Something related to visual data files

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1
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1answer
14 views

Preparing a Ubuntu install for sharing

I have a virtual version of Ubuntu running in VirtualBox. Currently I have lots of personal information in it. I want to share the virtual image disk with other developers, but I don't want them to be ...
16
votes
5answers
8k views

Command line convert webp to jpg?

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 ...
2
votes
0answers
17 views

pdfimages wont extract all images

I'm using pdfimages to extract images from a PDF File. I've counted at last 10 images. But the program will only extract 4. pdfimages -all file.pdf i Generates -rw-rw-r-- 1 victor victor ...
6
votes
6answers
3k views

Find images by size: find / file / awk

I've been trying to find png image files a certain height (over 500px). I know that file will return image dimensions. Example: $ file TestImg1a.png TestImg1a.png: PNG image data, 764 x 200, 4-...
0
votes
1answer
47 views

“Print” text file to images with layout from command line

I have long journal files that I would like to view as images. I don't want to have to screencap my text editor. I am using LibreOffice to Export them to jpg, but I have to do everything ONE. STEP. AT....
4
votes
3answers
76 views

Shell script to separate and move landscape and portrait images

I have a directory of jpg images. Is there a shell script (bash or zsh would be acceptable) that would move all landscape images into a directory, and all portrait images into another directory?
2
votes
2answers
824 views

How to add a software to the list under “open with” other applications in Linux Mint 16?

I want to add a software to the "open with" other applications list that drops down after clicking on a photo to open. I installed Photoscape on my Linux Mint 16 system but it does not show in the ...
3
votes
2answers
129 views

How can I know the total size taken by specific kind of files in my hard drive?

Like the title says I would like to know if there's a command that can tell me how much storage are the .jpg files (for example). Something like if I do find / -iname "*.jpg" which can add the size of ...
61
votes
13answers
148k views

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 ...
6
votes
2answers
832 views

How to preview image in tmux in iTerm2

iTerm2 is able to display images within the terminal. I'm using the imgcat script and it works fine, but when I'm inside of tmux it does nothing. Is there a way to be able to preview images inline in ...
0
votes
0answers
36 views

How to Convert Lossless Rasterized Image (.pdf) to .png by Adjusting -density/…?

Condition: find the minimum number of points for the lossless conversion of a rasterised image (.pdf) to another rasterized image (.png) Example data: https://www.cdc.gov/healthyyouth/evaluation/pdf/...
3
votes
2answers
3k views

How to extract images from video file?

I mean, how to generate images files from a video like screenshots.
12
votes
2answers
12k views

How to extract files from uImage?

Buildroot is generating Images for an embedded device where they should run on. This is working very well. In those Images the rootfs is included. Due to some research I'd like to look into that ...
11
votes
5answers
5k views

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 ...
5
votes
1answer
91 views

Random image generator

I am generating random data and trying to convert it to a PNG image using : head -c 1MB < /dev/urandom | hexdump -e '16/1 "_x%02X"' | sed 's/_/\\/g; s/\\x //g; s/.*/ "&"/' | tr -d "\"" | ...
3
votes
0answers
60 views

Unix way to extract vectorised image and its graph from a PDF file?

Data: one LHC thesis' page 16, where the picture is vectorised (most probably .eps). I am reviewing the answer here of the thread Software needed to scrape data from graph. I cannot find any tool ...
3
votes
3answers
2k views

How to install BPG (Better Portable Graphics) on Linux Mint 17?

How do I install BPG (Better Portable Graphics) on Linux Mint 17? I downloaded the tar.gz file from Fabrice Bellard's website. The ReadMe file says, Edit the Makefile to change the compile ...
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votes
1answer
15 views

Detect WebP files

I am using Ubuntu and type doesn't seem to work for webp images: bash: type: test.webp: not found How can I discriminate webp images from the command line?
0
votes
0answers
28 views

Systematically change all visible color in multiple pngs via a script?

I have a large set of pngs to be used as icons for an application I am developing. The icons are all a single color and have a transparent background. Is there a systematic way to change the single ...
9
votes
2answers
4k views

How to store an image file in bash variable?

After I use the following command, pngString="$(cat example.png)" echo -n "$pngString" > tmp.png I can't open the tmp.png as a PNG file. Maybe some information is lost when I use $pngString ...
2
votes
1answer
30 views

Silhouette from an image

How can I create silhouette from an image in linux using the terminal? By creating silhouette I mean - how do I turn the RGB components values of an RGBA image to #000000, while preserving the alpha ...
1
vote
0answers
10 views

Exporting from digiKam album view to local filesystem?

In the album view I am able to select multiple photos and have the option to export to many many different types of destinations under the 'Export' menu (Dropbox, Flickr, Google Drive, Imgur, etc.), ...
0
votes
1answer
94 views

How to display images in OSX terminal

How do I display images in the terminal? I am on Mac OSX mountain lion (10.8.5), and the answers in this question don't work on OSX. Is it possible at all?
0
votes
2answers
157 views

Display images in console (curses)?

What approach can be used to display an image in a console (no X windows)? For example, I can use curses/ncurses to divide a console into different panes, but in some situations I would like to ...
2
votes
3answers
43 views

Is there a way to see the dimensions of a jpeg file in linux using the command line?

I have some .jpeg images saved in a file in a cluster at school. I am at home using PuTTY to access one of the Debian nodes. I'm able to get to the folder with all the images but I need to see the ...
1
vote
1answer
1k views

No make target “uImage” with Buildroot 2013.05

After enabling Linux Kernel option and setting the Kernel binary format to uImage, I always get the following error: make[1]: *** No rule to make target `uImage'. Stop. My buildroot configuration ...
0
votes
1answer
33 views

Create a pdf from which images cannot be extracted [closed]

I would like to make a PDF (of a Libre-Office document) that has the following properties: The images it contains cannot be extracted and saved; It contains hyperlinks that should be keep on working....
1
vote
1answer
37 views

To plot 7x10 pictures for review in video

Assume you have 77777 pictures. You want to review them and their differences: have 7x10 pictures without margins to have an image viewer where the minimum browse time can be less than 1.0 s such ...
4
votes
4answers
60 views

Programatically determine “uniformity” of image

I'm attempting to write a script which thumbnails our many thousands of assets. The assets use Flash for the most part, and I'm capturing them via chromium-browser on the command line. I pretty much ...
1
vote
1answer
2k views

How to display a .jpg file using fbi in a bash script for set amount of time and then execute the next command in the script

I am trying to use fbi in a bash script to display a series of .jpg images. But once fbi begins its process, it continues to cycle through the images and I only want to display each image once for a ...
1
vote
0answers
37 views

How to preserve clearness while converting jpg to pdf file?

I would like convert a jpg file (a photo taken of two pages of a book) to a pdf file, with the goal of making the pdf file look like pages of a regular ebook file in terms of page size and ...
1
vote
1answer
176 views

How do i open it .emz files on linux?

I want to view or open .emz file on Linux. EMZ file extension is a Windows Compressed Enhanced Metafile file. How i have to open this file. Any software required? I don't want to convert through ...
0
votes
1answer
51 views

How does Raspbian draw images on the terminal?

When you turn a Raspberry Pi on, it displays three (or four) pictures of raspberries in the top-left corner of the screen. Now, as far as I know, you cannot draw images or any other non-text content ...
1
vote
1answer
64 views

Stop ImageMagick from rotating image on append

I took two photos with my phone, one horizontal and one vertical, and they show up fine in Eye of Gnome. When I try to glue them top-to-bottom with ImageMagick's convert: $ convert img1.jpg img2.jpg ...
18
votes
5answers
3k views

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 ...
0
votes
0answers
21 views

Image artifacts on virtual machine

I have installed windows 7 as a virtual machine on my Ubuntu set up. I have 2 monitors, one for Windows and one for Ubuntu. When I open Windows as a full screen I get these strange artifacts after ...
1
vote
1answer
29 views

How to use ImageMagick's convert to rescale an image, adding letterboxing to produce a fixed size result?

I have some arbitrarily-sized images for which I want to produce fixed-size 800x600 thumbnails, which keep the original image ratio and add white letterboxing to make up the rest of the space. I'd ...
1
vote
1answer
81 views

How can I display image clearly in xterm

All of the open source software that I used,only w3m can display image clearly,I want to try to display image in xterm,how can I accomplish it? I tried 'tput' command to change the color of output ...
0
votes
1answer
169 views

Mount .img created by ddrescue-gui

I'm trying to recover data after formatting my hdd. I installed ddrescue-gui and performed the following tasks: Select source (formatted hdd), no log, destination (img file inside separate hdd) and ...
1
vote
2answers
83 views

downloading images from webpage with different links

I am trying to download all the images from a webpage. The images are included as follows: <img src="https://alwaysSamePart.com/SomeRandomLinkThatVaries.jpg"> How should I parametrize my wget ...
5
votes
6answers
2k views

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 & ...
0
votes
0answers
59 views

ARM inforce IFC6540 not booting?

I created an image of the OS on the 64GB SD card by using dd. I did something like sudo dd if=./iforgot of=/media/usb/os/os.image I can't remember the exact stuff I wrote, but I do have the os.image ...
0
votes
1answer
153 views

NEF/RAW images too small in geeqie

A while ago I encountered this issue with my favourite Viewer geeqie. My RAW files are displayed too small and I assume it's just the thumbnail which is shown, not the actual image. (It used to work ...
2
votes
2answers
4k views

How to rotate an image in gs

How can I rotate an image with ghostscript? I am visualizing eps to screen. I am using the command: gs image.eps
7
votes
3answers
2k views

Irfanview alternative

I'm looking for some very simple image viewer with the following functionality: fast start next/previous navigation (in directory) full-screen mode reasonable format support keyboard controllable ...
2
votes
1answer
143 views

Cropping images using ImageMagick results in all output files (TIF) of same size?

I am scanning a rare old book (cookbook) for archiving using my Canon LiDE 110. The scans are .TIF files, and I want to batch crop them for uniformity, et cetera. This is how I am doing the batch ...
2
votes
3answers
152 views

merge two image folders

I have two image folders on my desktop both with around 600 images each. Both folders have some duplicate images and some images with the same file name. How do I merge both together - I do not mind ...
2
votes
1answer
265 views

Sort & organize a huge heap of photos [closed]

I have 168307 jpg photos in one folder - result of a recovery from an accidentally formatted hard drive. Casual browsing shows that 80% of files have been recovered ok, most even have valid EXIF data (...
0
votes
0answers
32 views

Error while installing linux-image-server and linux-image-gerneric

For a web program, I need to install these things: linux-image-server linux-image-generic With the version 3.13.0-37-generic + Here is my command in Debian 7, 64-bit: sudo apt-get install linux-...
2
votes
1answer
29 views

Semantic querying of local data

Just got told to find some specific pictures for a calendar as a gift. I have thousands of pictures and looking through all of them is annoying. I just realized that the requirements of the images ...