Snap is an easy to use interactive image cutout tool designed to extract
solid or opaque objects. Image cutout is the process of removing or
isolating an object in a picture.

The extracted object can then be combined with another image or individually
filtered in Adobe Photoshop or Photoshop Elements. The challenge becomes
defining which parts of the image are foreground, the portion to be cutout,
and those which belong to the background. Snap provides instant visual
feedback by snapping an editable curve to an object's boundary even if it
has vague or low contrast edges. This is made possible by utilizing unique
graph-cutting and segmentation algorithms. More accurate results are
achieved in a shorter amount of time than using existing tools and techniques.

For the most difficult of image cutouts, Snap also includes the ability to
manually create paths using an intuitive and easily editable shape format
called X-Splines. A path is an outline created by placing sequential points
along an object. Think of it as connecting the dots if you will. X-Splines
are designed to make user manipulations as intuitive as possible. The points
that make up X-Splines can be of three different types: Cardinal, Polygon or
B-Spline and can be changed before, after or during the creation of the
path. Manually drawing a path is often a good solution for objects that
can’t be extracted in any other way and using X-Splines is a vast
improvement over existing shape and path creation methods.