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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Captured image file from PiCamera is 0kb, why?

I use the following code to capture an image from PiCamera: from picamera import PiCamera from time import sleep camera = PiCamera() camera.start_preview() sleep(5) camera.capture('/home/pi/Desktop/...
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1answer
208 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
147 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
58 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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1answer
775 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
328 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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0answers
391 views

Mass deployment on Raspberry Compute Module 3.0

I am looking for the easiest method to backup/restore/mass deploy the raspberry compute module. (1000+ pcs) I though about creating an image with raspbian and opencv but I still need to connect the ...
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1answer
434 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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46 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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1answer
247 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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Restore PI from Pi itself

Just started playing around with a raspberry pi model b+ I've had sitting around for ages and I had a question? Is it possible to restore a Raspberry Pi from itself? E.g: Can I put an image on the ...
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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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1answer
862 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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3answers
5k 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
505 views

Help: failed building Alpine ISO image

I plan to build a custom Alpine ISO image for Raspberry Pi by following instructions in https://wiki.alpinelinux.org/wiki/How_to_make_a_custom_ISO_image. However, when I followed the instructions, I ...
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1answer
4k views

How to make an image file from scratch

I want to make my own image file for a Raspberry Pi so I can copy any usable operating system to it and boot it. This way I'm also able to size down partitions or use other partition sizes. Is it ...
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3answers
1k 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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2answers
698 views

Combine/Merge different Raspberry Pi Images

I tried to find something about it, but I didn't found anything. I want to run the two images of Picroft and Pi MusicBox or Volumio on the same Raspberry Pi. Is there a way of merging/combining two ...
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101k 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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1answer
23 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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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
40 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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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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1answer
574 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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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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3answers
322 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 ...
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1answer
49 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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2answers
39 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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1answer
61 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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2answers
262 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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5answers
55k views

Copy current SD image to larger SD card

So I got my new pi and the only free SD I had was 2GB. I couldn't hold off playing with it so it had to do for the time being. I loaded raspbmc and then spent time loading repositories, add-ons and ...
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85 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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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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2answers
108 views

How do I image an SD Card without the dead space

I have raspbian setup and configured ready to replicate to other pi's. The source sd is a 16GB memory card but only 5GB is used. When I use win32 image to backup, it images the whole 16GB. How do I ...
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0answers
40 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
108 views

Raspberry Pi boot error after restoring from image

a few days ago my raspberry started to have problems while running which pointed to a defect file system. So I wanted to restore it with an image I made before one week, when everything worked fine. I ...
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2answers
95 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
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
171 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 ...
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1answer
294 views

Cannot take picture with Canon Rebel XT connected to Pi3 via gphoto2

When I try to take an automatic picture with my SLR camera (Canon Rebel XT) via the following command in gphoto2: gphoto2 --trigger-capture It returns an error as follow *** Error *** ...
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1answer
538 views

How to allow non-root access to /dev/tty7

I have problems running fbi without sudo. As user pi running fbi -noverbose -nocomments -T 7 -1 -t 10 test.jpg or fbi -noverbose -nocomments -T 1 -1 -t 10 test.jpg I get an error /dev/tty7: ...
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1answer
538 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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9answers
45k 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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2answers
76 views

Flashing Raspberry Pi CM V1.1 on a proprietary board

So I don't know much about Linux or the Raspberry Pi (Especially the compute module), But I've managed to obtain one that is using a custom/proprietary board alongside it. All the thing is currently ...
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1answer
115 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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0answers
37 views

Resizing Raspberry Pi Image [duplicate]

I am trying to make a backup of my raspian image, so I can distribute it to more Raspberrys in the future. I used dd for that, but as my sd card is larger then the image, I ended up with a 16 Gb file ...
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3answers
2k views

Stereo camera frame synchronization/genlock (video or still image)

I need to frame synchronize a stereo camera for a computer vision application. The synchronization should be on a millisecond level possibly. I would like to get about 10 FPS either as video or still ...
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2answers
150 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
108 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
79 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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