The Lasso Tool creates freehand selections:
- To select an area In the Toolbox, select the Lasso
Tool,
click on the image and draw a contour holding mouse's button pressed* (or
simply draw if you use sylus). - To close the contour just release button if you draw with mouse or uplift stylus.
- While New selection
option
choosen on the Options bar by creating
new selection you delete existing one. - To add an area to existing selection you have either to choose Add
to selection
option
on the Options bar or to press (and hold) [Shift]
key while selecting. - To subtract an area from existing selection you have either to choose Subtract
from selection
option
on the Options bar or to press [Alt]
key while selecting.
- To intersect new selection with existing one either choose Intersect
with selection
option
on the Options bar or press [Shift+Alt]
keys while selecting. - While New selection option is chosen and the point of
cursor is within selected area the tool looks like this
and
can move selection (ie. borders of selected area and not image
content). - While New selection option is chosen you can also move
selection using keyboard
cursor
keys.
* I recommend to use stylus if available..
** On the animation above colors were inverted just to make selected area visible (it turns black).

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