Luminance HDR is a complete suite for HDR imaging workflow. It provides a wide range of functionalities, both during the fusion and the tonemapping stage. Its graphical user interface, based on Qt4, runs on a multitude of platform, like Microsoft Windows (32 and 64 bit), Mac OS X 10.6 and above and several Linux distribution.
Input images can be supplied in multiple formats, from JPEG to RAW files. In the same way, output can be saved in many different formats as well, from JPEG to TIFF (both 8 bit and 16 bit per channel), enabling all the power of your post processing tools.
Luminance HDR Web Site : http://goo.gl/KXR4p