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

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0
votes
0answers
22 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
33 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
171 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 ...
0
votes
0answers
112 views

How to use Hadoop streaming input parameter for matlab shell script

Actually i want to execute my matlab code in hadoop streaming. My doubt is how to use hadoop streaming input parameter value for my matlab input. For example , This is my matlab file imreadtest.m ...
4
votes
2answers
324 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
0answers
83 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
62 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
58 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
191 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: ...
3
votes
2answers
580 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
votes
1answer
192 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
84 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 ...
0
votes
1answer
118 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 ...
7
votes
0answers
658 views

Most options are disabled/greyed-out in GIMP [closed]

I'm attempting to resize an image and save the resizes image. Google taught me that I should be looking for the scale image option, however it's disabled along with Save Image, Export image and most ...
7
votes
1answer
562 views

How can I combine multiple images into a single GIMP file with the command line?

How can I combine multiple JPEGs into a single, layered XCF via the command line? Using GIMP's graphical interface I can choose File ▸ Open as Layers..., but I don't see an analogous command-line ...
4
votes
1answer
2k views

How to crop borders/white spaces from image? [duplicate]

I have a lot of images which have white borders around it. I would like to crop those borders in one batch, preferably from command line. I believe that it can be done with ImageMagick, but I couldn't ...
1
vote
1answer
422 views

how to compare two images using SIFT in Linux and Matlab

i need to compare two images. the main purpose is Logo identification. i tried to use SIFT . but i do not understand how to mark key points and comparing. i am using Linux. I am trying to use ...
1
vote
1answer
41 views

How can I correct for a slow scanning document feeder?

We've got a HP all-in-one OfficeJet and I find that the document feeder on it is a bit slow, so all the scans come out a bit stretched. Everything we feed into this is A4 which should have an aspect ...
0
votes
1answer
341 views

Is there a command-line program that can output ascii art as an image?

Is there a command-line program that can convert an image to ascii art and then save that output as an image e.g. jpg or png? To illustrate what I'm in need of, I want to convert the image below into ...
3
votes
2answers
497 views

How do I add DBP to GIMP?

I have Kubuntu 12.04.01 with GIMP 2.06. On a previous installation I used DBP . I found it worked well on resizing images, and want to re-install it. Although I managed before, I cannot now remember ...
7
votes
3answers
671 views

How do I throttle a command in a terminal window?

I needed to run convert with a lot of images at the same time. The command took quite a while but this doesn't bother me. The issue is that this command rendered my computer unusable while the ...
6
votes
1answer
172 views

Image analysis software

I plan to install Ubuntu on a pandaboard/beagleboard in an industrial machine to assure the quality control of the products before they are processed by the machine. So the idea is to connect a ...
1
vote
1answer
214 views

Image Editors with Layering Capability

I am a keen photographer and have tried many FOSS image editors, finally settling on DigiKam/Showfoto with Kipi plugins. I occasionally use Dark table also as I think it is a promising project. ...
26
votes
6answers
19k 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, ...
14
votes
5answers
41k 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 ...
4
votes
1answer
1k views

What software can display raw bitmaps on Linux?

I have a raw file but I don't know the pixel format or the width of the image. I need a tool that can quickly display the data and allow me to try different formats easily. An example of such a tool ...
5
votes
2answers
3k views

Resize images to specific height value in ImageMagick?

I've looked around for this, and can't find an easily implemented solution. Currently I'm working on an application that deals with panoramas. As they come out of the batch stitch process, the ...
16
votes
4answers
8k 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 ...
1
vote
1answer
354 views

tool to scan similar images

What tools might be available in Ubuntu to scan many image files and detect similar ones despite different sizes, formats, etc? Support for batch mode/cli would be especially good. For example, so I ...
5
votes
2answers
9k 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
2answers
6k views

Lightweight (graphical) image editor [duplicate]

I am looking for a lightweight image editor for linux (not gimp). I need only one simple feature, namely to draw straight lines (with adjustable thickness) over an image. It should be possible to ...
0
votes
0answers
793 views

Inserting an Image into a PDF [duplicate]

Possible Duplicate: How to put a picture on an existing pdf file? Are there Linux/Ubuntu programs capable of inserting a partially transparent image into a PDF? I'm trying to "sign" a PDF ...
3
votes
4answers
250 views

Looking for mass cropping software

I'm looking for a tool than runs on Ubuntu that can let me: Open an image in a folder which has thousands Crop and rotate it Save as a copy, automatically named (not manually), with one click. ...
1
vote
1answer
464 views

Is there a Global Tool for Measuring the Dimensions of Anything that's Rendered on your Desktop? Alternative to kruler?

I do a lot of webdesigning, and often I have to compare the browser-rendered results to the layouts. Is box so-and-so really 25px away from box such-and-such. Yet for every aspect there is a ...
1
vote
2answers
2k views

Is there any image application that can cut part of an image and is faster/ligther than GIMP?

from screenshot I want to cut only part that is important. I do know I can do it using GIMP, but GIMP is very slow too start. Is there any default image application that can do it faster?
22
votes
3answers
2k 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 ...
3
votes
2answers
303 views

How can I make libjpeg available to python2.5?

I am running Ubuntu 11.04. Along with python 2.7 I have also 2.6 and 2.5. I am using 2.5 version to work and deploy my applications on App Engine. I have installed PIL (Python Image library) but ...
8
votes
5answers
2k views

How can I convert a folder of .pngs to .jpgs while setting the background color?

I have a folder of png files that have transparent backgrounds. I would like to convert them from the command line and maintain the images' transparent backgrounds. I'd appreciate any help. Since ...
14
votes
2answers
843 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 ...
37
votes
8answers
11k views

Which app can I use for easily annotating pictures/screenshots?

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 ...
44
votes
9answers
34k 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?