| 摘要 |
The conventional image retrieving method is not satisfactory in accuracy and speed of retrieval. There has been a demand for a method capable of rapidly retrieving images. The present invention achieves rapid image retrieval by acquiring the data of an original image and the data of an image for retrieval, setting up the matching pixels at more than one position in the original image and acquiring the gray levels of said matching pixels, setting up a region of the same size as said original image on said image for retrieval, acquiring the gray levels of the comparison pixels corresponding to the same position as said matching pixels in said region, computing the matching value which indicates similarity between the gray level of said matching pixel and the gray level of the comparison pixel, and computing similarity between the gray level of almost all pixels in said region for the region in which said matching value indicates high similarity and the gray level of almost all pixels in said original image, thereby extracting a region with high similarity. <IMAGE> |
