| 摘要 |
<p>Blemishes in the proximity of the perimeter of an image on a charge coupled device (CCD) are detected. The image pixels adjacent to the perimeter are sequentially detected and three consecutive pixels define a motion as either straight, clockwise or counterclockwise. The detection occurs in a clockwise direction and straight or clockwise motions are permitted. When two counterclockwise motions are detected, and a clockwise motion has not occurred between them, a blemish signal is provided.</p> |
