Adobe PHOTOSHOP 5.0 User Manual page 149

To set options for the lasso, polygon lasso, and
magnetic lasso tools:
If needed, double-click the tool to open its
1
Options palette.
Specify feather and anti-aliasing options, as
2
described in "Softening the edges of a selection" on
page 147.
For the magnetic lasso tool, set any of these
3
options:
To specify a detection width, enter a pixel value
•
between 1 and 40 for Lasso Width. The magnetic
lasso only detects edges within the specified
distance from the pointer.
To specify the rate at which the lasso sets
•
fastening points, enter a value between 0 and 100
for Frequency. A higher value anchors the
selection border in place more quickly.
To specify the lasso's sensitivity to edges in the
•
image, enter a value between 1% and 100% for
Edge Contrast. A higher value detects only edges
that contrast sharply with their surroundings; a
lower value detects lower-contrast edges.
On an image with well-defined edges, you can use
a greater lasso width and higher edge contrast and
trace the border roughly. On an image with softer
edges, try a smaller width and lower edge contrast
setting, and trace the border more precisely.
Use smaller width, higher value for edge contrast value for
most precise border. Use wider width, smaller value for edge
strength for rough path.
If you are working with a stylus tablet, select or
•
deselect the Stylus: Pressure option. When the
option is selected, an increase in stylus pressure
will cause the lasso width to narrow.
While creating a selection, you can press [
to decrease the magnetic lasso width by
1 pixel; press ] to increase the lasso width by
1 pixel.
Using the magic wand tool
The magic wand tool ( ) lets you select a consis-
tently colored area (for example, a red flower)
without having to trace its outline. You specify the
color range, or tolerance, for the magic wand tool's
selection.
Note: You cannot use the magic wand tool on an
image in Bitmap mode.
ADOBE PHOTOSHOP 5.0 141
User Guide