How to Use a luminosity mask in Photoshop

This video is about using a luminosity mask in Photoshop. The luminosity mask is used to enhance the color and contrast in photos that lack each of these. The color is enhanced or punched up. Choose the manipulation tool: channel and RGB. To choose RGB, touch control and then select RGB. Select the 100 % white or light parts of the photo, it will not select the darker or black images. Copy the light parts of the image by using control J. Choose to copy the lightest parts by selecting overlay and layer one. It will accentuate the clouds, mist and lake.