METHOD FOR EXTRACTING PERSON CANDIDATE AREA IN IMAGE, PERSON CANDIDATE AREA EXTRACTION SYSTEM, PERSON CANDIDATE AREA EXTRACTION PROGRAM, METHOD FOR JUDGING TOP AND BOTTOM OF PERSON IMAGE, SYSTEM FOR JUDGING TOP AND BOTTOM, AND PROGRAM FOR JUDGING TOP AND BOTTOM

摘要

The top-bottom direction of a picture image containing a human image'are discerned. Based on the result of the discernment, the human image is modified to the actual top-bottom direction. Then, the dispersion values of image-characterizing amounts are found about vertical and horizontal lines consisting of vertical and horizontal rows of pixels constituting the picture image. Regions having dispersion values of image-characterizing amounts in excess of their threshold values are selected about the vertical and horizontal line directions. An area within the picture image in which the selected regions in the line directions overlap with each other is extracted. Thus, an area within the picture image in which the human image exists can be extracted robustly and quickly.