| 摘要 |
<p>An image processing method and apparatus in the form of a sampling mask that enables slight image variations to be absorbed and improves the accuracy of image matching based on a comparison of characteristic quantities such as by the template matching method. A multi-dimensional image is divided into regions that overlap each other. The pixels in each of the regions are weighted in accordance with a predetermined function whereby the weighting is largest at the center of a region and decreases as the distance from the center increases. The characteristic sums of the weighted pixel values are extracted as the mask output for absorbing local image variation. <IMAGE></p> |
