High Dynamic Range photography is a process that combines elements from several images and produces a single picture that has increased detail in both the shadows and highlights. I was impressed by a picture that someone else took, and asked him about it. He told me how he did it, and I have been investigating the process.
In some cases, the resulting picture is not too different from a regular one, it just has more detail. The picture above was generated from a picture I took of Galveston Bay a couple weeks ago. It looks pretty much like a normal picture, only a little more detail and more vibrant.
By modifying some of the parameters of the photograph, the resulting image has a somewhat more abstract or artistic characteristic. This picture has some characteristics that make it look more like a painting.