Image matting tool cuts out objects in photos
using an alpha-matting technique. While clear cuts
can be found for all objects that are clearly
separated from their environment, objects with
fuzzy borders and semi-transparent areas don't
have a clear outline. The tool creates an alpha
channel that defines the degree to which the
background shines through the foreground for every
pixel. The background color can then be
subtracted. The user defines a rough boundary of
an object with a large brush and a high-quality
segmentation is generated. Problematic areas can
be edited manually.
