Questions tagged [images]

Something related to visual data files

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22 views

Deleting images all completely black images and files with the same name

I'm working on preprocessing images for a semantic segmentation task and have two folders with identically named images (one of the images in colour, and the other that have been colour coded for the ...
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32 views

What does this 'exif:GPSInfo: 8253' mean in ImageMagick identify command?

Totally love the tool and documentation and currently trying to use EXIF data to geotag my own pictures. Just wondering what this exactly means: exif:GPSInfo: 8253 It pops up in the exif section ...
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1answer
21 views

Expanding FEH capabilities to preview RAW files

I would like to preview RAW files in FEH. I now I can do the following nufraw-batch --embedded-image DSC_0151.NEF --output=- | feh - which opens the image in feh, but only works on one image at a ...
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15 views

Store photo thumbnails on same drive

I'm using external drives and network storages for managing photos across multiple machines. Previewing them in the file browser (e.g. Thunar) is crucial for that. Furthermore, many of them are RAW ...
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119 views

Why Can't BPG images be converted to BPG animation?

I can convert JPG and PNG images to BPG (Better Portable Graphics) animation, using the following command: bpgenc -a input_%03d.jpg -o out.bpg According to the BPG documentation it is not possible ...
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19 views

Convert multi pages PDF to multi images with Inkscape command line

I would like to convert a PDF of X pages into X images with Inkscape command line. I know how to do it with convert : convert myfile.pdf -density 300 -alpha off export/myfile-%02d The result will ...
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1answer
223 views

What is the command-line name of Gnome's image viewer application?

By default, images are opened from the Gnome file browser by an application which seems to be called "Image Viewer". I would like to use this application from the command line, but I don't know its ...
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1answer
25 views

Show bootsplash image without rebooting

I have slackware 14.2 installed on a spare computer without any GUI. My child loves to see the penguin bootsplash when the computer restarts and the kernel loads. Is there anyway to show them without ...
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30 views

CLI Tool to extract images from video slideshow

I'm looking for a tool that can take a video (mp4) that is composed of about 50 still images and extract all of the images out of that video. Is there anything like this that exists?
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2answers
3k views

How to open an .png type image in Linux terminal?

I just can't find the command to display a *.png image! I tried xdg-open command but it failed: [student@seqpapl1 Images]$ xdg-open adapter_content.png xdg-open: no method available for opening '...
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84 views

want to Rename Images In Bulk in Linux

I have more than 1 million images with name of love-images-250x120.jpg 7788855441122-love-images-250x120.jpg us-wallpapers33344.jpg 77441144desktop-wallpapers.jpg desktop-wallpapers1144141411.jpg I ...
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186 views

Can wget download reveal.js image assets?

In using the wget command below, $ wget \ --recursive \ --no-clobber \ --page-requisites \ --html-extension \ --convert-links \ --restrict-file-names=windows \ --...
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2answers
712 views

Sending mail with attachment(image) using sendmail in Linux(ksh)

I am trying to send a mail with below command. I am sending this command from sqr to the command line, which is working fine. $FilePath_mail have To,From and other information along with mail body ...
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30 views

Display a bash script and all its functions in a visual way

Is there a tool (general or bash / shell specific) that can display a code into in clean visual representation of the functions. Like a visual algorithm with bubbles with the name of the functions ...
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1answer
63 views

creating image tag for my pictures

I have 3 computers: One runs windows 10, another one runs Debian and the last one act like an NAS. I store my captured pictures to my NAS. What I would like to do more is to add a tag to each photo. I ...
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1answer
216 views

XDoTool Command to Wait For Process to End

I use the program VisiPics to delete dupicate pictures. The processing time for deletion varies dependent on the number of pictures and duplicates. I created an Xdotool command to carry out certain ...
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1answer
782 views

No thumbnails on Linux Mint?

I have a VeraCrypt volume mounted from an external hard drive and the thumbnails for >90% of the files don't seem to load. Only the first few load then the rest show a clock icon. When I open the file,...
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1answer
380 views

How to download all images with the full resolution (i.e. svg) from a single wikipedia article [duplicate]

I was asking myself how to download all (.svg) images from a single wikipedia article without doing it manually for each single image. Wikipedia is offering images in different resolutions and ...
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11 views

tool like pnmcut but optimized for static files on disk?

Here's the scenario. I have a ginormous image (~ 30,000 pixels across, so my ginormous might be small to you). I want to take a lot of small cut outs from it. I have code right now that works with ...
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1answer
99 views

[Error while Running the Gstreamer Example on Development Kit]; “File descriptor in bad state”

I'm running a basic application on Orange-Pi DVK with Gstreamer-1.4.0. While running the application it throws this error: AL lib: (WW) alc_initconfig: Failed to initialize backend "pulse" AL lib: (...
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0answers
157 views

Create small high-quality GIF/APNG from a bunch of PNGs

I have 50 PNGs (like those ones here) and I would like to create a GIF (or APNG) animation from it that approximately retains the quality and is small. What I'm doing so far is to rescale and throw ...
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1answer
511 views

Automatically restoring verticality of the edges of a scanned photo

I want to scan a collection of rectangular photos, both color and black-and-white. I am generally quite happy with the scanning, but I run into some practical problems, due to the fact that photos are ...
2
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1answer
498 views

wget doesn't download images of a website?

I'm trying to download threads of a web forum which contains many images with wget. These images are hosted in a separate domain, so I used the -H flag to allow downloading them. The complete wget ...
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1answer
48 views

POSTing large files into Apache causes swap

The setting that I have is a compute with only 2Gb of free memory. When I upload large images (3.5 Gb) through the Horizon (which uses apache2) the image fills the cache and starts to swap. I ...
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1answer
230 views

Create backup image of running Ubuntu?

On Windows there is software like Acronis True Image that can create full backup images of a currently running system. Is there any alternative on Ubuntu for doing that? Requirements: still ...
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1answer
100 views

How to add image to Linux prompt? [duplicate]

I was just watching a video and came across the below prompt Seems like lightening image is at the first and some big arrow like structure to display the directory path. Do you know how to do this in ...
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1answer
29 views

Clonezilla - physical Server

I have a physical server (HP G9) with three 300GB hard disk drives installed in it. For some reasons, I need to change the physical server's body with HP G7. I want to use Clonezilla to make an image ...
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2answers
540 views

How can I execute scripts based on changes that are happening on a specific folder?

For changing a specific image's size I use the following command: mogrify -geometry x50 my_image.png Every time that I take a new print screen, an image is saved on my ~/Pictures folder. I'd like to ...
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1answer
100 views

how to find a picture in linux by color

Is there a code or program that allows a user to search for images with a specific color in the photo I've recently ran a image recovery tool on my Linux distribution and there's over 40,000 Pictures ...
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1answer
246 views

why does mediainfo not give metadata of an image like exiftool does?

I have been scratching my head on this for quite some time now. Let's see what mediainfo says on an image - $ mediainfo ZQs3vcsHiGY.jpg General Complete name : ZQs3vcsHiGY....
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1answer
105 views

How to merge 2 images under linux console (via sh script)

I have jpeg image on the server from IP camera. This is every 1-second snapshot. Because of privacy, I need to cover the closest balcony. I was prepared a cover png image. Is it possible to make a ...
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2answers
85 views

Lossless crop JPEG to whole 8x8 blocks

Since JPEG images are compressed in chunks of 8x8 pixels, if a JPEG has a width or height that is not divisible by 8, is it technically possible to remove the 1-7 pixels of the outer edge losslessly? ...
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2answers
710 views

How to Find and delete File Older than 3 years without scaning on modified date?

I have 1 folder with image .jpg file, and I'm sure that folder image older than 5 years. Now I must delete image older than 3 year. I know i can find it with this find /path/to/files* -mtime +1095 ...
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1answer
35 views

How to get convert to not interpolate pixels?

I am using ImageMagick's convert to convert a bunch of .fits files (an image format used in astronomy) to an animated .gif. My astronomical images are pretty low resolution (150 x 300 pixels) but ...
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20 views

Supply dimensions to convert -crop from a list of dims

I have several hundred images I want to crop, unfortunately they are all of different sizes. I have a file that contains the correct cropping dimensions for each image called crop_dim. I want to ...
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32 views

Gimp Plugin to batch-export several different color shades

I hope someone can give me some info on whether or not a plugin exists for Gimp which will automatically do the following... I've created an icon which I want to save as several different color ...
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2answers
9k views

How to get the DPI of an image file (PNG)

If I export an image with lets say 300 DPI and I read out its meta-info with any application that can do it (like file, exiftool, identify,mediainfo etc.), I always get a value showing Image-Width and ...
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2answers
10k views

Failed to connect to Mir: Failed to connect to server socket: No such file or directory

I have installed libgtk-3-dev and wrote and compiled this code successfully(without errors I mean): #include <gtk/gtk.h> void destroy(void) { gtk_main_quit(); } int main (int argc, char** ...
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1answer
208 views

How can I download and save all the images shown in a web page?

I want to download the images shown in a web page, for example https://www.wikiart.org/en/paintings-by-style/art-nouveau-modern, (the ones under the All Artworks tab), and store them in a folder (e.g. ...
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3answers
138 views

Paint-like graphical editor for Debian?

I'm looking for simple graphical editor for Debian to make pixel art. It has to have pixel grid, be able to draw simple shapes and right-click ideally should apply secondary color (unlike gimp, which ...
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1answer
213 views

How to force “sips” to adopt white as 0 when creating a 1-bit black and white TIFF image?

sips is a command-line tool to process images on Mac OS X and BSD Unix. sips stands for Scriptable Image Processing System. I have a 1-bit black and white uncompressed TIFF image. The following ...
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1answer
42 views

Replace a certain color of pixels in a png with another png image

I have a png (items.png) which consists of mostly black pixels. I want to replace all the black pixels with another image. (background.png) The images are not the same size, items.png is smaller ...
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1answer
661 views

Batch rotate images by 180 degrees from the command-line [duplicate]

I'd like to rotate a series of images by 180 degrees clockwise from the command-line in a way I can write into a shell script to make things faster and more convenient. Is this possible?
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233 views

Use pdf file as wallpaper

I have a series of high quality images stored as pdf, one image per file. I want to use these images as a a series of rotating wallpapers. However, apparently Ubuntu (16.04) does not handle pdf files ...
2
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1answer
1k views

Imagemagick 'convert' text to image: ReadTEXTImage: Assertion

I'm trying the following command to convert text to an image: $ echo test | convert text:- text_box_trimmed.png convert: ../../coders/txt.c:198: ReadTEXTImage: Assertion `exception->signature == ...
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3answers
483 views

feh warns on text files

How do I get rid of these warnings from feh? I am trying to run a slideshow using images in a directory. Why is feh trying to open text files in that directory? feh WARNING: images/temp.txt - No ...
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204 views

feh: concurrent slideshow and montage modes

I have sets of images that are related and that I would like to view in parallel (e.g., images A1, A2, A3, etc. constitute a sequence and images B1, B2, B3, etc. constitute a related sequence). I ...
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3answers
574 views

How to encode/decode JPG file to int sequence?

I want to convert my JPG files to int sequences and then reconvert to get the images again. My script.sh is like this: FILE=$(cat $2) TOTAL=$(echo ${#FILE} - 1 | bc); for j in $(seq 0 $TOTAL) do ...
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1answer
161 views

Find gif/jpeg files with png extension and convert to png

First command find and list jpeg/gif files with png extension. Second command convert a file to png. find . -type f -name "*.png" | xargs -L 1 -I{} file -i {} | grep -v 'image/png; charset=binary$' ...
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0answers
400 views

Copy-pasting image files into LibreOffice Writer doesn’t work from the Xfce desktop

I want to copy-paste image files into LibreOffice Writer. It works fine when copying the files within Thunar: the image appears in the document. It doesn’t work when copying the files from the Xfce ...