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Using the Select Tools
The main select tools are rather easy to use. The paths tool, which can also be
used for more than selecting, is more complicated so is not described here. In the
tool options for the other select tools, determine whether the selection should re-
place, be added to, be subtracted from, or intersect with an existing selection.
used for more than selecting, is more complicated so is not described here. In the
tool options for the other select tools, determine whether the selection should re-
place, be added to, be subtracted from, or intersect with an existing selection.
Rectangular Select
This tool can be used to select rectangular or square areas. In
the tool options, select among ‘Free Select’, ‘Fixed Size’, and ‘Fixed Aspect
Ratio’ to control the shape and size of the selection.
Ratio’ to control the shape and size of the selection.
Elliptical Select
Use this to select elliptical or circular areas. The same options
are available as with rectangular selection.
Lasso
Draw a selection area freehand with this tool by dragging the mouse over
the image with the left mouse button pressed. The end points will be con-
nected with a straight line when you release the tool. The area inside is then
selected.
nected with a straight line when you release the tool. The area inside is then
selected.
Magic Wand
This tools selects a region based on color similarities.
By Color
With this, select all the pixels in the image with the same color as the
clicked pixel.
Intelligent Scissors
Click a series of points in the image. As you click, the points
are connected based on color differences.
Using the Quick Mask
The quick mask is a way of selecting parts of an image using the paint tools. A
good way to use it is to make a rough selection using the intelligent scissors or
the lasso (freehand selection tool). Then activate the quick mask by pressing the
small icon with the dashed box in the lower left corner.
good way to use it is to make a rough selection using the intelligent scissors or
the lasso (freehand selection tool). Then activate the quick mask by pressing the
small icon with the dashed box in the lower left corner.
The quick mask displays the selection using an overlay of red. Areas shaded with
red are not selected. Areas appearing as they did before the mask was activated
are selected. To modify the selection, use the paint tools. Painting with white se-
lects the painted pixels. Painting with black unselects pixels. Shades of gray (col-
ors are treated as shades of gray) are a partial selection. Partial selection allows
smooth transitions between selected and unselected areas.
red are not selected. Areas appearing as they did before the mask was activated
are selected. To modify the selection, use the paint tools. Painting with white se-
lects the painted pixels. Painting with black unselects pixels. Shades of gray (col-
ors are treated as shades of gray) are a partial selection. Partial selection allows
smooth transitions between selected and unselected areas.
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20.5. Editing Images: Basics