Adobe PHOTOSHOP 5.0 User Manual page 150

142 CHAPTER 7
Selecting
To use the magic wand tool:
Double-click the magic wand tool to display its
1
Options palette.
For Tolerance, enter a value in pixels, ranging
2
from 0 to 255. Enter a low value to select colors
very similar to the pixel you click or a higher value
to select a broader range of colors.
High tolerance detects shadow; lower tolerance detects only
the key
To define a smooth edge, select Anti-aliased.
3
(See "Softening the edges of a selection" on
page 147.)
To select colors using data from all the visible
4
layers, select Use All Layers. Otherwise, the magic
wand tool selects colors from the active layer only.
5 In the image, click the color you want to select.
All adjacent pixels within the tolerance range are
selected.
Using the Color Range command
The Color Range command selects a specified
color or color subset within an existing selection
or an entire image. If you want to replace a
selection, be sure to deselect everything before
applying this command.
To refine an existing selection, use the Color Range
command repeatedly to select a subset of colors.
For example, to select the green areas in a cyan
selection, select Cyans in the Color Range dialog
box, and click OK. Then reopen the Color Range
dialog box, and select Greens. (The results are
subtle because the technique selects parts of colors
within a color mix.)
To select a color range using sampled colors:
1 Choose Select > Color Range.
2 For Select, choose Sampled Colors.
Select one of the following options listed below
3
the preview box:
Selection to preview only the selection as you
•
build it.
Image to preview the entire image. For example,
•
you might want to sample from a part of the image
that isn't on-screen.
To toggle between the Image and Selection
previews in the Color Range dialog box,
press Ctrl (Windows) or Command (Mac OS).