| 摘要 |
An image processing method generally includes: obtaining a vanishing point on a curve surface in a two-dimension image; extracting all the straight line segments between a top contour line and a bottom contour line of the curve surface by the vanishing point; removing a perspective distortion to get parallel straight line segments; obtaining the lengths of the straight line segments, obtaining the true width of each of the straight line segments in a three-dimension space and the depth increment of the straight line segments according to the lengths; obtaining the expanded width of each straight line segment according to the true width and the depth increment; obtaining the total expanded width of the curve surface to transform it into a flat surface; transforming image contents on the curve surface onto the flat surface. The method can be applied when scanning an open book. |
