User Guide

Chapter 5: Painting And Image Editing
selected by the Lasso tool, select the Omit Color check box and then
choose Background Color. Select Click Point to omit the color where
you first click with the Lasso tool.
Modifying selections
After you make a selection using any selection technique, you can use modifier keys to alter the
selection with the Marquee, Oval Marquee, Row Selection, Column Selection, and Lasso tools.
To add to a selection:
Press Shift when you use a selection tool. A “+” symbol indicates that the tool will add the new
selection to the existing selection.
To subtract from a selection:
Press Ctrl when you use a selection tool. A “-” symbol indicates that the tool will subtract the new
selection from the existing selection.
To select part of a selection:
Press Shift+Ctrl when you use a selection tool. An “x” symbol indicates that the area you select in
the existing selection will remain selected. If none of the new selection is part of the existing
selection, Canvas deselects all pixels.
You can also use Shift or Ctrl to constrain a selection when you add, subtract, or intersect a selection.
To do this, press the keys to add, subtract, or intersect and begin dragging. While still pressing the
mouse button, release the keys and then press the constraint keys and continue dragging.
Selecting areas based on color
You can use the Wand tool and the Color Range command to select pixels in an image according to
color.
To select a contiguous area of similarly colored pixels:
Use the Wand tool.
To select all pixels of a particular color:
Use the Color Range command.
487