There is disclosed an apparatus for performing segmentation-based enhancements
of a video image. The apparatus comprises: 1) an input buffer for storing video
frames of an incoming video signal; 2) a segmentation controller capable of segmenting
a first stored frame into a plurality of segments, each of the plurality of segments
comprising a plurality of pixels having at least one common property; 3) an image
processor capable of calculating a probability function associated with at least
one pixel in the first stored frame, the probability function indicating a probability
that the at least one pixel belongs within a first selected one of the plurality
of segments; and 4) an enhancement controller capable of enhancing a parameter
of the at least one pixel as a function of the probability function of the at least
one pixel.