Ulead VIDEOGRAPHICS LAB Manual page 39

VIDEO PAINT: CHAPTER TWO 35
object against a dull background. (If you find the selection "pulls" to
include unwanted areas, deselect the AutoSnap option or decrease the
sensitivity.)
Note: If you make a mistake while drawing a selection area or wish to start again,
press the [ ] key.
ESC
Creating an irregular selection area
Selecting an area containing similar colors
The Magic Wand tool is useful when you want to select specific colors in
an image. When you click on an image, any colors that fall within the
values specified in the Similarity entry box are included in the selection
area. This is an effective way to select large solid colored portions of an
image, such as a blue screen or patches of skin and clothing.
When you use the Magic Wand tool, it operates in one of two modes,
Sample by Path or Sample by Area. In Sample by Path mode, dragging
your mouse over an image creates a line that calculates the largest and
smallest color values of the pixels under the line (any values entered in the
Similarity spin box are also included). Releasing your mouse then creates
the selection based on that range. Sample by Area mode works in much
the same way except that instead of taking the values of pixels under a line
it includes all pixels within a selected area. This mode works best for
irregular areas containing similar colors, such as backgrounds and gradi-
ents.