Questions tagged [image]

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

47 questions with no upvoted or accepted answers
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241 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 ... ...
3
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0answers
434 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 ...
2
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1answer
346 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. ...
2
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0answers
966 views

How to capture non-fish-eye video with wide angle lens?

We're using this fisheye lens: https://www.amazon.com/SainSmart-Fish-Eye-Camera-Raspberry-Arduino/dp/B00N1YJKFS/ref=sr_1_1?ie=UTF8&qid=1511631477&sr=8-1&keywords=raspberry+pi+wide When we ...
2
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0answers
3k views

Converting to SquashFS for BerryBoot

I have been following an online course on operating system development, named baking pi.I have successfully followed 'OK01' As I don't have 2 SD cards, and I find it fiddly to swap operating systems ...
2
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0answers
2k views

Bad magic number in super-block when trying to resize RPi image

I'm trying to follow RomanG's instructions in this thread: http://www.raspberrypi.org/forums/viewtopic.php?f=91&t=19468 on the Raspberry Pi Forums in order to shrink a Raspbian Image to fit on a ...
1
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0answers
54 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 ...
1
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0answers
178 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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0answers
135 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 ...
1
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0answers
331 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 ...
1
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1answer
549 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 ...
1
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0answers
516 views

Displaying only video/image while python program running on background

I have a Raspberry Pi 3B with a Python3 code running 24/7. Right now, I'm running Raspbian Stretch desktop on console mode with no I/O. I only connect a screen via HDMI and an USB keyboard for ...
1
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0answers
142 views

Display Real-time processed images in Raspberry Pi

I am working on real time image processing in raspberry Pi. Goal is to fetch and process 64x64 frame with 60 fps. I am using numpy to process these frames. And i want to display these processed images ...
1
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0answers
449 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 ...
1
vote
1answer
825 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 ...
1
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0answers
84 views

Lowering SD card image file

I try to clone my RPi SD cad to another one under Linux. Of course I created img file using dd command. SD card consist two partitions. First - bootable FAT formatted (small one) and second EXT4 ...
1
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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 ...
1
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0answers
60 views

PI Camera and Bitbanged GPS -> Fluctuations?

I again got a bit of a problem. I am using a Raspberry Pi to BitBang Data out of a UBLOX Gps. I got this working and am receiving the NMEA information as i need it. Now I added Image acquistion to ...
1
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0answers
396 views

Webcam doesn't work on Raspberry Pi VIDIOC-QUERYMENU: Invalid Argument

So I wrote an image processing program in Python on my windows computer and it works fine there, but when I try to run it on the Raspberry Pi I get VIDIOC-QUERYMENU: Invalid Argument a bunch of times. ...
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0answers
58 views

Developing a replication process

i've been developing a product which i would like to deploy to a few dozen raspi's and the issue is, once i develop a release, typically less than 500mb it is on a 4gb sd card and i can't find a ...
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0answers
6 views

Compatibility of system images between RPI 3B+ and Pi Zero W

Can I start a PiZero W with a system image file coming from a RPI 3B+ ?
0
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1answer
40 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 ...
0
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0answers
41 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 ...
0
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0answers
26 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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0answers
80 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 ....
0
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0answers
75 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 ...
0
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0answers
20 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 ...
0
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1answer
47 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 ...
0
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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 ...
0
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0answers
24 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 ...
0
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0answers
174 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 ...
0
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0answers
29 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 ...
0
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0answers
81 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....
0
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0answers
152 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 ...
0
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0answers
114 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 ...
0
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1answer
389 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 ...
0
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0answers
2k views

What could I do to optimize rendering time of image with tkinter?

I've been working on a project using Python 2.7 and TKinter which needs to render 25 images per second based on GPIO inputs. I have working code on my Ubuntu laptop, which is able to render an image ...
0
votes
1answer
114 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
0
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1answer
68 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 ...
0
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0answers
278 views

Relax-and-Recover Bootable Image Types that work with the Raspberry Pi?

Are there any bootable image types that Relax-and-Recover creates that could be booted and used to restore the system layout on a Raspberry Pi / Jesse 8? I know that the system layout of the SD Card ...
0
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0answers
1k views

Facial Recognition on Raspberry Pi using GoPro

I was wondering if someone can tell me how to process a live video feed on the Pi (B) using a GoPro camera? I understand that there may be processing constraints. Then, I would like to do image ...
0
votes
1answer
112 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 ...
-1
votes
1answer
85 views

1 Gigabyte Image with GUI and Firefox

I'm looking for a super small image for my Pi < 1 gigabyte. I need it to fit within the memory of the Pi. I only have 4 requirements: long term availability, a Gui, Firefox, and ethernet drivers. ...
-1
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2answers
48 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 ...
-1
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1answer
143 views

Raspian Image Duplication error - Raspberry Pi

I am working on a raspberry pi project and I am having trouble duplicating the OS image. What I am trying to accomplish is creating an exact bootable copy of the working OS with its files and settings ...
-1
votes
1answer
200 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 ...
-1
votes
1answer
1k views

How can I mount image file in Raspbian?

I am working on a scientific project for which I build inexpensive radio receiver based on Raspberry Pi 2. Sorry, I am new with Raspbian and ask stupid questions. For example, for the radio receiver I ...