Erases both the center and edge margins of the original image.
Press [Edit / Color].
Press [Erase].
Press [Erase Center / Border].
Press [Erase Center / Border].
Press [Same Width].
Press [Center], and then specify the erase width with [] and [].
Press [Border], and then specify the erase width with [] and [].
Press [OK] twice.
To change the value you entered, press [] and [], and then specify a new value.