A website describing and permitting the download of a Freeware program to combine multiple photographic images, selecting the best pixels from each. TuFuse can be used to combine a set of images with different exposures or different focus. It is an MS Windows command-line program.
If used for enhanced depth of field, there are no features for correcting magnification, skew or exposure differences.
The site also covers PTAssembler, a utility to create stitched images.
There are also links to websites of other developers of image manipulation freeware.