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Questions tagged [images]

Questions about opening / editing / saving images using image-editing applications.

6
votes
2answers
158 views

How to view EXTREMELY large images?

I have a 1.8GB TIF image that I'm trying to open on my machine with Ubuntu 18.04.1 LTS. I have 8GB of RAM and 2GB of swap space. However, I can't open the image on the stock Gnome Image Viewer (says "...
0
votes
0answers
19 views

How to take image of a entire Ubuntu System for backup purpose [duplicate]

How to take a image of entire Ubuntu system
1
vote
1answer
35 views

Why won't scikit-image work for Python3?

So I'm trying to use scikit-image for several functions on images. One such function is converting an image from rgb to hsv where I took my image (img) and said from skimage.color import rgb2hsv ...
1
vote
1answer
612 views

Manipulating Image Contrast In Terminal

I've scanned 200+ pages. I am wondering if it is possible to touch these up by running a batch command line image software with a contrast manipulation option. Essentially I am wanting to give a ...
0
votes
0answers
39 views

Filemanager can handle archives (ZIP/RAR) as if they were folders. Like DirectoryOpus

I'm looking for a program that can show me the contents of archives containing images. I used the file manager DirectoryOpus on Windows earlier. DirectoryOpus can display images, navigate to the next ...
0
votes
1answer
77 views

Is there any drawback to using jpg instead of png for screenshots?

OS: Kubuntu 18.04 with gnome-screenshot installed. I ran these commands consecutively on the same desktop screen: gnome-screenshot -p -d 10 -f /home/dkb/"GS$(date +%Y%m%d%H%M%S)".png and gnome-...
1
vote
1answer
36 views

Is there an applet like Haste but for images?

For quick simple image hosting to post on forums and such?
1
vote
1answer
34 views

how do I prevent imagemagick's convert comand, from scaling an image?

Im trying to make sprite sheets out of animated gifs. The sprites are for my GPS, and each frame needs to be exactly 80x80 pixels. I used this command: convert -resize 80x80 input.gif g.png which ...
2
votes
1answer
81 views

is there a way to stack images side by side with imagemagick?

Im writing a little program, in C/C++, to convert gifs to a single image, where the frames are consecutive in a single image. Unfortunately, I am running out of free time, and I want to use the ...
19
votes
5answers
4k views

Is there a command to get the number of frames in a gif?

Is there a command to get the number of frames in a gif? I have some gifs, and I want to convert them into arrays, but I want to limit the array, and structure of the array based on the number of ...
2
votes
2answers
987 views

Right-click convert PDF to JPG?

Looking for an easy way for one of my employees to convert PDF files to a JPG. I can do something in CLI, but he can't. It has to either be automated (less desirable), or a right click convert thing. ...
1
vote
0answers
107 views

Can you view a gif icon as an stillshot image? [duplicate]

I have a few GIF images, but they are just a grey icon that says GIF. Can't tell them apart otherwise aside from the name. In other words: my picture folder has images, you know which one you are ...
3
votes
1answer
719 views

How can I generate thumbnails in advance on KDE / Dolphin?

Revisiting this Q&A about pre-generating thumbnails on Nautilus/GNOME I recently had to discover that none of the scripts posted there would work on KDE Plasma 5 / in the Dolphin file manager. Is ...
2
votes
1answer
130 views

Safety of removing older images of Ubuntu 14.04

I try to remove older versions (or maybe rather images) of Ubuntu 14.04. I swiftly went through: How do I remove old kernel versions to clean up the boot menu? I have uname -r 4.4.0-119-generic ...
0
votes
1answer
456 views

How can you use Imagemagick crop to get first 100px from an image?

It's been awhile since I've played with Imagemagick. I do remember crop and I can take an image named foo.png and use: convert foo.png -gravity north -crop 1000x100 bar.png but my output is: bar-0....
0
votes
1answer
1k views

What is Disk Image Mounter?

I am using Lubuntu 16.04 LTS 32-bit. On my hard disk when I select any ISO file and right-click on it, the menu list has 'Disk Image Mounter'. Please tell me full details about it, what is it and how ...
0
votes
0answers
15 views

Doc Created in word does not display graphics when opened in Libre writer

I have a docx file created using MS Word, which has some graphics. When I try to open this file in LibreOffice Writer the graphics are not displayed. I have Display Graphics & Objects already ...
1
vote
1answer
454 views

Side by side image comparison in Linux

Is there any way to view and compare images side by side with the ability to zoom and pan on one image and get the same view on another image (synced views)? In Windows this can be done using ...
0
votes
1answer
2k views

Ffmpeg can't find codec parameters while converting images to video

I tried to use ffmpeg both from repos and from github. I tried this (also tried with -c:v some_codec ): ffmpeg -f image2 -framerate 24 -pattern_type glob -i 'frame-*.jpg' -s WxH 'foo.avi' ffmpeg ...
0
votes
1answer
464 views

how to make video out of image sequence, skipping every n files

I know how to make a video out of an image sequence using ffmpeg -i %0Xd.png or *.png etc. But what I'd like to do is somehow tell ffmpeg to skip every n files. E.g. if I have files numbered 0000, ...
0
votes
2answers
123 views

How to boot from vmlinuz.old

Not sure if this is the right question but, I recently reinstalled Ubuntu and had some files that I didn't back up. Is it possible to boot from the vmlinuz.old to recover these files and if so, how ...
2
votes
1answer
1k views

How to convert all the images in a directory to jpg?

I have so many different images in a directory with sequential names 1 2 3 4 ... I was wondering if it was possible to convert all of them to jpg and resize them all to 900x900 without preserving ...
1
vote
1answer
157 views

how can I edit srf image files?

I have a Garmin Nuvi GPS, which contains images, in dot SRF format. I would like to edit the images, or create new srf image files. I have tried to use GIMP to edit or export images to and from this ...
8
votes
2answers
2k views

How can I extract an image from a particular time of a video in Xubuntu 16.04?

I am looking for some command line option. For example, if I have the video sample-video.mp4, and I want to generate an image file sample-image.jpg from the video at time 00:00:26, what command ...
2
votes
2answers
55 views

How to ensure that a disk image shared by someone is safe to use?

I have downloaded and am using an ubuntu image that someone has shared on github (well, the torrent which I downloaded). I am sure that this person's intentions are good and it seems like a very ...
2
votes
2answers
91 views

find the lowest height and lowest width among all images in a directory

How can I get the lowest height out of all heights and also the lowest width out of all width given I have about 50k images? [jalal@goku images]$ identify -format '%w %h' 72028059_11.jpg 600 431 ...
1
vote
1answer
44 views

Why doesn't the slideshow start from the script that I made for an hourly cron job?

I created some bash scripts within the cron.hourly folder to run some tasks hourly when a machine is on. The cron_pull and cron_update_images scripts work just fine within the cron job. 53 * * * 2 /...
1
vote
2answers
3k views

convert a sequence of ppm images to avi video

I want to convert a sequence of ppm images to avi video (or another possible video format acceptable by OpenCV) First I converted the ppm images with no drop in quality to jpg: $ for f in *ppm ; do ...
-1
votes
1answer
430 views

How can I show images and videos on Ubuntu-server? [closed]

I am using an ARM-based raspberrypi like board, and Ubuntu-server on it. I like to write a C++ program that I can show some images and videos in my program. I mean I can include some libraries above ...
5
votes
1answer
355 views

Is there a way to add an image as a sticky note to my Unity Desktop?

Please suggest me a way to use any image like a re-sizable sticky note so that I can view it whenever I open my Unity Desktop. I want it to be used like a homescreen photo widget app available on ...
4
votes
3answers
420 views

Image viewer for renaming while watching the image

I have a set of images with the date printed on them and I was wondering if anyone knows about an image viewer with the possibility of renaming while looking at the image, to make it faster and not ...
1
vote
1answer
220 views

How to force Linux server to show some images or movies?

I like to know If i have a server Linux and like when the system turns onn, it shows my company logo, and then it shows some pics or videos depending on what it sense, how can I do it? If I want to ...
3
votes
1answer
2k views

Ubuntu 16.04 LTS does not display .jpg files

I have a series of .jpg files that do not show on Ubuntu Image Viewer or as thumbnails. These are perfectly ok on Windows 32 and 64 and on Mac OS. Strangely one very old .jpg file does display ...
0
votes
1answer
2k views

How to compress image PNG And JPG in ubuntu 16.04 [duplicate]

How can I compress PNG and JPG images by > 50%?
0
votes
0answers
27 views

Deploying my current installation of Ubuntu to all the computers in my lab

I've been looking through countless answers, but haven't been able to find a solution which exactly outlines what I'm trying to do. It seems like Clonezilla is the closest, or dd. Here's what I'm ...
12
votes
5answers
5k views

How do I find out if a PNG is PNG-8 or PNG-24?

I have a PNG file but i can't tell if it's PNG-8 or PNG-24?
2
votes
0answers
71 views

Masking a batch of images using Ubuntu [closed]

So I have roughly 400 images of two hands doing gestures. The hands never get connected. I do need to remove the left hand from the image without changing the resolution or size of image and basically ...
1
vote
0answers
34 views

Error while installing anything - /boot/ [duplicate]

I'm new in ubuntu server or any server (in fact) probably I've done something wrong. I'm trying to install docker and when I run: sudo apt-get install \ linux-image-extra-$(uname -r) \ linux-image-...
1
vote
1answer
154 views

imageJ change memory used

I'm trying to open (import) one raw image (.b) of 750MB, but in Edit->Options->Memory&threads the limit is 444MB, and it does not allow to change it. So I have tried to change this line : mem=${...
3
votes
3answers
3k views

What is the output of `cat image.png`?

What does the output mean when you do cat image.png? Is this what the image actually is made of? Does it matter what file extension the image has?
1
vote
1answer
609 views

Print svg file from command line using image viewer (eog) or lpr

Is it possible to print an svg file via image viewer (i.e. eye of gnome) from the command line, or by using lpr? The underlying problem is that I have a directory with many svg files in it and want ...
2
votes
2answers
252 views

Looking for a bitmap editor for screenshots

I've started using scrot for screenshots; this works beautifully, but occasionally I need to edit screenshots to blur personal information add text add arrows add a box around something I'm looking ...
1
vote
1answer
616 views

Imagemagick hanging and not working

I have a folder full with name*.jpg files. I found that Imagemagick convert is the right 'tool' to resize my images. The command I'm using is convert name*.jpg -resize 2000x1500 name*.jpg Problem ...
1
vote
1answer
851 views

Bulk image format conversion from from .bmp to .jpg via command line? [duplicate]

My screen capture program saved .bmp images, which are not usable in Google Docs, which will accept .jpg Is there a clever way to create a set of .jpg from the .bmp files via the command line? Bonus ...
0
votes
1answer
46 views

Can I automatically remove transparency from layers from jpegs without losing quality?

As well as being a developer, I am an artist. I make most of my artwork with GIMP and I save my artwork into a folder in jpg format. I now make sure that a transparent layer was not accidentally added ...
4
votes
2answers
703 views

Can I resize multiple images in a directory to 160x160 at once? [duplicate]

I want to resize multiple images that are stored in multiple sub folders in a directory. And I want to replace those images with resized ones by deleting the original ones Why? I’ve folder icons for ...
3
votes
1answer
2k views

Best app for viewing .exr files

After a google search tried installing gwenview but doesn't seem to work for me. Can anyone recommend their favorite application for viewing .exr, .png files and sequences?
10
votes
3answers
6k views

How can I export a PDF from GIMP with each layer on a new page

I have multiple layers open in GIMP, I would like to export a pdf that has each layer on a new page.
0
votes
0answers
13 views

Re-Image upon reboot [duplicate]

How can I create an image of Ubuntu, and then upon rebooting the device, load that image (re-image) every time? Any session documents, settings that have been changed or visited web sites, would not ...
1
vote
1answer
299 views

What programs support PAM image format?

I am interested to know what programs (particularly image viewers, editors and converters) support the PAM imageformat. So far I've tested 16 viewers (Eye of Gnome (eog), Eye of MATE (eom), Eyesight, ...