Wiki says – Photomatix Pro is photographic software developed by HDRsoft for Mac OS X and Microsoft Windows and primarily designed to make the process of merging multiple photographs into high dynamic range images and then locally tone-mapping them back to LDR images, easier and more streamlined. By automatically blending multiple exposures of photos it has the ability to create 32-bcv cv vc it images and tone mapped images. These different exposures are best taken as three different RAW files. However, in some circumstances you can use one file and process the different exposures from this photography.
Picked up this piece of software in order complete the HDR time-lapse video a few posts down. Seem to have it under control, even though a lot goes over my head. Pretty sure after Ive had a tinker with over the next few days Ill have it on lock down.