Novell LINUX ENTERPRISE DESKTOP 10 SP2 - GNOME 08-05-2008 Manual page 260

Ellipse Select
Use this to select elliptical or circular areas. The same options are available as with
rectangular selection. Holding Shift during selection produces a circle.
Free Select (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 connected with a straight
line when you release the tool. The area inside is then selected.
Fuzzy Select (Magic Wand)
This tools selects a continuous region based on color similarities. Set the maximum
difference between colors in the tool options dialog in Threshold.
By Color Select
With this, select all the pixels in the image with the same or similar color as the
clicked pixel. The maximum difference between colors can be set in the tool options
dialog in Threshold.
Intelligent Scissors
Click a series of points in the image. As you click, the points are connected based
on color differences. Click on the first point to close the area. Convert it to a regular
selection by clicking inside it.
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.
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 selects the painted
pixels. Painting with black deselects pixels. Shades of gray (colors are treated as shades
of gray) are a partial selection. Partial selection allows smooth transitions between se-
lected and unselected areas.
To use a different color for displaying the quick mask, right-click the quick mask button
then select Configure Color and Opacity from the menu. Click the colored box in the
dialog that opens to select a new color.
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