| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily determine presence of a security thread in a short time so as to process a number of media in a short time by determining the presence of the security thread without correcting the inclination of an image of the medium. <P>SOLUTION: This security thread recognition apparatus includes an image acquisition part 12 for acquiring an image of the medium and an image processing part 13 that determines the presence of the security thread by cutting out an area that includes the security thread from the image of the medium, calculating the characteristic value of the area of the image, based on if the characteristic value is within the range of a predetermined value. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
