Channel palette pop-up menu
The following commands appear in the Channel palettes pop-up
menu.
Palette Options
Lets you select the channel preview size.
New Channel
Creates a new alpha channel and lets you select
channel options.
Duplicate Channel
Creates a new alpha channel from a single
active color or alpha channel. This command isnt available if a com-
posite channel or more than one channel is active.
Delete Channel
Deletes the active alpha channel. You cant delete
color channels or a composite channel.
Channel Options
Lets you specify options for the active channel.
You can change the name, mask tint color, and opacity of an alpha
channel. You also can double-click a channel to set options for it.
Working with alpha channels
To add to the current selection, Shift-drag a channel to the button.
To subtract from the current selection, Command-drag (Mac) or Ctrl-
drag (Windows) a channel to the button.
To select the intersection of a channel and the current selection, press
Command+Shift (Mac) or Ctrl+Shift (Windows) and drag a channel
to the button.
Alpha channel; white
indicates selected area
Alpha channel loaded
as selection (in color)
Applied blend affects
selected area only
Original image