From wiki:

High-dynamic-range imaging (HDRI or HDR) is a technique used in imaging and photography to reproduce a greater dynamic range of luminosity than is possible with standard digital imaging or photographic techniques.

 

The software that is used to create HDR pictures can also be used to add a "paint" effect to the photos.

The first photo below is HDR, we can see that the outside windows are not totally white, but without any special effect.

Artistic HDR photo :