Free image similarity software for windows

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.

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