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ADOBE PHOTOSHOP ELEMENTS 9

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USING <strong>PHOTOSHOP</strong> <strong>ELEMENTS</strong> 9<br />

Using layers<br />

75<br />

Edit the layer masks<br />

A layer mask prevents sections of a layer, or an entire layer, from being visible. You use the mask to show or hide<br />

sections of an image or an effect. When the layer mask (right thumbnail) attached to an adjustment layer is completely<br />

white, the adjustment effect is applied to all underlying layers. If you don’t want to apply the effect to certain portions<br />

of the underlying layers, paint the corresponding area of the mask with black. When attached to a fill layer, the mask<br />

defines the filled-in area in the fill layer.<br />

Painting a mask with black increases the area protected.<br />

1 In the Edit workspace, select the adjustment or fill layer in the Layers panel.<br />

2 Select the Paintbrush tool, or any painting or editing tool.<br />

3 Use the following methods to view the layer mask:<br />

• To view only the mask, Alt-click (Option-click in Mac OS) the layer mask’s thumbnail (the rightmost thumbnail).<br />

Alt-click (Option-click in Mac OS) the thumbnail again to redisplay the other layers.<br />

• To view the mask in a red masking color, hold down Alt+Shift (Option+Shift in Mac OS) and click the layer mask’s<br />

thumbnail (the rightmost thumbnail). Hold down Alt+Shift (Option+Shift in Mac OS) and click the thumbnail<br />

again to turn off the red display.<br />

• To constrain editing to part of the mask, select the corresponding pixels.<br />

4 Edit the layer mask:<br />

• To remove areas of the adjustment effect or fill, paint the layer mask with black.<br />

• To add areas to the adjustment effect or fill, paint the layer mask with white.<br />

• To partially remove the adjustment effect or fill so that it shows in various levels of transparency, paint the layer<br />

mask with gray. (Single-click the foreground color swatch in the toolbox to choose a gray shade from the Swatches<br />

panel.) The extent to which the effect or fill is removed depends on the tones of gray you use to paint. Darker shades<br />

result in more transparency; lighter shades in more opacity.<br />

Shift-click the mask thumbnail (the layer’s rightmost thumbnail) in the Layers panel to turn off the mask; click the<br />

thumbnail again to turn on the mask.<br />

More Help topics<br />

“About selections” on page 89<br />

Last updated 1/27/2011

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