High Dynamic Range Imaging: A Gentle Introduction April 8, 2009

High dynamic range imaging (HDRI) can be thought of as a set of tools and techniques that allow images and video to be captured, stored, manipulated, and displayed in its full glory, i.e., without the usual concerns for quantisation and over- and under-exposure. Conceptually, HDRI stores pixels as floating point numbers rather than bytes. Although this difference might appear trivial at first glance, it brings both significant challenges and substantial benefits. In this presentation, HDRI will be introduced, and some of its strengths and current weaknesses will be outlined. Topics include capture and display, as well as some assessment of the practical differences between conventional and high dynamic range images.

Speaker: Erik Reinhard