1. A region extraction apparatus for extracting a desired region from a moving image, comprising: region specifying means for specifying contour points of a region which is to be extracted; template creating means for creating a template of the region which is to be extracted based on the contour points of the region specified by said region specifying means; template matching means for matching the template created by said template creating means and said moving image; and template correcting means for correcting the template depending on a matching result obtained by said template matching means.