Lightroom has a little tool called Automask that lives inside the Adjustment Brush. It’s intended to help photographers by making their retouching jobs easier, automatically creating a virtual mask that limits adjustments to an automatically selected area.
How do I use auto mask in Lightroom Classic?
By using the Adjustment Brush Auto Mask feature, I can do exactly that. To do this process on your own, navigate to the Adjustment Brush panel, select a preset or move the sliders to your own liking, adjust the size of the brush, and then tick Auto Mask.
What is Lightroom vs Lightroom Classic?
The primary difference to understand is that Lightroom Classic is a desktop based application and Lightroom (old name: Lightroom CC) is an integrated cloud based application suite. Lightroom is available on mobile, desktop and as a web-based version. Lightroom stores your images in the cloud.