Free visual turing software for linux

Visual Turing Machine project is a program that lets you create Turing machines with a point and click interface instead of using esoteric languages.
You can pack your complex machines into small boxes, and then reuse them as part of a bigger machine. VTM also features an infinite length tape.
Enhancements:
- New features include an n-ary set of symbols, multiple windows (MDI), a huge workspace (10000x10000 pixels) without a memory issue, the ability to edit your own machines, the ability to execute machines n times (where n is undefined), the ability to use expressions (like n+5) to execute machines, the ability to execute machines at desired speeds, statistics to see how many instructions were executed and how much tape was "used", and an easy wasy to translate the program to other languages.

Visual Oberon is a GUI library written in Oberon2.
VisualOberon (or short VO) is a collection of classes written in the programming language Oberon-2. The classes are designed to let application developer easyliy build graphical user interfaces for rograms written in Oberon-2. _VO_ is distributed nder the GNU library icense.
VisualOberon is _not_ a programming language. While it sounds like he Oberon version of VisualBasic, it is not an integrated developement nvirinment with build in text editor, builder and that stuff. It is urrently just a library. Nevertheless it can be the basis for such integrated environment.
Enhancements:
- Some prototype of a controller class for mapping input to object functionality.
- Improved Edit control.
- Improved file open dialog.
- Menu navigation via keyboard.
- More usage of STRING.
- Improved drawing including support for offscreen drawing.
- Improved Curses version, now works also on black white terminals - but still not perfect.
- Improved image loading.
- Bugfixes, bugfixes, bugfixes.
- Improvement of VGD. Added more VGD handler.
- Support for Xft version 2 as found in newer distributions.
- Packages for Windows and Carbon modules, needed for developing applications for Window sand Mac OS X, used by the coresponding driver module sin VisualOberon.

Visual Automata Simulator is a tool for simulating, visualizing and transforming finite state automata and Turing Machines.
Visual Automata Simulator is a DFA, NFA and TM simulator.
Main features:
- Creates, simulates and transforms DFA and NFA machines
- Creates and simulates TM
- Batch tests for TM: useful features to test a bunch of files quickly!
- Easy-to-use GUI interface (multi-documents)
- Smart links between objects
- Machines can be drawn using the mouse - and resized at any time
- Multiple machines can be created in a single document
- Multiple documents can be opened at the same time
- Documents can be saved and reloaded from disk
- Debug mode to see exactly how the machine is working (each step has a different color)
- MacOS X GUI compliant.
Enhancements:
- FA and TM machine can be exported to EPS file
- integrated update manager
- preferences: can specify the character used to define an epsilon transition
- fixed a bug where epsilon transition were not considered when starting directly from a state instead of following a non-epsilon transition.

VisLib is a GTK application for visualizing, editing, and searching hierarchically-organized couples of visual and textual information, from family or holiday photographs, desktop backgrounds, digital comics, to material samples or bacterial cultures photographs.
Enhancements:
- Record and category edition works. File saving in VLB-1 format works.
- Categories and record reordering tools were added and work.
- The edit menu has been completed.
- The full loop between file creation, filling, edition and saving is operational.

Visual difference metrics can predict whether differences between two images are visible to the human observer or not. Such metrics are used for testing either visibility of information (whether we can see important visual information) or visibility of noise (to make sure we do not see any distortions in images, e.g. due to lossy compression).

The image below shows how two input images, a reference image (upper left) and a distorted image (lower left), are processed with the VDP to produce a probability of detection map (right). Such probability of detection map tells how likely we will notice a difference between two images for each part of an image.

Red color denotes high probability, green - low probability. Red color is mostly present in the areas where there is a snow covered path. Because of smooth texture of the snow, there is not much visual masking and distortions are easily visible.

Although there are dozens of visible difference metrics that serve a similar purpose, our Visual Difference Predictor for HDR images (HDR-VDP) has two unique advantages: firstly, our metric works with a full range of luminance values that can be meet in a real word (HDR images), and secondly, we offer a complete source code for free.

High Dynamic Range Visible Difference Predictor (HDR-VDP) can work within the complete range of luminance the human eye can see. An input to our metric is a high dynamic range (HDR) image, or an ordinary 8-bits-per-color image, converted to the actual luminance values. The proposed metric takes into account the aspects of high contrast vision, like scattering of the light in the optics (OTF), nonlinear response to light for the full range of luminance, and local adaptation.

vsa is a visual sound analyzer (eye candy to go along with audio) for GNOME and EsounD. vsa supports layering any number of visualization, background or filter plug-ins, in any order.
vsa - the application version
vsa_applet - the GNOME panel applet
After installation vsa should be accessible from the gnome menu under Multimedia -> Visual Sound Analyzer and the applet, panel -> Add applet -> Multimedia -> Visual Sound Analyzer.
Fullscreen mode requires a 320x240 mode line in your XF86Config file. Unless you have a very fast machine (faster than 450 mhz) modes higher than 320x240 are not recommended. But of course you can set the frame rate lower if you really want to use a higher resolution.
To add a plugin to the display list, drag it from the list of available plugins to the display list. You can channge the order by drag & dropping plugins around. To configure a plugin, double click on the plugin name in the display list, to see more information about a plugin, double click on the name in the available plugins list. To delete a plugin from the display list, just drag it back to the available plugins list.
Enhancements:
- Release version 0.9.7
- Added non-DGA fullscreen mode