Complex sentence: HDR images can represent more accurately the range of intensity levels found in real scenes, from direct sunlight to faint starlight, and is often captured by way of a plurality of differently exposed pictures of the same subject matter.
Split into simpler sentences: HDR images can represent a greater range of intensity levels found in real-world scenes, from direct sunlight to faint nebula. It is often captured by way of a plurality of differently exposed pictures of the same subject matter.