Picturenaut

Picturenaut's consistent multi-threaded architecture makes it the fastest tone mapper in the world. Nothing beats it running Reinhard's Photoreceptor Physiology in realtime on the full image. If you call a new 8 core box your own, you will see it haul through a 32 Megapixel image in realtime, while you find just the right slider settings.

Picturenaut was born in the German photo community. It has been in the works for four years, with consistent improvements according to user feedback. It has always been freeware, thus setting the standard for making high quality HDR Imaging accessible and easy.