Page 59 - Adobe Photoshop 2021
P. 59
16. Expand the Output Settings in the Properties panel and
choose the Layer Mask option in the Output To menu.
You might need to scroll down in the Properties panel to find the
Output menu, or you can collapse the Edge Detection and Global
Refinements sections to show those options without scrolling.
This menu can be used to create a new layer or file (with or
without a mask) from the selection. You want to mask the existing
layer, so you are using the Layer Mask option. Note:
17. Click OK to accept your refined selection. Decontaminate
Colors can be checked
When you pasted the feathered selection from the original Lightning.jpg file, you
pasted only the pixels inside the selection area; unselected pixels from the original to remove a certain
image are not a part of the composite file. percentage of color from
the edge of a selection.
Rather than actually excluding or deleting pixels, a layer mask hides unwanted pixels.
The mask you just created is a raster-based pixel mask. Unselected (masked) areas are
hidden but not deleted, so you can later edit the mask to change the visible part of
the image. This is a non-destructive way to hide certain elements of a layer without Note:
permanently deleting pixels. You can edit or disable the layer mask at any time.
A layer mask is basically
an Alpha channel that
is connected to a specific
layer.
The resulting layer
mask hides areas that
were not selected.
18. Control/right-click the mask thumbnail and choose Disable Layer Mask
from the contextual menu.
When you disable the mask, the background pixels are again visible. This is one advan-
tage of using masks — masked pixels are not removed, they are simply hidden.
When the mask is
disabled, masked
pixels are visible.
A red X indicates
that the mask is
disabled.
Control/right-click the
thumbnail to open the
mask’s contextual menu.
Project 1: Music CD Artwork 71

