All about HDR

What is HDR?
high dynamic range imaging (HDRI or just HDR) is a set of techniques that allow a greater dynamic range of luminicans between the lightest and darkest areas of an image than standard digital imaging techniques or photographic methods. This wider dynamic range allows HDR images to represent more accurately the wide range of intensity levels found in real scenes ranging from direct sunlight to faint starlight.

I have download a HDR program and test around with it. The two picture shown above was my first edit using HDR.