EasyHDR is an image processing software that produces and tonemapps High Dynamic Range images from photo sequences taken with a normal digital camera. EasyHDR can also tone map already created HDR images saved in Radiance RGBE (*.hdr) format or 48-bit and even 96-bit TIFF. You can also process RAW images from your camera by loading them directly into the program. Another great feature is single Low Dynamic Range (LDR) photo enhancement.
High Dynamic Range image covers much wider dynamic range (light to dark ratio) than a normal digital camera can record (due to noise and overexposure). A HDR image is created by blending an image sequence of photos taken at different exposure values (various exposure times or ISO sensitivity). Each photo in the sequence shall cover a part of the dynamic range of the photographed scene. The resulting HDRi will therefore contain the full information from all of the photos.