Adobe Photoshop CC 2014 v.14.xx User Manual
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Masked areas
Selected Areas
Spot Color
Color
You can create a new alpha channel and then use painting tools, editing tools, and filters to create a mask from the alpha channel. You can also
save an existing selection in a Photoshop image as an alpha channel that appears in the Channels panel. See
Book excerpt: Using the Masks panel
Create an alpha channel mask using current options
1. Click the New Channel button at the bottom of the Channels panel.
2. Paint on the new channel to mask out image areas.
Select areas of the image before you create the channel for the mask. Then paint on the channel to refine the mask.
Create an alpha channel mask and set options
1. Alt-click (Windows) or Option-click (Mac OS) the New Channel button at the bottom of the Channels panel, or choose New Channel from
the Channels panel menu.
2. Specify options in the New Channel dialog box.
3. Paint on the new channel to mask out image areas.
Channel options
To change options for an existing channel, double-click the channel thumbnail in the Channels panel or select Channel options from the Channels
panel menu.
Options available in the New Channel and Channel Options dialog boxes:
Sets masked areas to black (opaque) and selected areas to white (transparent). Painting with black increases the masked area;
painting with white increases the selected area. When this option is selected, the Quick Mask button in the toolbox becomes a white circle on a
gray background
.
Sets masked areas to white (transparent) and selected areas to black (opaque). Painting with white increases the masked area;
painting with black increases the selected area. When this option is selected, the Quick Mask button in the toolbox becomes a gray circle on a
white background
.
Converts an alpha channel to a spot color channel. Only available for existing channels.
Sets the color and opacity of the mask. Click the color field to change the color. The color and opacity settings affect only the appearance
of the mask and have no effect on how underlying areas are protected. Changing these settings may make the mask more easily visible against
the colors in the image.
Quickly fine-tune masks with one
consolidated set of options....
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