Graphics Programs Reference
In-Depth Information
6.
Masks and Channels
Lesson overview
In this lesson, you'll learn how to do the following:
•
Create a mask to remove a subject from a background.
•
Refine a mask to include complex edges.
•
Create a quick mask to make changes to a selected area.
•
Edit a mask using the Properties panel.
•
Manipulate an image using Puppet Warp.
•
Save a selection as an alpha channel.
•
View a mask using the Channels panel.
•
Load a channel as a selection.
•
Isolate a channel to make specific image changes.
This lesson will take about an hour to complete. Download the
Lesson06 project files from the Lesson & Update Files tab on your
Account page at
www.peachpit.com
,
if you haven't already done so.
As you work on this lesson, you'll preserve the start files. If you
need to restore the start files, download them from your Account
page.