Refining pixel selection edges
Once a selection has been created, you can refine its edges to ensure your selection is as accurate as needed.
For very fine selection, e.g. of hair against a coloured background, use an adjustment brush as part of the refinement to 'brush-in' fine detail.
Settings
The following settings can be adjusted from the dialog:
- Preview—sets the way your selection and page display. Select from the pop-up menu.
- Matte Edges—when selected (default), the selection area closely follows image edges. If this option is off, selection doesn't follow image edges which is useful for more accurately refining straight selection edges.
- Border width—expands the selection by adjusting the width of its border. Drag the slider to set the value.
- Smooth—determines the curvature of the selection's edge. Drag the slider to set the value.
- Feather—determines the softness (opacity) of the transition at the edge of the selection. Drag the slider to set the value.
- Ramp—changes the size of the selection. Drag the slider to set the value. Negative values will shrink the selection while positive values enlarge it.
- Adjustment brush—determines the adjustment brush's refinement mode.
- Matte—re-analyses the selection and attempts to separate foreground detail from the background. Great for selecting hair at the edges of photos, etc.
- Foreground—adds to the selection (revealing more of the foreground).
- Background—deletes from the selection (revealing more of the background).
- Feather—softens the alpha edge of the selection.
- Width—sets the width of the brush tip. Type directly in the text box or drag the pop-up slider to set the value.
- Output—determines how the selection is applied upon exiting the dialog. Select from the pop-up menu.
To refine pixel selection edges:
- With a selection in place, from the Select menu, select Refine Edges.
- Adjust the settings in the dialog.
- If you wish to adjust the selection edges by painting, drag on the preview.
- Click Apply.