| 摘要 |
In a character string extraction method, a character portion, a rim portion, a character frame, and a character string frame are set, a feature value of each image in the character portion and the rim portion is calculated for each character frame, a character string frame evaluation value is calculated based on the feature value for the character string frame, a position of the character string frame is moved on the paper sheet image, and the image in the character portion is extracted by using the character string frame at a position at which the character string frame evaluation value reaches a maximum. |
