To expand a selection marquee from the center: If no selec-
tion exists, press Ctrl and drag the Marquee or Oval Marquee tool (on
Mac, press Ctrl after you begin dragging). You can press Ctrl+Shift
to constrain the selection marquee and expand it from the center.
To select single rows or columns
1
Select the Row Selection tool or the Column Selection tool. If
the paint object isnt in edit mode, click it.
2
Click a single pixel to select all pixels in the same row or column
in the image. A dashed border outlines the selected row or column.
Or, press and hold the mouse button to see a selection outline, and
move the pointer to position the selection outline. Release the mouse
button to set the selection, and a dashed border outlines the selected
row or column.
When working in high-resolution images, you can zoom to 400%
magnification or higher to see the pixels you want to select.
To select areas with the Lasso tools
1
Select either Lasso tool. If the paint object isnt in edit mode,
click it.
2
Drag in the image to outline a selection. Canvas connects the
starting and ending points with a straight line. A dashed border out-
lines the selected areas.
Lasso options
To set options before using the Lasso tools, double-click either Lasso
tool icon. In the dialog box, choose from the following options and
click OK.
Feather Radius
To soften the edge of selections made with the
Lasso tool, enter the feather range in pixels in the Feather Radius
box.
Anti-Aliased
To slightly soften the edge of selection made with the
Lasso tool, select the Anti-Aliased checkbox.
Omit Background Color
To keep pixels that match the current
background color from being selected by the Lasso tool, select the
Omit Background Color checkbox. This option can help you isolate
an image that is surrounded by a solid color background. Use the
Color Dropper tool to pick up the background color before you use
the Lasso tool to make the selection.
Lasso tools