Something related to visual data files

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0answers
23 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
3k 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
23 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 ...
3
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0answers
50 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 ...
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0answers
7 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.), ...
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1answer
75 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?
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2answers
94 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
39 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
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1answer
980 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
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1answer
30 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 ...
1
vote
1answer
36 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
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4answers
53 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 ...
54
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13answers
130k 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 ...
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
2answers
736 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 ...
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0answers
35 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
85 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
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1answer
42 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
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1answer
35 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
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0answers
20 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
27 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 ...
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1answer
52 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
99 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
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2answers
59 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 ...
3
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3answers
1k 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 ...
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
52 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
117 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
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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
1k 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
118 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
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3answers
126 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
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1answer
180 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
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0answers
28 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 ...
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 ...
1
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0answers
15 views

Command to render all images in a dir into one browser window, from term?

Command to render all images in a dir into one browser window, from term? What's a good command from the terminal (I'm running OSX 10.10.2) to render all images in a directory into one browser ...
0
votes
0answers
16 views

What Linux tool can I use to measure font sizes in a PSD file?

I've tried gimp (clicking the texts with the Text tool), but it doesn't work (adds a new text instead of focusing on the existing one). The font information is already there (I've asked a friend with ...
0
votes
1answer
82 views

How to get a position of a specific image within another image?

I have many PNG screenshots with an identical piece of graphic in each of them. The piece has the same dimensions in all of the images. What command line program can I use to find the position of it ...
1
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0answers
412 views

Using wget to download images in facebook conversations

This looks a bit harder than usual. I'm a new wget user and I was thinking that maybe it's possible to login into Facebook and download images from a specific conversation. I mean, I'd like to tell ...
4
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3answers
255 views

How do I find all square images in a directory

The images are stored in JPEG and PNG files. I want to get a list of those of them that are square.
11
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4answers
4k 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 ...
2
votes
2answers
1k views

How to convert multiple XCF files to PNG?

I have a folder with a lot of xcf files which I want all to be converted to png files, at best via a one-liner from bash. How can I achieve such a task?
3
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2answers
629 views

How to find all images containing any text?

I got a lot of images, and I need to find, which of them contain any text in English (to delete them). Is it possible to do it automatically?
10
votes
6answers
9k views

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 ...
1
vote
2answers
456 views

what is best directory for storing uploaded files / images from my website

i am building a webpage where a the user can upload images. i am going to use the file-system to store my images. i was wondering what is the best directory to hold such data? is it /var/ directory? ...
0
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0answers
44 views

imagemagick: compositing images with fractional X/Y offsets

Using a one-line imagemagick command, how can the offset of a destination image be defined in relation to the size of the source image? The following command superimposes two images with absolute ...
0
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1answer
98 views

MimeType Desktop entry for all image files

I want a desktop entry like MimeType=image/ETC to create a context menu action in Dolphin (File Manager in Linux Mint KDE) that would appear only for images. To the question "Is there a generic ...
9
votes
4answers
6k views

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 ...
4
votes
2answers
807 views

PNG viewer that can display text chunks metadata

Is there a PNG viewer that can display text chunk metadata? Ideally, I'd like a way to view arbitrary chunks.