12 October 2006

Link of the day: High dynamic range photography

Cameras have a very limited dynamic range compared to the real world. This means that even though an object illuminated in sunlight might have a wide range of brightness, the camera has much rougher palette of brightness. This makes it hard to see details especially when two objects are illuminated with different intensities (a person standing next to a bright LED sign). The technique of maximizing the dynamic range in photos is called HDR (high dynamic range). With the advent of digital cameras, people have developed new ways to achieve HDR photos. I found a really informative introduction to digital HDR here. Wikipedia also has some information on the subject. Here is a tutorial on HDR which I found via Lifehacker.

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