Lasso
The lasso tool
is similar to the "marquee" tool, however, the user can make a custom
selection by drawing it freehand.[25] There are three options for the "lasso" tool
– regular, polygonal, and magnetic. The regular "lasso" tool allows
the user to have drawing capabilities. Photoshop will complete the selection
once the mouse button is released. The user may also complete the selection by
connecting the end point to the starting point. The "marching ants"
will indicate if a selection has been made. The "polygonal lasso"
tool will draw only straight lines, which makes it an ideal choice for images
with many straight lines. Unlike the regular "lasso" tool, the user
must continually click around the image to outline the shape. To complete the
selection, the user must connect the end point to the starting point just like
the regular lasso tool. "Magnetic lasso" tool is considered the smart
tool. It can do the same as the other two, but it can also detect the edges of
an image once the user selects a starting point. It detects by examining the
color pixels as the cursor move over the desired area. A pixel is the smallest
element in an image. Closing the selection is the same as the other two, which
should also should display the "marching ants" once the selection has
been closed.[31]
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