Something related to visual data files

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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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1answer
44 views

Digital Photograph Forensics Software for Linux

Is there any forensics software that can handle digital Photograph for linux ? An opensource software is preferable
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1answer
64 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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1answer
41 views

Replacing a partition within a .img with another one

I have 2 .img files (embedded Linux images, each with 2 partitions- a boot partition and a rootfs). I need to replace the rootfs partition in one with the other's. How can I do this In the .imgs ...
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15 views

OCR for getting text from an image. Error management

I want to use an OCR program to obtain some text in an image. The text is not black on white so I don't know if it will be possible. wget -q -O image ...
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1answer
30 views

How to extract comment from ppm file?

I have ppm file X.ppm with comment : xxd X.ppm|head -10 0000000: 5036 0a23 206d 6967 6874 796d 616e 6465 P6.# mightymande 0000010: 6c20 2d32 2e38 3034 3132 3232 3037 3833 l -2.80412220783 0000020: ...
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1answer
21 views

Clonezilla fails while cloning/imaging the entire HDD

I am using Clonezilla Live DVD to image my entire HDD consisting of several partitions. An overview of the partitions can be seen in the following excerpt from the log file of Clonezilla: Machine: ...
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2answers
146 views

How to split an image vertically using the comand line?

So, say I have a large 800x5000 image, how would I split that into 5 separate images with dimensions 800x1000 using the command line?
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1answer
201 views

Setting image for i3-lock: “Could not load image x: out of memory”

I use this command for locking screen: i3lock -i /home/freyja/pics/owl.jpg The screen is locked, but there is no picture (only white background). When called from console the command says: Could ...
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1answer
97 views

Ways to convert and combine image files into a pdf file?

I have about 190 image files (png and jpg) in a directory. For more information, each image has 2500 x 3072 pixels, and about 500KB. I use the command convert from ImageMagik to convert and combine ...
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1answer
49 views

Sorting image files based on whether the content is picture or graphics: updating an older solution?

Someone wanted to sort files in a directory according to whether the files are pictures(camera) vs. design graphics. On Stackoverflow, there is an older solution/proof-of-concept involving the ...
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4answers
124 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.
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52 views

Match the palette color property output list from Imagemagick convert with online color descriptions?

I use ImageMagick to extract a linear swatch of unique colors from some image to explore different color palettes; list properties of these colors; and make an approximation of the "average" color - ...
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1answer
37 views

running script with -o argument pointing to mount point of sd-card

I was trying to install Angstrom Linux on Colibri T_30 board---but I am stuck at one point where it specifies that run update.sh script with optional -o argument pointing to mount point of ...
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1answer
67 views

Convert all non-JPG images to JPGs

What command can I use to convert all images in a folder which are not JPGs (PNG and BMP primarily) to JPG? I'd also like the conversion quality to be 100%. And I'd like the converted images to ...
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1answer
45 views

How to add searchable text to an image?

I need to add text to an image (original image can be jpg, gif, or bmp) file, how can I do it? I added the texts with shutter to an jpg and converted to pdf. Tesseract has not been able to turn the ...
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1answer
291 views

Combine multiple PDF files into one (arranged in a matrix)

Having a set of PDF files, lets say: in-01.pdf, in-02.pdf, in-03.pdf, ... I would like to combine all of them into a single one, forming an M x N matrix. The command montage allows for doing so (M ...
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53 views

Get color depth of BMP

I have a .bmp file, and I want to check the color depth. How do I do this? I have tried both file and convert, but they give different outputs, so I don't know which is right.
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1answer
68 views

How can I make a montage which seamlessly tiles the same one image file?

I would like to preview how one single image (768x1024 px .tiff) would look as a pattern by generating an output file where it is tiled in such and such a way (4x4, 5x5, etc.). The image should be ...
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2answers
97 views

How to copy text from an image in a pdf file?

I can view a pdf image with text using the evince document viewer, however I cannot select the text in the image to copy and paste. How do I copy text from an image in a pdf file?
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1answer
71 views

Merging pairs of TIFF files in a directory

For example, say a given directory has 1000 TIFF files named sample1.TIFF, sample2.TIFF, etc., all the way to sample1000.TIFF. I want to merge each pair of files: sample1.TIFF and sample2.TIFF are ...
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1answer
64 views

Find Largest Image Dimensions in Folder

I need a command which will allow me to search a folder of images for the images with the biggest width and the biggest height. As of now I'm using XNViewMP to find this info, but I'd like a faster ...
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3answers
79 views

Software for image files analysis

Is there some program to analyze files, especially image files, for Linux, with functionality similar to hex editors, which will show what bytes changed after I paint some area of the image and etc.
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2answers
218 views

TIFFReadDirectory warning: unknown field

When trying to view tif image files in feh, the following pair of error messages is printed to stderr: TIFFReadDirectory: Warning, Unknown field with tag 37553 (0x92b1) encountered. ...
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1answer
36 views

feh: maintain zoom setting

When browsing through the images in a directory with feh, the magnification can be changed by use of the up/down arrow keys, but the setting is lost as soon as the next image in the series is loaded. ...
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90 views

Can't get Kernel image

I am trying to write the kernel image in my ARM, I am using an ARMStone a9 here is the information about this board: http://www.fs-net.de/en/products/armstone/armstonea9/ The problem is that I am ...
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1answer
226 views

mounting/converting v2i image in linux

Is it possible to mount a v2i image in linux? Is there any mount.v2i program? Or is there any convertion tool to convert v2i image to something else like iso ? How can i Mount/Convert a v2i image? ...
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1answer
335 views

How to draw a single pixel in a terminal?

Until now I used characters to draw images, shapes etc in a terminal. Is it possible to draw a single pixel? Let's say: foo 1 1 red This will draw a red pixel at the coordinate (1, 1). Is there ...
4
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1answer
310 views

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 ...
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1answer
173 views

Converting and rescaling a lot of png images to jpeg

I have a lot of .png images in a folder. Is there a command (or software) that can convert all them to .jpg and (simultaneously) rescale the created .jpg files to 25% of their original size?
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1answer
516 views

Conversion from PNG to EPS

I would like to convert PNG images/graphs to EPS without losing even a bit on resolution. All the commands I tried (potrace, autotrace, convert, gimp) decrease the resolution quality.
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1answer
595 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 ...
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0answers
217 views

Using wget to dowload images in facebook conversations

This look a bit harder than usual. I'm a new wget user and i was thinking that maybe it's possible to somehow login into facebook and download images from a specific conversation. I mean, i'd like ...
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1answer
382 views

gphoto2 hook scripts - a guide?

I posted this on raspberrypi.stackexchange but was directed here. I'm new to Linux / Unix, and I'm trying to get a tether / display script going with gphoto2. gphoto2 --capture-tethered ...
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0answers
45 views

Image set compression

Is there a good open source (not exclusive to Linux) for compression of a set of similar images? I have thousands of documents scanned but I do not access them often. The documents are forms, with ...
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2answers
38 views

How can I automatically create a document that allows me to compare a list of 4 .png files side-by-side?

So I have a list of 4 .png files, and I'd like to auto-pipe this to some document that puts them all side-by-side for easy comparison. I'm thinking of automatically putting them in a HTML file. So ...
2
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1answer
91 views

Apply image perspective through batch mode in gimp

I need to perform image perspective operation from command line? Is there any place where documentation is provided properly. I have asked this question on stack overflow, you can check here. If any ...
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1answer
296 views

Imagemagick: set IPTC parameters in jpeg image

With the Imagemagick command $ identify -verbose image.jpg so many properties of the image are shown. For example, in the output I can find Profiles: Profile-8bim: 1058 bytes Profile-iptc: 1017 ...
4
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1answer
931 views

ImageMagick (or other) for UTF-8 text to image

I'm trying to create many single-character images using convert. The purpose is to provide a plastics specialist with images to print onto keyboard keycaps. The ImageMagick documentation suggests ...
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6answers
904 views

Can I see images and watch movies inside the terminal emulator

Can I see images and watch movies inside the terminal emulator? In case of virtual console I can do it via framebuffer, but what about terminal emulators?
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0answers
67 views

pdf viewer for text documents saved as images — bad rendering

The situation I have in mind is a .pdf document obtained from a scan, or at least such that some readers view it as an image (as opposed to text) and render it badly (see the screenshot below) My ...
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3answers
337 views

How to rescale several images to same size

I have several image files in a directory. These images are similar size and have same background color. How can I make all images same size by adding background like this attached image?
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1answer
1k views

How can I extract images from a pdf file? [duplicate]

I have a pdf file that consists of an image per page. Are there any command line programs that can extract these images?
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6answers
628 views

Options to show images when on the console

When I am on the console (the tty, the virtual terminal, which you reach with Ctrl+Alt+F1-6, not a terminal emulator), what options do I have to view images, tiff, whatever that's not text?
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2answers
804 views

Command Line Photo Organiser Like Shotwell but to run on headless server

Does anyone know of a program (or even bash script) that can take photos from various folders and then consolidate them into one place and organise them into a directory structure by date in the way ...
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3answers
577 views

Why does boot from SD card with my custom kernel result in “VFS: Cannot open root device”?

I'm using an embedded board ARM9 SAM9G25. I want to boot from SD card. When I build a linux kernel with a built-in rootfs (initramfs) then it boots. I want to separate the kernel from rootfs and I ...
4
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1answer
3k 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 ...
2
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1answer
499 views

I want to understand Buildroot - the 3 compression config options (kernel, initramfs & rootfs)

I'm using buildroot to generate my images and for sure there is the option of compression with the help of different methods (LZO, LZMA, gzip, ...). So far i found these 3 compression options in ...
2
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2answers
778 views

How to get JPEG thumbnails quickly

My camera is very basic (understatement), but it does have one notable feature: its thumbnail mode is impressively fast; it loads a screenful of 9 thumbnails in less than a quarter of a second. Now, ...
4
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3answers
2k views

How to batch convert bitmaps to SVGs?

I have many gray scale bitmaps that I need to convert to a vector format, such as SVG. I have been using Inkscape, which gives nice results, but this takes about 10-15 minutes to open, convert, and ...