| 摘要 |
An image processing apparatus includes a segmenting unit, a representative-point setting unit, a vector calculating unit, and a screen-ruling-and-angle extracting unit. The segmenting unit segments an image into regions each having connected pixels. The representative-point setting unit sets a representative point representing each of the regions segmented by the segmenting unit. The vector calculating unit calculates vectors, each constituted of two representative points, on the basis of the representative points set by the representative-point setting unit. The screen-ruling-and-angle extracting unit extracts screen ruling and a screen angle used in the image on the basis of distribution of the vectors calculated by the vector calculating unit.
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