Questions tagged [images]

Something related to visual data files

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22 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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17 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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18 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 ...
1
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1answer
29 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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52 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
63 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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7 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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29 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
75 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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0answers
12 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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0answers
10 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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25 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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0answers
34 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
35 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
41 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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0answers
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 ...
0
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1answer
49 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 ...
0
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1answer
36 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
31 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
35 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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2answers
156 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
357 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?
1
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1answer
28 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 ...
1
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1answer
46 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
168 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 ...
0
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2answers
25 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
157 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: "...
3
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1answer
93 views

Detecting “bad” images from the command line

I've restored a huge number of images from accidental formatting of a disk. A great number of these images are corrupted, ie. 100% green or 70% grey. Unfortunately, they all still have EXIF data so ...
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3answers
59 views

How can I reliably determine if a file is an image file? [duplicate]

Currently I'm using the following command: file image.jpg | cut -d " " -f 2 So far so good. It works on a file without an image extension too. So, I was wondering if there's another way to do this? ...
1
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1answer
75 views

Shell: Output text to PNG while preserving color

I like to be able to save the output of a shell command as a PNG image without losing the formatting. Kind of like taking a screenshot of the output. some-command-with-color | text-to-png a.png I ...
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0answers
186 views

Using MFGtool(UUU) on IMX6DL in Linux

I am pretty new to this area so please bear with me. I have an IMX6DL board and I want to flash a Linux image through USB. Originally, I flash my image using a windows version of mfgtool. This takes ...
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0answers
51 views

Find and delete photos that are smaller than a certain dimension

I would like to loop through some directories with pictures and copy (and after reviewing remove) them to another directory based on image dimensions, let's say smaller than 800x600. I've tried a ...
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0answers
58 views

How to print images two-sided using `lpr`?

I have several photos, which I wish to print on a single piece of paper. I have already tried: Using convert to combine all images per side. However, now I need to print them two-sided. Using ...
0
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1answer
236 views

Why are my PNGs executable?

I noticed that most of my image files are green when the ls command is used but some of them look purple. Apparently .png and .jpg files are supposed to look Magenta while executable files are Green. ...
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1answer
168 views

Ubuntu Core as Hyper-V virtual machine image

As Ubuntu Core can be installed on an Intel® NUC, is there any possbility to make it run as Hyper-V virtual machine to play around with it?
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0answers
100 views

bash: opening multiple files in for loop

I want to open all the images in a small directory containing a small number of arbitrary, each image in its own window that has rotate and zoom controls. I have tried eog,eom,imagemagick,gimp,...
0
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1answer
22 views

Smoother access to files on FTP Server

I use Nautilus on Ubuntu 18.04.3 to access ftp server. But if I select any files, it opens in the browser first, then gets downloaded in the download folder and then I have to open that downloaded ...
1
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1answer
37 views

Intuitive image sorting

I have photo collections (consisting of several photo sets each) where all the file names have been randomised and where files have been modified in random order so that sorting them by file name or ...
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0answers
11 views

find images with specific dimesions and copy them all into another directory

I already did various searches on google, I find this link with a similar question but I fail to integrate this: find . -iname "*.jpg" -type f -exec identify -format '%w %h %i' '{}' \; | awk '$1<...
2
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1answer
56 views

Showing Image Metadata with Less Pipe?

I'm watching a video about less pipe and the maker is able to open image files and get back a bunch of meta-data: My system seems to have less pipe and I can view PDFs and compressed files with less, ...
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0answers
19 views

imagemagic: split images vertically based on a aspect ratio

I am trying to split the image based on the aspect ratio of 903:600 I have am image of size: 909 (W) x 5481 (H). I want to split the image vertically based on aspect ration of 903:600 I am trying: $...
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0answers
43 views

How to remove a water mark at the bottom right of a png with Imagick

Ubuntu 16.04 PHP 7.2 We use Imagick to place a transparent png image of a vehicle over a jpg background. The watermark from the company we purchase the images from appears at the bottom right of ...
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1answer
80 views

Linux restore deleted images (png/gif/jpg/jpeg)

I inadvertently deleted images from my linux filesystem today with classic command rm -f. All deleted images was in one single folder. It was no all whole images in this folder, it was only very ...
2
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1answer
94 views

Consolidate several GraphicsMagick (ImageMagick) commands into one

There are many times I get single page PDFs that I want to convert to JPEGs and crop the excess whitespace off of. Here is the current set of commands I have which accomplishes what I want: gm ...
0
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1answer
137 views

How can I modify the contents of an image with a bash script?

Say I want to overwrite the top half of a file "image.png" with white pixels. Can I do that with a bash script?
0
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1answer
49 views

What is an extremely lightweight way to detect change in an image?

I'm trying to find the most lightweight method to detect "adequate" change in an image. I realize that's a terrible constraint, so for the sake of this question I'll break it into two different ...
0
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1answer
24 views

Green tint to wallpaper - Linux Mint

I'm trying to set a new wallpaper image in Linux Mint 19 and the image is given a strong green hue rather than appearing as it actually is. See attached image, very self-explanatory. I'm looking for ...
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0answers
52 views

Connect image files in two folders with python regular expression

I have two folders with the names images and labels like th following The following code creates a function that links files in images folder with their corresponding files in labels by using _P ...
2
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2answers
719 views

Is there a Linux image viewer that can browse images by a specific order?

I've accumulated hundreds of pictures and I'd like to sort them. For that purpose, more often than not, I check a list of them in Thunar, sorted by size, and then watch them with an image viewer. The ...
1
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2answers
57 views

Creating a hardware independant image possible?

I swapped from Windows Community to Linux Community and am struggling a bit with images. You can on Windows install a system, then strip it from all saved hardware details and create an image. This ...

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