Questions tagged [images]

Something related to visual data files

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28 views

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 ...
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13 views

Command-line tool to overlay XML image labels with original JPG image

I label images for a machine learning algorithm using an open-source tool called labelImg. By default it stores the label annotations (green boxes around objects) in an XML format in a separate file (*...
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16 views

Create png image using data in terminal

I use the below code to create a random PNG mx=500;my=500;head -c "$((3*mx*my))" /dev/urandom | convert -depth 8 -size "${mx}x${my}" RGB:- randoms.png How would I populate the ...
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32 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 ![My PDF file inserted](my-pdf.pdf) Then you convert that markdown file with pandoc: ...
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4answers
35 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 ...
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Accidently imaged only part of LUKS drive while unencrypted

I accidentally imaged the drive while it was unlocked and I only imaged the luks partition (Ie. only the luks part of the drive and not the unlocked part of the drive), now when restored I cannot ...
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1answer
44 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 ...
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2answers
56 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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31 views

Convert jpg to bmp in an ARM Cortex M4 MCU

I'm currently working in a project that involves the use of an ARM cortex M4 MCU, specifically STM32F429, which has an embedded LCD controller which uses the bmp image format to show the images in the ...
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1answer
338 views

Alacritty Ranger w3m: Images are not showing or disappear after few seconds

I am using Alacritty and ranger. I have also installed w3m. This is part of my ~/.config/ranger/rc.conf: set preview_images true set preview_images_method w3m set w3m_offset 0 Most of the time images ...
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4answers
89 views

Download image in high resolution

I wanted to download this map: https://www.wdl.org/en/item/17278/ With the webpage download option I get the image in low resolution, however with the zoom option I can see the map with a fairly good ...
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2k views

How to blur webcam background in Microsoft Teams

I am currently using Teams for a master and I would like to blur my backgrounds, do you know any way to do it?
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2answers
71 views

How can I paste an image from clipboard directly to a file? [duplicate]

I need exactly this one but on Linux: Anyone know of a way to simply paste a screenshot (taken with PrtScn or Alt+PrtScn) into a Windows Explorer folder and have it be saved as an image (possibly ...
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19 views

How to prohibit thumbnails from digiKam to automatically get removed in git-annex-repositories?

git-annex is a great way to keep big stuff under (distributed) version control. I'd also like to do that with my images. Currently I'm using digiKam as my photo management tool. By itself this works ...
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38 views

Arch Linux Gnome Font Rendering Problems

Hello Everyone and thanks for looking. As I was customizing arch linux with Gnome DE installed, I noticed that the text are not very sharp. And so I went ahead and turned on anti aliasing through ...
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123 views

How to improve font rendering in Gnome installed under Arch Linux?

Hello Guys and thanks for taking a look at this! So I have noticed that the font rendering in the Gnome DE under Arch linux doesn't yield a sharp image even when anti-aliasing is set to sub pixel in ...
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1answer
27 views

bulk resize height*width problem

I'm trying to resize all images in a directory using this bash script : for i in *.jpg; do printf "Resize $i\n" convert "$i" -resize 336x336 "$i" done But when ...
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44 views

Viewing images date-wise in an image viewer

I am on Debian testing. I have come across this problem before and haven't found any resolution so far using search-engines, perhaps not precise enough, dunno. The thing is I have a folder/directory ...
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26 views

Photo print - default settings

Everytime when I print a photo on linux (using eog), I had to modify on "Page Setup" tab, the paper size. By default it is set to "US Letter", but I need it to be A4. My question ...
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40 views

How to list all image files with a certain rating (recorded in XMP data)

I have a directory with a large list of image files (JPG). Some of them have a specific rating, which is recorded as XMP data. An example would be XMP Exif > xmp:Rating = 5 (for a file that has 5 ...
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1answer
39 views

Can't rm formats after conversion

How can I fix the following command, so that all files with the format specified with the rm command are deleted? #!/bin/bash mogrify -verbose -format webp -quality 70 *.jpg *.jpeg *.JPEG *.JPG *.png *...
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1answer
31 views

Discard black/dark timelapse photos using a script

I'm capturing an rtsp stream using ffmpeg every minute (underwater) and only want to discard any photos that are captured which is less than 10% light. This is my very simple cron script, which I'd ...
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1answer
178 views

How to unzip the U-boot image?

I have the U-boot image called: rootfs.13cy.initramfs.bzip2.uboot I want to see what's inside of it. Whats dumpimage cmd shows me: dumpimage -l rootfs.13cy.initramfs.bzip2.uboot Image Name: ...
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1answer
39 views

Specify rootfs mount options

I would like to specify mount options for my rootfs as per instructed here however I am unsure where this should be done. I've looked through the genimage docs and there was no generic option to pass ...
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19 views

Image conversion using IMAGEMAGIC

I am using convert utility of Image-magic on my MacOS to convert PS graphs to PNG images adding some information to the resulted image convert -undercolor white -background white -alpha deactivate -...
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27 views

Terminal Image editor utility for MAC OS

I am dealing with the analysis of many PostScript graphs on my macOS system. Could you suggest me some utility that could be executed in terminal with the aim to add some information to the graph in ...
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1answer
67 views

Superimpose multiple images

I have multiple pictures that are look alike, they're all black and differ only in the one dot of the screen, I want to combine them in one picture so I can see all the dots in one picture. How can I ...
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320 views

What do the avifenc min/max quality settings do?

I'm using avifenc by joedrago to create AVIF images (for use on the web). I installed it via Homebrew on macOS using: brew install joedrago/repo/avifenc There doesn't seem to be a single quality ...
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1answer
401 views

ImageMagick - how to preserve exact palette in .PNG

I'm trying to use convert(1) from ImageMagick to convert from .tga to .png (and back again later), while preserving exact palette that was used. Source image is TARGA color indexed file, having a ...
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38 views

How to capture one image (screenshot) from asciinema?

How can I extract one asciinema image from a video, i.e. make a "screenshot"? As an output file I want a file with all ansi codes etc. My aim then is to convert it to HTML to then convert ...
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79 views

Thunderbird/X11 - pasting images from clipboard/primary selection fails unless I first paste to libreoffice

If I do a screenshot to clipboard like this: xsnap -png -stdout | xclip -selection primary -t image/png .....then a middle-mouse-button-paste to thunderbird yields a binary paste starting with '�PNG ...
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2answers
111 views

Is there a PNG file that exists in almost all Linux distributions?

I need a default image for the demo, but I don't want to attach an extra image to the installation package. So I want a PNG file that is normally found in almost all Linux distributions, except for ...
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16 views

Add tag to each image in a folder recursively

Is it possible to add a tag (that is the name of the folder) to each image in a folder recursively? For example for following folder structure Europe |-Germany |-Austria I want to add tags Europe and ...
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18 views

Using montage to combine two pictures into single

I have two images IMG01.png and IMG02.png. I want to make a collage of these two images and get a single image Out.png. I don't want the quality of the images to be diminished. How can I achieve this ...
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47 views

Best way to crop a RAW image file to TIFF preserving quality

I am a nature photographer, and it is usual that I take a picture with the subject in a small portion of the picture. Now I am doing astrophotography and face the same situation, with a small Saturn ...
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113 views

Feh vertical flip all images in slideshow

I have a large dataset of images in a directory that I would like to view. feh -f works perfectly to quickly step through the images. The problem is that all the images are flipped upside down. While ...
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2answers
53 views

Delete RAW image files that have no JPG counterpart

I want to delete every RAW image file (Photo image) that has no JPG counterpart. Here's my current workflow: My camera creates a RAW and a JPG for every photo I take. I review the JPG files, and ...
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2answers
207 views

How to remove some pixels with respect to bottom in multiple images. [crop]

I have many images and each image has little watermark at the bottom, I want to remove that by cropping the images in bulk. Here is an image that shows what I want to do. How to do that in bulk using ...
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31 views

how could I sort hundreds of images by their content

I m looking for a solution to sort hundreds of images by their content; of course, I will script around the solution to automate that work. I know I can use metadata to separate draws and photos. But ...
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1answer
53 views

sort imput files in pdfbeads

I'm trying to make a pdf from hundreds of .tif images with pdfbeads. I can't make the program use the images in the correct numerical order. For example, during the process I see: Prepared data for ...
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1answer
102 views

Problem extracting images with pdfimages

I would like to extract the images from the following pdf: https://doku.pub/documents/benveniste-e-vocabulario-de-las-intituciones-as-3nl271x3v808 I run pdfimages -j file.pdf image but I get strange ...
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1answer
42 views

Extracting All Picture Files From a Bunch of Folders [duplicate]

So basically I have an external hard drive with a bunch of old pictures on it my goal is to get them all to google photos. Problem is since these photos where managed with the mac photo software there ...
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2answers
222 views

Unable to extract images from a pdf with pdfimages

I'm traying to extract images from a PDF with pdfimages. The last time I used it I had no problems, but now I can't do the job. When I run pdfimages archive.pdf . and I try ls in the folder where ...
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3answers
690 views

How to view a big svg file?

I have a big SVG file (~200MB): it's a graph with very precise data. However when gzipped into graph.svgz its size is around 3 MB, so you see it's very repetitive data. When I attempt to open it, ...
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3answers
445 views

What is a bd build of Debian?

When I look at the alpha releases of Bullseye (non-free) I see a lot of BD images. What are these?
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1answer
52 views

Imagemagick Text Placement on Images with Varying Dimensions

I want to be able to overlay text in the margin of images with varying dimensions. Images of varying dimensions will have a black margin that is 30% the width of the image. I have the following bash ...
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1answer
58 views

Why this black box and how to remove it

Generated images from a file cat file.txt | while read line; do for word in $line; do convert -background none -pointsize 72 \ -fill orange label:"\ $word" \ ...
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1answer
634 views

Extract file from ext4 image and copy file to device

Here I read: $ cd /media/mmcblk1p2 $ tar xf /media/sda1/mfg_images/st-image-bootfs-openstlinux-weston-stm32mp1-som.tar.xz but as source file I don't have a compressed file, instead I have an ext4 ...
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2answers
46 views

How to resize images on sequential functions?

I am trying to: change the format of my images, then resize their height and width of 40% then optimize their quality to 35% max of the source and the total size of the image to 35% of the origin. ...
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2answers
217 views

Image steganography!

I was solving a steganography challenge - When I typed file image.jpg into the terminal, the result was JPEG image data, JFIF standard 1.00, aspect ratio, density 1x1, segment length 16, comment: "...

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