There is ample description of the HDR software on the web site: Aurora HDR 2018 I do not need to repeat it here.

For those who are keen on the HDR look this is a useful software tool as it allows you to create that look from one image as well as from (more normally) multiple images having slightly different exposures.

I use it in both modes whenever I want an HDR image.

HDR image created from multiple images in

Aurora HDR 2018.

Burbage Brook, Derbyshire, UK.

Pseudo HDR image created from a single image in Aurora HDR 2018 (Realistic mode).

Burbage Brook, Derbyshire, UK.