Using image segmentation in video compression brings about a limitation in
video quality when a segment moves in position from frame to frame. The limitation
arises because color contributions (bleeding or blurring) naturally occur between
neighboring segments. The above-identified problem is overcome by providing solutions
to compensate for color contributions between neighboring segments. In accordance
with one embodiment, a method and apparatus de-blurs an image segment. De-blurring
involves removing from the segment approximate color contributions from neighboring
segments. This results in a segment that is approximately independent of color
contributions from neighboring segments. In accordance with another embodiment,
a method and apparatus re-blurs an image segment. Re-blurring involves adding to
the segment approximate color contributions from a new arrangement of neighboring
segments. This results in more realistic rendering of the segment, as it is located
in the new arrangement.