Adobe photoshop elements User Manual
CHAPTER 5
106
Selecting
7
Close the selection border:
•
To close the border with a freehand magnetic
segment, double-click, press Enter or Return, or
click anywhere outside the document window.
click anywhere outside the document window.
•
To close the border with a straight segment, hold
down Alt (Windows) or Option (Mac OS), and
double-click.
double-click.
•
To close the border, drag back over the starting
point and click.
•
To close the border, click anywhere outside the
active window.
Setting options for the lasso, polygonal
lasso, and magnetic lasso tools
lasso, and magnetic lasso tools
The lasso tool options let you customize how the
different lasso tools detect and select edges.
different lasso tools detect and select edges.
To set options for the lasso tools:
1
If needed, select the tool.
2
In the options bar, specify whether to create a
new selection ( ), add to an existing selection ( ),
subtract from a selection ( ), or select an area
intersected by other selections ( ).
subtract from a selection ( ), or select an area
intersected by other selections ( ).
3
Specify feather and anti-aliasing options.
4
For the magnetic lasso tool, set any of these
options:
•
To specify a detection width, enter a pixel value
between 1 and 40 for Width. The magnetic lasso
detects edges only within the specified distance
from the pointer.
detects edges only within the specified distance
from the pointer.
•
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.
Edge Contrast. A higher value detects only edges
that contrast sharply with their surroundings;
a lower value detects lower-contrast edges.
•
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.
for Frequency. A higher value anchors the
selection border in place more quickly.
On an image with well-defined edges, try a higher
width and higher edge contrast, and trace the
border roughly. On an image with softer edges,
try a lower width and lower edge contrast,
and trace the border more precisely.
width and higher edge contrast, and trace the
border roughly. On an image with softer edges,
try a lower width and lower edge contrast,
and trace the border more precisely.
•
To change the lasso cursor to indicate the lasso
Width value in the options bar, press the Caps
Lock key on the keyboard. Change the cursor
while the tool is selected but not in use.
Lock key on the keyboard. Change the cursor
while the tool is selected but not in use.
•
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 edge width to decrease.
option is selected, an increase in stylus pressure
will cause the edge width to decrease.
While creating a selection, you can press ] to
increase the magnetic lasso edge width by
increase the magnetic lasso edge width by
1 pixel; press [ to decrease the width by 1 pixel.
Using the magic wand tool
The magic wand tool lets you select a consistently
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.
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.
image in Bitmap mode.