two things: The ...
0
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0answers
108 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 ...
47
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5answers
82k views

How can I mount a Raspberry Pi Linux distro image?

Normal filesystem images can be easily mounted: mount system.img /mnt Examined, and modified. But when I try this with a Raspberry Pi system image (e.g. raspbian), I get: mount: unknown filesystem ...
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0answers
69 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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