Unix and Linux Stack Exchange
Unix and Linux Stack Exchange

Questions tagged [images]

Something related to visual data files

An image in this site's context is something related to a visual data file (as opposed to "a representation of what is in the memory of a running program/kernel")

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What is the fastest way to view images from the terminal?

The terminal is very fast and convenient way to quickly access directories and files (faster than find and click on the directory). One thing that it cannot show in text-mode is "pictures". What is a best way to view pictures (like you see images…
fronthem
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convert webp to jpg error: "no decode delegate for this image format" and "missing an image filename"

I'm using ubuntu 12.04. I've installed libwebp2 & libwebp-dev So far, no example found on the net of converting webp to jpg. Some webp files can easily converted by using imagemagick with command convert file.webp file.jpg but lots of webp files…
apasajja
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shell command to get pixel size of an image

Is there a shell command that returns the pixel size of an image? I'm trying to produce an animated gif starting from different gifs with different sizes using convert (e.g. convert -delay 50 1.gif 2.gif -loop 0 animated.gif). The problem is that…
blue
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Copy image from clipboard to file

Is it possible to take an image from the clipboard and output it to a file (using X)? I can do this with text easily: $ xclip -selection c -o > file.text But when I try the above with an image nothing is written. The reason I want to do this is I…
Lerp
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How to Extract Album Cover Image from MP3 file?

I have a bunch of MP3 files that have their album art included within the file itself. I am now looking for a way to extract them to store them separably, at best from command line. Is there a way to achieve this?
k0pernikus
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Change file created date from JPEG EXIF metadata

When uploading to an ftp site, the original file create date seems to be lost, and I get the upload date instead. However, the Exif data in the file is correct. Is there a tool to batch change the created date from the Exif date?
Finn Ove
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4 answers

How to split an image vertically using the command line?

Say I have a large 800x5000 image; how would I split that into 5 separate images with dimensions 800x1000 using the command line?
shley
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How to extract files from uImage?

Buildroot is generating images for an embedded device where they should run. This is working very well. In those images, the rootfs is included. Due to some research, I'd like to look into that generated file (e.g. different compression modes set by…
user3085931
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Copy image from command-line to clipboard

Is there a way in a bash to copy a picture to the clipboard? For example if there is a picture mypic.png I want to have a command like clipcopy mypic.png such that I can go for example to inkscape and paste it afterwards.
student
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Open source duplicate image finder for Linux?

Is there a free and open source duplicate image finder for Linux based systems? Finding exact duplicates (based on content, not file name) is sufficient for me, but the ability to find similar images would certainly be great, too.
hpy
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How to extract images from video file?

I mean, how to generate images files from a video like screenshots.
remas sido
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Image viewer with auto-reload on file change?

Are there any image viewers which will auto reload the view when the image file is written to? I normally use debian variations of linux however appreciate all answers related to any "Unix & Linux" environments.
AnnanFay
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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 Image-Height. In this case: 2254 x 288 how do I…
nath
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How to batch resize all images in a folder (including subfolders)?

I have huge, 12GB, gallery on the server, full of images in various subfolders. Those files are too big and not used in full resolution. I need to resize all the images down to 820px wide (keeping proportions). So my question is - how can I create…
G-Gore
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How do you binarize a colored image?

My friend has an colored image with Chinese handwriting (basically by taking photo of or scanning what he wrote on a piece of white paper), and he would like me to convert it into a black and white binary image. Are there applications under Ubuntu…
Tim
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