Free similarity software for windows

ImageSorter is a graphical media browsing tool which will allow you to automatically sort any pictures by color similarity (and thus by image content). All images within a folder are sorted in such a way, that similar images are positioned close to each other.
This sorting scheme makes it much easier to find a particular image within a huge set of images than other approaches used today that mostly can do a sorting by name, date or file size only. The sorting results of ImageSorter are more impressive for larger image sets (a folder containing 1000 images compared to a folder containing only 10 images).
The use of digital images has increased enormously over recent years, however searching and browsing large collections of images efficiently remains a problem. Existing applications allow sorting images by name, date or file size. However images cannot be sorted by their content.
Content-based image retrieval (CBIR) systems perform an image search by comparing elementary statistical features of the images. Typical image retrieval systems use low-level features like shape, color or texture, whereas human understanding of an image is considered to be much deeper based on years of acquired knowledge.
Due to this ?semantic gap? none of these approaches could reach the readiness for marketing until now ? mainly because users rate the search results as unsatisfactory. In addition the user has no feedback if all relevant images are found. If no query image is available, the search cannot be performed at all.
The program ImageSorter takes a different approach. The methods for content based image retrieval are not used for searching but for performing an automatic sorting of huge image collections.
The current version of ImageSorter sorts images by the similarity of their color layouts. Future versions of the program will support additional ordering criteria. All images within a folder are sorted in such a way, that similar images are positioned close to each other. This sorting scheme makes it much easier to find a particular image within a huge image set.
Naturally also ImageSorter does not understand or recognize image content and cannot distinguish between different people or landscapes. However this program does not need a query image and is suited to display large sets of up to some thousands images in a visually well organized way that can easily be navigated.
Main features:
- Sorting images by date, size (of the image file), name (of the image file), color structure of the image
- Displaying modes: 2D plane visualization, sphere visualization
- Selecting complete folders (at the moment, you can just select one single folder)
- Open selected images in a separated window
- fast visualization of the sorting result after the first sorting by saving the image data and the sorting result in a seperated file

WinHardLink 1 is a utility for designing virtual paths to the file system objects. It is a freeware. Virtual paths can simulate files, folders and even disk drives. The operating system (OS) treats virtual paths the same way it treats physical paths. In essence, OS is misled by replacing the real path with a virtual (false) one. One can find a certain similarity between virtual objects and the well-known shortcuts. While they are really quite similar in many ways, virtual paths can be used for a much wider range of tasks. Shortcuts (which are essentially files with the extension .lnk) are only used to simplify the user's navigation in the Windows Explorer. But virtual paths, as mentioned earlier, aren t any different from the file system's physical objects, and any actions performed on the virtual object are the same as the ones performed on the corresponding physical object. In other words,the virtual path a super-shortcut or a symlink (as it's called in UNIX) is called.

A program that will search documents of any format on your desktop Full-text document search application. SeachInform combines phrasal search with the consideration of morphology and synonyms thesaurus with searching documents similar by content.
SearchInform was created for fast search on a computer at large data levels. Fast indexing (6 GB/h). Support of any text formats (txt, doc, rtf, pdf, htm, html) and various data sources. Indexing information systems fields (Access, MS SQL, Oracle, any DBMS supporting SQL).
Searching documents similar by content is based on the SoftInform Search Technology and implemented by means of mathematical analysis of the document structure and the selection of similar words, word combination and text arrays.
Searching documents similar by content involves the whole plurality of words used in the document with the consideration of all word forms and synonyms. The search can be pin-pointed with the help of important words that the application will take into account in the first place and do an additional analysis of documents similarity. SearchInform gives you the ability to act while others are still searching.
Main features:
- Phrasal search with account of morphology and the synonyms dictionary
- The new technology for searching similar documents SoftInform Search Technology
- High indexing speed (from 15 to 30 Gb/hour),
- Index size about 15-25% of the actual text information amount
- Support of over 50 widely used text file formats, Outlook and TheBat electronic messages, mp3 and avi tags, as well as ICQ 99-2005 andMicrosoft Messenger logs.
- Flawless operation with archives
- Universal data sources (indexing DBMS and various informational systems fields)

Image Comparer is a .Net program developer tool for comparing two images that look alike. It doesnt matter if images have a different resolution or color range.
Supported image formats are: EMF, EXIF, JPEG, JPG, BMP, GIF, PCX, PNG, TIFF, ICO, WMF. Ability to see two files and see the differences.
The Image comparer is also available in the form of a Dynamic Link Library module (dll) that can be attached to any application to compare Image files.

A quick and easy to use program that finds and deletes all your duplicates If you get too many pictures on your harddrive, downloaded or photographied, from several different sources, it may happen that you have many duplicates.
VisiPics does more than just look for identical files, it goes beyond checksums to look for similar pictures and does it all with a simple user interface. First, you select the root folder or folders to find and catalogue all of your pictures. It then applies four image comparison filters in order to measure how close pairs of images on the hard drive are.
Visipics is a program that is considerably faster than any other commercial product and has an interface that let you do other things while Visipics automatically finds your duplicated images.
VisiPics will detect two different resolution files of the same picture as a duplicate or the same picture saved in different formats, or even duplicates where only minor cosmetic changes have taken place.
All detected duplicates are shown side by side with pertinent information such as file name, type and size being displayed. Its auto-select mode let you choose if you want to keep the higher resolution picture, space-saving filetype, smaller filesize or all of the above. If you are insecure over what you really want to delete you can manually select the images you dont want to keep and delete them yourself.
Main features:
- Extremly fast compared to most commercial software
- Uses Hyperthreading and Multi-processors systems
- Highly efficient results with adjustable similarity levels
- Easy to use Interface, preview your duplicates easily and pick the ones to delete with a simple click
- Starts to display the results while scanning, you dont have to wait to delete your duplicates
- Smart Auto-Select mode, to save time while deleting pictures
System requirements:
- Pentium class processor
- 128 MB RAM