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Thunder Over Louisville 2008 : Rated as one of the top 100 events in North America, the Derby Festival’s Opening Ceremonies is truly a sight to behold. And each year, more than 500,000 eager thrill-seekers do just that. The day-long event kicks off the two exciting weeks of events that are part of the annual Kentucky Derby Festival. The Thunder Air Show dazzles the crowd with more than 100 planes, aerobatics teams, daring sky diving teams and breathtaking stunts. When it gets dark, the Thunder rolls. The fireworks will feature the latest in pyrotechnic power from Zambelli Internationale, America's "first family of fireworks". Eight 400-foot barges assemble on both sides of the 2nd Street Bridge to form the stage from which the fireworks spectacular ignites. The breathtaking and mind-numbing 28-minute show includes Thunder’s signature one-mile “waterfall” effect off the bridge, making the fireworks seem to rain down forever. And in the crowd’s memory of the show, it does! After more than a decade, the show remains the largest annual pyrotechnic display in North America. Seen by millions worldwide via a July 4th rebroadcast on the Armed Forces Network to more than 150 countries, it is the state’s pride. A Discovery Channel documentary on fireworks shows says it best, “Thunder is the Grand-daddy of them all!”.

Thunder Over Louisville 2008

High Dynamic Range Imaging : In computer graphics and photography, high dynamic range imaging (HDRI) is a set of techniques that allows a greater dynamic range of exposures (the range of values between light and dark areas) than normal digital imaging techniques. The intention of HDRI is to accurately represent the wide range of intensity levels found in real scenes ranging from direct sunlight to shadows. HDRI was originally developed for use with purely computer-generated images. Later, methods were developed to produce a high dynamic range image from a set of photographs taken with a range of exposures. With the rising popularity of digital cameras and easy-to-use desktop software, the term "HDR" is now popularly used to refer to the process of tone mapping together with bracketed exposures of normal digital images, giving the end result a high, often exaggerated dynamic range. This composite technique is different from, and generally of lower quality than, the production of an image from a single exposure of a sensor that has a native high dynamic range. Tone mapping is also used to display HDR images on devices with a low native dynamic range, such as a computer screen.

High Dynamic Range Imaging

In computer graphics and photography, high dynamic range imaging (HDRI ...

Updated: May 06, 2008 4:33pm PST