Free image software for linux

Nautilus Plugin to resize selected images into two formats (500 & 800 px). Can also be used as a standalone script.

stic bundles a few Linux tools which are intended to support the task of collecting an unreasonable amount of pictures (preferrably in JPEG format).
similar
a program for detecting duplicate or very similar images. It maintains a
database of characteristic color samples which it compares with submitted
pictures. similar depends on libjpeg and ImageMagick s convert (on a
modern Linux desktop system these components should already be present).
Storage medium may be a usual filesystem or a MySQL database. There
also is a MySQL UDF extension to compare image samples within SQL queries.
similar contains the communications module described at sagent.
simv
a core program to perform file management tasks on an image collection.
Its main purpose is to coordinate file movements with the content of
similars database. This applies to importing new files which get tested
against the existent collection, as well as to inform similar about moving
and deleting files within the collection.
simv depends on an external image viewer like ImageMagick s display
(should already be present on a modern Linux desktop system) or John
Bradleys xv (quite a fast one).
simv contains the communications module described at sagent.
sagent
a standalone version of the communications module used in simv and
similar. This software receives input from its start terminal and multiple
clients, distributes several types of output back to them, and is also
able to act itself as such a client.
Since communications mainly use TCP/IP there is an encryption layer
(Blowfish with 128 bit keys) which provides user authentication. Any
single activity of such a user may be particularly permitted or denied.
Secure connections should be possible that way as long as one can defend
the keyfiles and programs on client and server host against foreign
access.
Front-end connection software is available in C, Tcl/Tk and PHP3 to build
custom clients. In the most primitive case even telnet can act as a
client.
The standalone program sagent may be used as communications node in a tree
of clients. Another purpose is to be a shell frontend which sends commands
to a server and receives its replies.
snntpbatch
a command line based NNTP (newsgroups) client. It is mainly intended for
automatic download of images by use of a filter language. Nevertheless it
also downloads the message texts and converts them to HTML code which
includes the downloaded images. Also, it is capable of automatically
posting sets of images to the newsgroups.
The tools are designed to be very independent of the system flavor. On an
average Linux desktop there should be no need to update existing system
components. Actually one could use stic without having display equipment for
graphics.
Any program activity which is possible in dialog may also be performed in
batch runs. Therefore the tools are quite suitable for users who like to get
boring tasks automated and manual tasks simplified.
All tools code is open source and distributed under BSD license.
Example images Credit: U. S. Fish and Wildlife Service (see images/CREDITS)
Enhancements:
- The new encrypted protocol version 0.2 is standard now : SHA-1 seal, 256 bit keys, variable chaining initialization vector.
- The protocol of a connection is chosen by the client and may or may not be accepted by the server.
- See sagent command -security options clientprotocol , serverprotocol.

QVV is image viewer based on TrollTechs Qt Toolkit! QVV is small, simple, handy ( last one is IMO ). However the sources are there -- you can come up with your own opinion.

NOTE: QVV 0.16 AND LATER VERSIONS REQUIRE QT 3.x!

QVV allows you to browse directories with lynx-like interface, view images browse next/prev image while showing image window or in the directory list, multiple image windows and directory browsers can be opened/closed with a single key, panning easy with arrow keys or mouse and few other things as well.

QVV is only few hundred lines of source code and handles as much file formats as Qt does -- JPEG (all sorts of jpegs that jpeglib supports), PNG, GIF, XPM and more..

If you are like me you have hundreds or even thousands of images ever since you got your first camera, some taken with a normal camera other with a digital camera.
Through all the years you believed that until eternity you would be able to remember the story behind every single picture, you would be able to remember the names of all the persons on your images, and you would be able to remember the exact date of every single image.
I personally realized that this was not possible anymore, and especially for my digital images - but also for my paper images - I needed a tool to help me describe my images, and to search in the pile of images. This is exactly what KimDaba is all about.
With KimDaBa it is today possible for me to find any image I have in less than 5 seconds, let that be an image with a special person, an image from a special place, or even both.
There is of course no such thing as free lunch - with KimDaBa this means that you have to annotate all your images before you are set. KimDaBa is, however, highly optimized for annotating images, so annotating 100 images in 10 minutes are no way impossible.
Enhancements:
- BUGFIX: Using kapp->invokeHelp to show help rather than kapp->invokeBrowser, as the later doesnt work unless your default browser is konqueror.
- BUGFIX: the category was sometimes shown twice in the status bar
- BUGFIX: remove tokens didnt work for KDE 3.4
-

Semi-Batched-Image-Editor program is an image editor for Linux.
The problem: Got a huge amount of scanned pictures (from your digital camera, or as Picture-CD from your favorite lab)? Want to rotate some of them to the right orientation? Select a good detail? Scale to a given output format? Want to do this with as less as possible mouseclicks?
The solution: SeBIE - the Semi-Batched-Image-Editor.
Main features:
- Input filename selection via regular expressions.
- Create output filename via regular expression and substitution.
- Select image details with a given proportion.
- Scale to a given output format when saving.
- Apply some color correction (at the moment only gamma curve correction is possible).
Why Semi-Batched? Because SeBIE is not fully batch processing. A rest of user interaction is still needed (and wanted).
SeBIE is written in C using the gdk/gtk (glib-2.0.7/gtk+-2.0.9) toolkit.
Installation:
Get the source distribution from the download page and unpack:
tar -xvzf sebie-0.9.tar.gz
Change to the sebie source directory:
cd sebie-0.9
Run the configure script:
./configure
Build the executable:
make all
And install it as root:
make install
Start the application using the command sebie....
Enhancements:
- Add events delete_event and destroy to main window.
- Handling resizable drawing area.

Image Resize Wizard is a PHP script witch you can add to your web site that enables your visitors to re-size their images quickly and efficiently.
The user just selects their image and the largest side length and click "resize". Image Resize Wizard is very easy to install and can add some very useful functionality to your site.
Main features:
- Image Resize Wizard is easy to install. Just unzip and upload, or if youre using it on a local server, just unzip!
- The Image Resize Wizard interface is as simple as it gets. Just two inputs, a click, and the user gets their image resized.
- No odd libraries needed, the script should work on most servers with PHP installed.

Dynamic Image Resize Wizard is a free PHP script that enables your visitors to re-size their images quickly, efficiently and on-the-fly.
The user just enters the URL of the image they wish to resize, and the length they wish the image to be, and the Wizard does the rest.You can use it for your own site or for your site visitors, and its easy to integrate in with other scripts.
Main features:
- Dynamic Image Resize Wizard is easy to install. Just unzip and upload, or if youre using it on a local server, just unzip!
- The Dynamic Image Resize Wizard interface is super simple and the instructions are easy to understand.
- The script is easy to integrate in with other site components.
- Perfect for resizing an image without getting that annoying grainy look that comes from trying to shrink an image using just HTML.

Open Searchable Image Catalogue (OSIC) is a system for storing large numbers of image files with associated metadata.

This data can later be used to search the database for images. Open Searchable Image Catalogue works particularly well where the images need to be accessible to a large number of people or over a large geographical distribution.

Images can be compressed (and decreased in size) on-the-fly so that they can be viewed quickly over a slow network such as the Internet.