High Dynamic Range , an example from the OP3 camera

The same picture (ok, a few seconds difference could not be avoided ;-).
First WITHOUT HDR activated... HDR comparison

And again WITH activated HDR option: HDR comparison

The Wikipedia article explains quite well how it works. And has more impressive examples as well.

The OP3 camera is quite overwhelmed, as can be seen with the bush left of the half covered sun. The bright flecks are not blossoms but coding artefacts.

If you did not realise it yet: the original picture hides behind a click onto the image shown.