Qtpfsgui is an HDR imaging tool.  It creates an HDR file from a set 
of images (JPEG, TIFF 8 and 16 bit, RAW) of the same scene taken at 
different exposure settings.  You can save and load HDR images, 
rotate and resize them, tonemap your images, and copy your EXIF data.

Qtpfsgui requires qt4, exiv2, fftw, openexr, and ilmbase, all of which 
are available at SlackBuilds.org.