How to Use Luminosity Masks for Landscape and Cityscape Image Editing
Luminosity masks are a fantastic way to make precise selections based on luminance values (hence the name). As with all things Photoshop, there are multiple ways to achieve the same result. I find using channel selections to be the easiest way to manually create my masks. I realize I'm probably preaching to the choir, but for those yet to join in on the singing, I hope you find this information useful as you continue to build your editing tool set.