4.12. Grow
The Grow command increases the size of a selection in the current image. It works in a similar way to the Shrink command, which reduces the size of a selection.
4.12.1. Activating the Command
You can access this command from the image menubar through Select → Grow.
4.12.2. Description of the “Grow Selection” dialog
图 16.37. The “Grow Selection” dialog window
Grow selection by
You can enter the amount by which to increase the selection in the text box. The default unit of measurement is pixels, but you can choose a different unit by using the drop-down menu.
4.12.3. A Peculiarity of Rectangular Selections
When you grow a rectangular selection, the resulting selection has rounded corners. The reason for this is shown in the image below:
图 16.38. Why growing a rectangular selection results in rounded corners
If you do not want rounded corners, you can use the Rounded Rectangle command with a 0% radius.