Manipulating and processing static images, techniques and software for such task should use this tag.

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44
votes
6answers
29k views

How can I scale all images in a folder to the same width?

I want to scale all images in a given folder to the same width (but different appropriately scaled heights). How can I do this using a GUI-based or command-line tool? For bonus points, is it ...
0
votes
1answer
9 views

Does digiKam supports RAW files of Canon G16?

When I open an RAW file of my Canon G16 camera (.cr2 suffix) with digiKam 3.5.0, the colors are wrong and there are black margins. What settings must be done in digiKam to process the file or does ...
0
votes
1answer
7 views

How to create JPG file in RawTherapee without changing original RAW

With RawTherapee 4.2, I want to edit the image and export it as jpg file, but without touching the original RAW file. Is it possible? At the moment I copy the RAW, edit it and put it to the queue to ...
2
votes
2answers
41 views

Convert folder with tiff to jpg by using mozjpg

I hear that mozjpeg is a nice jpeg compressor from Mozilla. How can I convert my folder with *.tiff to jpg from terminal using mozjpeg?
1
vote
0answers
16 views

Signal Processing Tools on Ubuntu

I am new to Ubuntu. I want to move away from MATLAB, should I install Octave or another product for Image and Audio Processing?
2
votes
1answer
18 views

How can I get ImageJ to open all files in the same session?

When I open more than one image from Nautilus in ImageJ they all open in a new session. If I already have one session running and open a new file in Nautilus ImageJ also creates a new session. How can ...
0
votes
1answer
505 views

building caffe: failed to see hdf5.h

Hello caffe is a lib for deeplearning. When trying to build that lib under 15.04, the compilation fails with the message: :~/App/caffe$ make all PROTOC src/caffe/proto/caffe.proto CXX ...
-1
votes
1answer
51 views

Is there a linux command to bulk optimize several image files in just one step?

I have a bunch of images in a folder: images/image1.jpg images/image2.jpg ... These images are not optimized for the web. Just wondering if is there a linux command to bulk optimize those images ...
17
votes
2answers
1k views

How can I turn photos of paper documents into a scanned document?

My scanner has broken! I do have a good camera though so I've taken a few photos of the documents I want to scan... However they look like photos of paper, not scanned documents: Images aren't flat ...
21
votes
7answers
85k views

How do I install python imaging library (PIL)?

How do I install the python imaging library (PIL) on Ubuntu? I tried doing sudo apt-get install python-imaging but now when i run python selftest.py (a script I got from somewhere on the ...
9
votes
1answer
355 views

How to convert a PNG strip to a GIF?

So, I made this animation in a program, however, it doesn't seem to support exporting as a PNG sequence so I could convert it to a GIF. The animation is over 100 frames so saving each image one-by-one ...
0
votes
0answers
176 views

can't install cpan module GD

Since I failed to install Image::Magick on my non-GUI Ubuntu server Ubuntu 14.04.2 LTS (read about it here), I tried to install another image-manupulation tool that can be used from a perl-script: GD. ...
74
votes
13answers
88k views

How to easily resize images?

I would like to know how to re-size images in Ubuntu. What is the easiest tool to do so?
17
votes
3answers
657 views

How can I take a screenshot from a window, with customizable margins

I need a tool that will do the following: selecting a window, will make a screenshot of that window with a x padding, like in the following image: So, in most of the cases x will be equal with y, ...
2
votes
2answers
389 views

Merging multiple images into one document and add any caption/label to them

I have multiple jpg and png images. I would like to combine them within one document (ODT/PDF/RTF). It can be easily done by means of following command: convert *.png allTogether.pdf However, there ...
3
votes
3answers
4k views

How to convert CR2 to JPG or PNG?

I need to convert a lot of CR2 photos to either JPG or PNG, no editing. How to do this?
15
votes
3answers
1k views

Stitch scanned images using CLI

I have scanned a newspaper article which was larger than the scanner glass. Each page was scanned twice: the top and the bottom parts, where the middle part appeared in both images. Is there a way to ...
11
votes
2answers
20k views

How can I split an animated .gif file into its component frames?

How can I easily split an animated .gif file? I want to see each frame. I would really prefer to not to export every frame to a directory. I'd like to view them individually in one application if ...
1
vote
0answers
72 views

Image manager (picasa like)

I'm trying to find an image viewer/manager which should have two main features: Its fast in displaying/load images. gpicview is fair good at this task but doesn't have the second point... I need a ...
0
votes
1answer
186 views

Faststone Image Resizer equivalent for Ubuntu

I am moving over to Ubuntu from windows (gradually) and have used Faststone Image Resizer for windows for a while and found it very good, Is there an equivalent piece of software for Ubuntu that ...
0
votes
1answer
159 views

Auto rotate scanned text

How to automatically rotate a scanned image? Even if you insert the paper into the scanned carefully. About one degree rotation is left. Is here no way to automatically rotate the scanned image? I ...
0
votes
0answers
37 views

Install module in ImageMagick

I am using Xubuntu 14.04 . I installed ImageMagick using apt-get .I need to convert some PSD to PNG, but it gives me an error "no decode delegate” . So I guess I need to install PSD module , but how ? ...
1
vote
1answer
41 views

How to find out what an action is called in gimp's Batch Image Manipulation?

I want to both zealous crop and remove image transparency for a bunch of files. I know how to start the batch job and I was able to find the action plug-in-zealouscrop for--duh--zeahlous crop. Yet I ...
2
votes
1answer
364 views

Resize and arrange pictures automatically on a canvas

I want to make a template for printing 9 cards of 63 x 88 mm on a DIN A4 paper I want to load the images so that they re-size themselves and I can print them directly. How can I do that?
2
votes
2answers
6k views

PIL install in Ubuntu 14.04.1 LTS

Followed the steps How do I install python imaging library (PIL)? for pre-setup libraries to install PIL on Ubuntu 14.04. However when I run pip install PIL --allow-external PIL --allow-unverified PIL ...
0
votes
0answers
33 views

Regarding comparison of 2 image sequences

I have images in 2 different folders, 100 images in each of the 2 folders.The images belong to photographs taken from 2 different simulations.The 100 images are the 100 time steps of the 2 ...
-1
votes
2answers
228 views

Ubuntu 13.10 - desktop freezes when opening or importing a large size image?

I tried to add a raster layer to my QGiS dufour(memory size of the image was 52 MB) and the desktop freezed. It is not just QGIS,I have also tried to open this image via image viewer and it has also ...
75
votes
6answers
70k views

Simple image editor?

I want something similar to "preview" in macs. For example: I want an image editor that ONLY does simple adjustments like increase/decrease contrast, saturation, exposure, color tinting.... rotate, ...
0
votes
1answer
320 views

can't convert my image by imagemagick on ubuntu 14.04 LTS

How to easily resize images? I want to use that method on ubuntu 14.04 LTS to convert my image First install imagemagick sudo apt-get install imagemagick Open a terminal and run this command: ...
1
vote
2answers
562 views

Convert emf to PNG image using command line

Is there any command line tool available to convert emf to png images? I tried imagemagic, but it says decoder for emf not found
0
votes
0answers
61 views

How to find and report memory leak

When I use any graphics or diagram editing software like Gimp or Dia (and I have tried a couple more) I suddenly find the cache sucking up all my free RAM and cache which slows the system down to a ...
0
votes
1answer
274 views

RAW exports wrong (Photivo, Rawtherapee)

I am using Ubuntu 13.10. I started shooting my images in RAW (NEF) and downloaded Photivo to process them. While working in Photivo, everything is OK. The problem is when you save the rendered image. ...
48
votes
9answers
19k views

Tool to add shapes, annotations and text using templates to images

Often I need to annotate (draw some arrows, lines, basic shapes like squares, ellipses etc and enter some text) on top of pictures (JPG, PNG images) and screenshots (again png images). I would also ...
20
votes
1answer
5k views

Does “diff” exist for images?

You can compare two text files very easy with diff and even better with meld: If you use diff for images, you get an example like this: $ diff zivi-besch.tif zivildienst.tif Binary files ...
12
votes
2answers
974 views

How to merge images in a single PDF file

I have some images which I want to merge. The meaning of merge is that, if I have 5 images, I want to put hem near each other is this way: I want to do that command line. For example the command ...
2
votes
1answer
164 views

Make a grid of images, then rotate and crop it

So I have a few thousand thumbnails that I want to stitch together in a slightly tilted grid. I figure that's not going to be the most obvious thing in the world to understand so here's an artists ...
3
votes
1answer
143 views

Why does my wallpaper look slightly desaturated?

Here's a screenshot of the original image overlaid on top of the same image set as wallpaper. The original is far more saturated. Is this a bug or is there a setting I can tweak to get my wallpaper ...
0
votes
1answer
288 views

Which package should I choose for the convert command?

Typing convert on my system (14.04) produces: The program 'convert' can be found in the following packages: * imagemagick * graphicsmagick-imagemagick-compat Why are there 2 packages providing ...
0
votes
1answer
779 views

How do I install JavaTM Advanced Imaging API v1.1.3 on Ubuntu 14.04

I'm trying compare images as described on this Website but therefor I need to have JAI installed. I have downloaded the file jai-1_1_3-lib-linux-amd64.tar.gz from here. I've also looked into the ...
2
votes
2answers
203 views

Any feature in ubuntu by which we can lossless compress images in bulk

I am looking for a way in which I can do a lossless compression of all images in a directory in a batch process. I don't want images to loose quality. I am running this website Winni.in, for this if ...
4
votes
3answers
6k views

How can I remove the grayscale page background of a PDF document scan while preserving the text? (Binarization)

My PDF contains 600 pages with images of text. It has 2 "layers". "Layer 1": Background colour image "Layer 2": Text image I would like to remove all background image layers in the total PDF file ...
1
vote
1answer
511 views

How to improve tesseract performance?

By all accounts, tesseract is superb. However, my results are dismal. I need to convert (digital, as opposed to from a book) text that I only have as a png. For instance: 2 3 academics 1 1711 2 ...
5
votes
3answers
1k views

Mass conversion of images to GIF

I have created over 600 images from a simulation I ran. I want to convert these images into a GIF format. Can you provide me a way to do so and one that allows me to show each image for >1second.
0
votes
2answers
82 views

Are there softwares available on Ubuntu for the conversion of a series of image files into an animated gif file?

Before you mention this question Tool to convert a sequence of numbered PNG files to an animated GIF? I would like to say I'm a total noob when it comes to ubuntu (I know I have 1375 rep but I have ...
2
votes
3answers
1k views

Batch converting swf to png

I have a folder with a lot of swf files. They are named that way: fis1.swf; fis2.swf; fis3.swf; ... fis20.swf. I want to convert all of them into png files. I know it can be done with swfrender from ...
23
votes
3answers
5k views

How do I create highlights on a screenshot?

In Chipaca's to Managing files and sync scenarios there's a screenshot with certain highlights. The highlights are the following: A row of a GUI list is highlighted by the other parts of the ...
0
votes
2answers
82 views

Adding white space to a shutter screen shot

I have a taken a screenshot with Shutter, and I wish to annotate the screenshot, so I click on edit. How do I add white space around the screenshot to put my annotations?
4
votes
2answers
575 views

Show difference between BMP files

Is there a command line tool to show the difference between two BMPs in such a way that it would return the difference in their header values in a human readable way? So, there would be information ...
0
votes
1answer
134 views

How can I resize 300 image at the same time? [duplicate]

I have a folder, which include ~300 images. I want to resize it to 800px wide in another folder. How can I do that? I have tried some ImageMagick command.
0
votes
1answer
150 views

Batch Convert Images from One Format to Another while maintaining directory structure, and removing originals

I've looked at this question, and while it works there a few issues: All converted images are placed in the directory from which the command is called. The original images are kept. I need to ...