Essentially, Luminosity masking allows us to create selections of different areas of brightness. In our coastal scene here, it means we can target the bright areas of sky around the sun, or the dark groynes in the foreground, then enhance those areas with adjustments. There are several plug-ins that make Luminosity masks, but to understand how they work, it helps to know how to create your own. We can do so by using simple selection shortcuts in combination
