| 摘要 |
PURPOSE: A method for capturing images printed on both sides of a paper is provided to analyze a change of sensing images by controlling the strength of incident light which is premised to a target paper, thereby exactly recognizing a front surface and a rear surface image of a target paper by distinguishing the images. CONSTITUTION: A sensing image about a total area of a target paper is measured by sensing the light which transmitted a target paper(S110). The sensing image divides into a plurality of image areas according to the brightness. The image area includes the first image area, the second image area, the third image area, and the fourth image area having each different brightness(S120). A front and a rear images of the target paper is formed by combining the image areas(S130). |
