| 摘要 |
<P>PROBLEM TO BE SOLVED: To highly accurately extract contours of a prescribed object from an image including the object. <P>SOLUTION: The edge extraction device is provided with a direction estimation part 103 for estimating the direction of an edge close to a notable pixel A, a filter selection part 106 for selecting an edge strength evaluation filter for evaluating the strength of the edge whose direction is estimated by the direction estimation part 103 using the edge filter selected by the filter selection part, a folding processing part 107 for applying folding processing to the notable pixel A, an area setting part 104 for setting a prescribed area including the noticed pixel A as an edge emphasis area EA, and an edge sharpening part 105 for applying edge sharpening processing to the edge emphasis area EA. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
