| 摘要 |
PROBLEM TO BE SOLVED: To stably detect a figure to be detected from an input image.SOLUTION: A figure detection processing device is equipped with: means for setting a mask having a first region and a second region, which are predetermined corresponding to a figure to be detected, for a target pixel of an image; means for obtaining a first probability distribution which is a probability distribution of image feature quantity in the first region and a second probability distribution which is a probability distribution of image feature quantity in the second region, while moving the target pixel; means for, based on the first probability distribution and the second probability distribution, obtaining a separation level index indicating a difference level between the two probability distributions, and a self-similarity level index indicating a self-similarity level of the probability distribution in the first region and the second region, and calculating a figure index indicating likelihood of a figure to be detected from the separation level index and the self-similarity level index; and means for determining whether or not a figure positioned on the target pixel is a figure to be detected, by performing threshold value processing on the figure index. |
