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Lesson 2. Working with Selections > Adding and subtracting selections

Adding and subtracting selections

Holding down Shift while you are selecting an area adds to the current selection. Holding down Alt (Windows) or Option (Mac OS) subtracts from the selection. Now you'll use these techniques with the lasso tool to perfect a rough selection of the mushroom image. The mushroom will become a hat for the melon face.

1.
Select the zoom tool (), and click twice on the mushroom to enlarge its view to 300%.

2.
Select the lasso tool (), and drag a rough outline around the mushroom (include some of the area outside the mushroom and some of the stem).

3.
Hold down Shift. A plus sign appears with the lasso tool pointer.

4.
Drag the lasso tool around an area you want to add to the selection. Then release the mouse button. The area is added to the current selection.


Initial selection



Adding to selection (Shift key depressed)



Result


Note

If you release the mouse button while drawing a selection with the lasso tool, the selection closes itself by drawing a straight line between the starting point and the point where you release the mouse. To create a more precise border, end the selection by crossing the starting point.

Next you'll remove, or subtract, part of the selection.

5.
Hold down Alt (Windows) or Option (Mac OS). A minus sign appears with the lasso tool pointer.

6.
Drag the lasso tool completely around an area you want to remove from the selection. Then repeat the process until you've finished removing all the unwanted parts of the selection.


Selection



Subtracting from selection (Alt/Option depressed)



Result


7.
Choose View > Fit on Screen.

8.
To move the mushroom hat onto the melon head, hold down Alt+Ctrl (Windows) or Option+Command (Mac OS), and drag a copy of the mushroom to the top of the melon.

9.
Choose File > Save.


PREVIEW

                                                                          

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