Apple Aperture 3.5 - Manual (Page 236)

Chapter 7 Make image adjustments 236
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On Black: Displays a pure black mask over the image, with the brush strokes revealing the
image beneath. This option is useful for showing detailed brush strokes over a bright area in
the image.
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On White: Displays a pure white mask over the image, with brush strokes revealing the image
beneath. This option is useful for detailed brush strokes over dark areas in the image.
Apply an overlay for a brushed adjustment to an image
1 Select the photo with the brushed adjustment whose brush strokes you want to identify.
2 Select the brushed adjustment in the Adjustments inspector or the Adjustments pane of the
Inspector HUD, and click the Brush button in the adjustment controls.
Click the Brush button.
3 In the Brush HUD, choose an overlay option from the Overlay section of the Brush Action
pop-up menu.
Choose an overlay from
the Overlay section
of the Brush Action
pop-up menu.
To turn an overlay off, choose None from the Overlay section of the Brush Action pop-up menu.
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