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

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3
votes
3answers
67 views

How do I capture a screenshot of a window, and all the windows on top of it?

I'm using screenshots as regression tests for GUI software. Before deploying each new version, a series of automatic tasks is run against the old and the new version, screenshots are generated after ...
8
votes
2answers
122 views

ImageMagick convert and low RAM

Please consider the following command for the imagemagick package: sudo convert -resize 460x200 /path/to/test1.jpg /path/to/test2.jpg Now test1.jpg is a fairly large image (12.5MB), but not unheard ...
0
votes
3answers
55 views

How to convert .jpg or .png image to .raw

Is there any software that converts JPEG or PNG to RAW? I have been looking around and just found a few software that make the inverse anyway.
1
vote
1answer
42 views

Scale down image such that it fills a square of 100x100

I want to create thumbnails for all images of a folder. I also want the images to fit in a square of 100x100 pixels. So after scaling the images down, while the smaller side needs to be 100 pixels, ...
-1
votes
1answer
24 views

Is there any “Background Removal” Program in Ubuntu besides GIMP?

I need to remove background from images locally. I use photoshop in windows and GIMP in Linux but GIMP is too much for me for simple background removal purpose. Is there any easier alternatives for ...
0
votes
2answers
52 views

how to convert .svg image to .png? [duplicate]

I would like to change the color of some SVG pictures and then save them as PNG images. I have installed GIMP. I am running Ubuntu 14.04. How can I do that?
0
votes
0answers
25 views

Bruteforce download and convert images

So, I'm basically trying to bruteforce download from a server that doesn't seem to support directory listing or FTP. I know the image files are all png and have numeric filenames ranging from 0-500. ...
1
vote
1answer
33 views

Resizing pictures

Currently running Ubuntu 15.04. I am trying to resize a set of photos which original size of each is 3906*2602. Whether I try with darktable or mogrify specifying 1920*1080 I end up with 1621*1080. ...
0
votes
1answer
884 views

How can I install a package from Octave Forge?

How can I install a package from Octave Forge? I am using imresize function and I get this error warning: the 'imresize' function belongs to the image package from Octave Forge which seems to not ...
2
votes
1answer
11 views

Convert image color channels?

So, I have an image and I want to be able to set the Red and Blue values so they're equal to the value of the Green in the image. This is because the image is entirely Green and I want it to appear ...
3
votes
1answer
38 views

Gimp color tools don't work

When I try to run color modification tools like right-click -> Colors -> Colorize (or any of the color tools, Brightness / Contrast, Hue / Saturation, etc), nothing happens: When I click Colorize ...
0
votes
1answer
225 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 ...
0
votes
2answers
43 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 ...
2
votes
2answers
126 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?
2
votes
1answer
30 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 ...
-1
votes
1answer
117 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 ...
18
votes
2answers
6k 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 ...
9
votes
1answer
788 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
1answer
2k 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 ...
2
votes
2answers
378 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. ...
2
votes
2answers
1k 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 ...
2
votes
0answers
104 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 ...
17
votes
3answers
783 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, ...
0
votes
1answer
362 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
273 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 ...
2
votes
1answer
472 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?
0
votes
1answer
430 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: ...
3
votes
3answers
940 views

Convert emf to PNG image using command line

Is there any command line tool available to convert emf to png images? I tried the convert utility from ImageMagick, but it says decoder for emf not found
1
vote
1answer
47 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 ...
12
votes
2answers
1k 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
2answers
10k 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 ...
2
votes
1answer
214 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
180 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 ...
1
vote
1answer
579 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 ...
3
votes
1answer
1k 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 ...
5
votes
3answers
7k 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?
2
votes
2answers
258 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 ...
6
votes
3answers
2k 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
103 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 ...
0
votes
1answer
352 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. ...
0
votes
2answers
91 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?
2
votes
3answers
2k 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 ...
4
votes
2answers
650 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 ...
1
vote
1answer
905 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 ...
0
votes
1answer
171 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 ...
0
votes
1answer
148 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
539 views

How to converting HEX jpg to BIN jpg

I have jpeg files, they are was saved in DB in hex format. I import them into txt files, but files filled like this: ...
5
votes
3answers
8k views

How can I remove the gray-scale 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 as ...
0
votes
1answer
773 views

couldn't load image in opencv(python)

I installed opencv & python in ubuntu12.04. I'm unable to load the image. I tried $ from cv2.cv import * which showed the error "from: can't read /var/mail/cv2.cv" How to solve this?
0
votes
1answer
458 views

Use gpicview to scroll between all images in a directory using mouse or keyboard like arrows or pageup

With GPicView 0.2.3 and Lubuntu 13.04 running LXDE , the next/previous function never seems to work. Keyboard shortcuts show that the arrow keys should move between next and previous images, but ...