1. Digital Imaging
Unit 6: Special Layer Functions
Module 1: Working with Layer Masks
Special Layer Functions
Layer masks let you selectively
modify the opacity
(transparency) of a layer.
This differs from the use of the
opacity slider in that the layer
mask selectively modifies part of
the layer rather than the entire
layer.

2. Digital Imaging
Unit 6: Special Layer Functions
Module 1: Working with Layer Masks
Special Layer Functions
To add a layer mask, first select
the layer you wish to mask in the
Layers palette.
Under the layer menu, choose
layer Mask > Reveal all.
When done, a mask appears
next to the thumbnail of the
layer in the layers palette.

3. Digital Imaging
Unit 6: Special Layer Functions
Module 1: Working with Layer Masks
Special Layer Functions
Select the mask in the layer.
Next, select a paintbrush and a
brush from the brushes palette.
Make sure the foreground color
is set to black.
Begin “painting” in the mask to
create a layer mask and reveal
the layer below.

4. Digital Imaging
Unit 6: Special Layer Functions
Module 1: Working with Layer Masks
Special Layer Functions
When you are happy with the layer mask, go under the Layer
Menu > Layer Mask > Apply to combine the mask and the layer.

5. Digital Imaging
Unit 6: Special Layer Functions
Module 1: Working with Layer Masks