Curve edition system, curve-loop detecting system, curve-loop removing system

摘要

Two curves indicating the border of an object in an image are simply edited and loops formed owing to edition of the curves indicating the border of an object in an image are detected and removed. A curve edition apparatus according to the present invention incorporates: converting units for converting two curves indicating positions of inner and outer boundaries of a border of an object included in an image to produce a dot sequence for each curve; a changing unit for changing the coordinates of each point by linking the dot sequence of each curve produced by the converting units; and restructuring units for restructuring the two curves from the coordinates of each point having the coordinates changed by the changing unit. Another aspect incorporates an edition unit for editing the shape of a boundary curve indicating the shape of a border of an object included in an image and formed by a plurality of segments; a first detecting unit for detecting, for each segment, a loop formed owing to an edition process performed by the edition unit; a second detecting unit for detecting a loop formed by a plurality of segments; and loop removing units for removing the loops detected by the first detecting unit and the second detecting unit.