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The Refine Edge option improves the quality
of selection edges, letting you extract objects with ease. You can
also use Refine Edge options to refine a layer mask. (See Adjust mask opacity or edges.)
Create a selection with any selection tool.
Click Refine Edge in the options bar, or choose Select >
Refine Edge. Then set the following options:
- View Mode
- From the pop-up menu, choose a mode to change how the selection
is displayed. For information about each mode, hover the pointer over
it until a tool tip appears. Show Original displays the original
selection for comparison. Show Radius displays the selection border
where edge refinement occurs.
- Refine Radius
and
Erase Refinements tools
- Let you precisely adjust the border area in which edge refinement
occurs. To quickly toggle from one tool to the other, press Shift+E.
To change the brush size, press the bracket keys.
 Brush
over soft areas such as hair or fur to add fine details to the selection. - Smart Radius
- Automatically adjusts the radius for hard and soft edges
found in the border region. Deselect this option if the border is
uniformly hard- or soft-edged, or if you want to control the Radius
setting and refinement brushes more precisely.
- Radius
- Determines the size of the selection border in which edge
refinement occurs. Use a small radius for sharp edges, and a large
one for softer edges.
- Smooth
- Reduces irregular areas (“hills and valleys”) in the selection
border to create a smoother outline.
- Feather
- Blurs the transition between the selection and surrounding
pixels.
- Contrast
- When increased, soft-edged transitions along the selection
border become more abrupt. Typically, the Smart Radius option and
refinement tools are more effective.
- Shift Edge
- Moves soft-edged borders inward with negative values or outward
with positive ones. Shifting these borders inward can help remove unwanted
background colors from selection edges.
- Decontaminate Colors
- Replaces color fringes with the color of fully selected pixels
nearby. The strength of color replacement is proportionate to the softness
of selection edges.
Important: Because this option
changes pixel color, it requires output to a new layer or document.
Retain the original layer so you can revert back to it if needed. (To
easily see changes in pixel color, choose Reveal Layer for the View
Mode.)
- Amount
- Changes the level of decontamination and fringe replacement.
- Output To
- Determines whether the refined selection becomes a selection
or mask on the current layer, or produces a new layer or document.
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