| http://www.w3.org/ns/prov#value | - In this case, as shown in FIG. 13, the hair region is extracted by approximation using an elliptic arc inscribing the outline of the specified region Ru as an upper outline of the hair region if the operator specifies the region Ru as a region whose outline is a rectangle that approximately circumscribes the face and hair of the person in the human image In.
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