Questions tagged [images]
Something related to visual data files
355
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2
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50
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Capture a jpeg image / image stream from a console program?
I'm running a headless Raspberry Pi, and would like to convert the console/terminal output to a single jpeg or video stream.
For example: capture the output of pbytop every few seconds and stream it ...
- 111
0
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0
answers
17
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Make GNOME Image Viewer not cycle
I'm using GNOME Image Viewer (ver. 3.38.2) as default, and I navigate lots of data-visualization by using the arrow keys on the keyboard. The data sets could look similar but subtly different, which ...
- 15
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0
answers
22
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Can I put images in an email using a text based email client?
Can I use a text-based email client to embed images in my emails?
Outlook is really inefficient and it drives me crazy. But I'd still have to embed emails.
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1
answer
38
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Exiv2: How to print tag values without printing the corresponding filenames
I'm using exiv2 0.27.2. I want to print the tag values of multiple webp files, but without the filename being printed.
With the following command:
exiv2 -g Exif.Image.Artist -Pv *.webp
I get the ...
- 2,337
10
votes
2
answers
725
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How can I get the number bytes to write per row for FrameBuffer?
Goal: I'm writing a very simple image viewer for framebuffer /dev/fb0 (something like fbi).
Current state:
My software takes the pixel resolution from /sys/class/graphics/fb0/virtual_size (such as ...
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1
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0
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34
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The fsck: error2 error occurred when running the image
I'm using qemu to run an image. If the mirroring is successful, I then run on gem5.
The image I use is at this website.
http://dist.gem5.org/dist/v20-1/images/x86/ubuntu-18-04/boot-exit.img.gz
I use ...
- 183
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27
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How to put files into the image more conveniently?
I have an image file boot-exit.img.
$ file boot-exit.img
boot-exit.img: DOS/MBR boot sector
I want to put files into this image .
This is too much trouble. I always move the local run.sh to the /home ...
- 183
0
votes
1
answer
122
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Why and how is the Linux kernel image compressed?
Why and how is the Linux kernel image compressed? Isn't it pointless to compress it, when the image is and must be (as far as I know) uncompressed in RAM? How can it even be compressed? How can the ...
0
votes
2
answers
162
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What is the difference between vmlinux and vmlinux.bin?
What is the difference between vmlinux and vmlinux.bin?
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-1
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1
answer
118
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png images to single pdf
I have Version: ImageMagick 6.9.10-23 Q16 x86_64 20190101 on Ubuntu 20.04.
I tried convert *.png out.pdf to convert 70 png files into a pdf, but strangely always only 18 pages in the pdf file. I didn'...
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43
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How can I get my SVG icon to automatically change its colour depending on the background colour?
I am trying to add some icons into ~/.local/share/icons/ so that I can use them with notify-send. I can do that just fine, but the icon colour is not adapting to the background, unlike the Adwaita ...
- 11
0
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0
answers
100
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Extracting Images using pdfimages: Getting 3 Images Per Page: .jp2, .png, .jb2e
Using pdfimages -all on a .pdf file, each page of which is text, I'm getting 3 images for each page in the pdf:
Foo-001-000.jp2
Foo-001-002.png
Foo-001-002.jb2e
The first file is mostly blank, but ...
- 566
1
vote
0
answers
21
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Create Ubuntu image without USB or Rebooting
I want to create a backup image or a snapshot of my Linux Ubuntu 22.04.1 system. Is there any way to do it without using USB stick, rebooting the system.. Basically, do it in the 'background' while I'...
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1
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0
answers
128
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Why is the Image file a PE executable
I've been trying to compile a linux kernel on my own machine with the source linux-6.0-rc5, which is the latest. Everything goes well yet something haunts me. When I get the Image file under arch/...
- 11
0
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0
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37
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opening large file with Gnome Image Viewer crashes
I couldn't find a good answer for this. I am trying to open a 32720x24000 image but when I try and open it with Gnome Image viewer it crashes!
I am able to open it with XnViwer and showPhoto. But they ...
- 101
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2
answers
171
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How to use jpegoptim to have files only 20kb in size?
I have tried using jpegoptim and even tried the manpage but am stumped. Here is a file I want to reduce to 50k and even open to reducing quality of the data -
Image:
Filename: shirish.jpg
Format: ...
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0
answers
43
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Determine dimensions of GIF image
How can I determine the image dimensions I need to use on my site at http://orcacomputers.com? I want to ensure I get the correct image dimensions for a file named patten.gif.
I have an Apache error ...
- 417
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0
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163
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Mount *.qcow2 images with read-write permission
I know how to mount *.qcow2 images as read-only under linux, but is there any way to mount these images with read-write permissions?
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Is it possible to run a hybrid pc on drastically low power consumption while still displaying a slideshow?
I've bought a Surface Pro 3 for my elders, and installed ZorinOS on it -- a great distro for hybrid pcs btw!!
One stuff we'd like it to do is to act as a digital photo-frame by running a slideshow of ...
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1
answer
14
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Restore images / pictures chunked into many files
i am trying to find a way to restore image files that got chunked due to a restore from a broken harddrive.
I am not sure if those files are in correct order or are at all recoverable as images.
...
- 101
0
votes
1
answer
293
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V4L2: Why image taken with shortest exposure-time looks way too brighter than auto-exposure mode?
When capturing image using the default auto-exposure-mode:
$ v4l2-ctl -d0 --set-fmt-video=width=width,height=height,pixelformat=MJPG --stream-mmap --stream-to=auto_expo.jpg --stream-count=1
auto_expo....
- 450
1
vote
2
answers
45
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What program is best for outputting an image with my inputted text on it?
I'm looking for a program that is able to output an image with my inputted text on it.
Sort of like a template, I would input varying text / numbers and an image, and the program will output the image ...
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-1
votes
1
answer
524
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HTML not loading local images in any of my browsers in my system [closed]
Problem
In my main desktop system running Arch linux, when I create an HTML file with a tag and an image like so:
<img src="imagepath" alt="sometext">
the image does not ...
- 1
3
votes
1
answer
40
views
Take a picture or a screenshot with my voice
I spend a lot of time taking pictures with a usb camera attached to a microscope. Thing is... I need to manipulate the plaque with my two hands, so moving one hand from the microscope to the computer ...
- 185
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votes
1
answer
411
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CLI tool that compress the given image, whatever file type the image is (png, jpg, gif, webp, svg)?
I know that there are many tools to optimize an image:
pngquant
optipng
jpegoptim
gifsicle
exiftool
ecc
but they are all specific for a certain file type. Is there a single command line that, ...
- 235
0
votes
0
answers
35
views
software for editing 2 images at the same time
I am looking to find if possible a tool which can take a area screenshot and let me edit it like so:
however I also want an image like this to be created simultaneously after editing the first image:
...
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0
votes
1
answer
388
views
What are the weird characters from an image file?
So i am pretty new to linux and i am learning basic commands. I am also very interested to know how things work under the hood, so sometime after i learned both the cat and nano commands, i tried ...
- 13
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301
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How to control webcam's exposure time (using V4L2) based on the certain pixel's value?
I'd like to control the exposure time such that certain average value of certain window (e.g. 10x10+230+70) always fall between 100 to 220.
/p.s. Camera is monochrome/
Something like following:
loop
...
- 450
1
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0
answers
46
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Is it possible to repair a jpg that doesn't "look" broken? [duplicate]
I have many photos that were recovered a long time ago, at the time I recovered them and everything looked fine, the thumbnails produced looked good. However now, 16 years later. I see that the images ...
- 121
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1
answer
120
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How to make sure images captured by FFMPEG from USB is lossless?
I'm to capturing 10 images from camera. Like so:
ffmpeg -hide_banner -loglevel error -f video4linux2 -i /dev/video0 -vframes 10 -video_size 640x480 test%3d.jpg
Since JPG is lossly, at I need to ...
- 450
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0
answers
19
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How can i get the icon file from a notification?
I want to use the cover art from Spotify in a widget and the only way i found to get them offline is as the icons in the notifications, but i couldn't find anything about saving icons. I am using the ...
0
votes
2
answers
90
views
Scale images to fixed target pixel size
I want to reduce the size of my JPG images to the same total pixel size (e.g. 6MPx) no matter of the input size or ratio.
Of course mogrify or convert can resize:
This ...
mogrify -resize 3000x3000 ...
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1
vote
1
answer
318
views
How can I display an image coming as a binary stream?
I would like to display an image that I am receiving from a curl command. For example, I would like to display it using Eye of Gnome. How can I do that?
Something like:
curl https://example.com/image....
- 193
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votes
0
answers
150
views
How to visually freeform select and save the part of an image in linux without gimp?
Pretty much as per title: How to visually freeform select and save the part of an image in linux without gimp?
In other words how do you freeform select/cut out something from an image and save this ...
- 299
6
votes
1
answer
523
views
How to tell if an image contains a specific color?
Is there a command line tool to tell me if an image contains a specific color? For example, if it contains #ff0000?
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votes
1
answer
522
views
Using dd to restore multiple partitions from multiple image files to same destination drive
I want to use dd command to create image file(s) from a source machine then extract it using dd to a destination machine.
But the catch is that mount points / and /home are on separate partitions on ...
- 249
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votes
1
answer
85
views
How to tell the integrity of a recovered file, specifically if pixel data of recovered image is corrupted
I delete a file from disk, then do some write operations on the same disk, and then run a recovery program to recover the said file.
Is there any way to check the integrity of the file?
Let the ...
- 113
0
votes
1
answer
199
views
html file to picture on cli of ranger preview
I would like to preview html files in ranger as pictures similarly how pdf files can be previewed. I imagine first it would be needed to force it into A4 page or something of the like, so it's a ...
- 445
2
votes
3
answers
1k
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Point out my mistake while converting TIFF to PNG/JPG
This is a input tiff image, which I want to convert to JPG/PNG. googledrive-link-to-download-sample
As general rule of thumb, I always use following command to convert between 2 image formats (mainly ...
- 450
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vote
2
answers
132
views
Can I pull an image down from a repo and save it locally as a different name?
I can pull down an image with podman pull
podman pull alpine:3
This currently pulls the image down as,
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io/library/...
- 26k
0
votes
1
answer
120
views
How to view a list of files from a file as an image gallery?
I have a txt file I created with find with the path of many files in different locations, separated by a newline. I want to navigate through these files like an image gallery, preferably with ...
0
votes
1
answer
229
views
Find images with specific pixel height/width and move them in another directory
I want to find screenshot files, having a specific pixel height of 2220 and width of 1080, and want to move them into another folder. That's nothing I can do manually, as the source is 100+k images or ...
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3
votes
1
answer
58
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pic(1): graphic cut off at right border
I created a graphic in the pic language as follows (v-modell.pic):
.PS
AF: box wid 1.6 ht 0.25 "Anforderungen"
SA: box same "Systemarchitektur" at AF.se + (0.1, -0.5)
KA: box same &...
- 523
0
votes
1
answer
66
views
Image get distorted after being sent via broswer
Hello I am using parrot OS, and My problem is whenever i capture the screenshot at my linux machine and try to send it via browser or web.whatsapp. The image get's distorted. Please Have a look at ...
1
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0
answers
301
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Cheese screen black with good webcam under CentOS Stream
I have a webcam that works like a charm when connected to Ubuntu 20.04 LTS:
$ uname -r
5.11.0-7614-generic
$ sudo hwinfo | less
...
24: USB 00.0: 0000 Unclassified device
[Created at usb.122]
...
- 393
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votes
1
answer
89
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How can I use one input file into several separate operations
I would like to read one file, do an operation with several different parameters on it and finally save each output as a separate file.
Currently I do it as shown in the code snipped below.
This reads ...
- 166
4
votes
1
answer
2k
views
Markdown & Pandoc : How to include a specific PDF page as image?
It is currently possible to insert a PDF as an image in markdown files through pandoc by doing this:
# Hello World
Then you convert that markdown file with pandoc:
...
- 771
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votes
4
answers
394
views
Is there a way to view web images from the terminal?
I want to be able to view the images inside a repository about wallpapers. Going through every image takes to long with the browser. I wonder if exists a program which I can accomplish this, view ...
- 97
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1
answer
762
views
Invalid MIT-MAGIC-COOKIE-1 key% WIDGET_CONTROL: Unable to connect to X Windows display: localhost:11.0
I am trying to run IDL from remote in terminal window. I would like to produce an image in a png file from remote without the pop-up window in my terminal (for some reasons that I do not know pop-up ...
- 21
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votes
2
answers
461
views
Extract jpg property 'keyword' from terminal
Using Ubuntu 20.04, I can right-click on a jpg and select 'properties'. A window will open containing the tab 'image'. In this tab, there is a section called 'Keywords', the content of which I would ...
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