3
votes
2answers
582 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 ...
0
votes
1answer
342 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 ...
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 ...
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, ...
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 ...
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?