Trapping area creating method, trapping area creating apparatus, and trapping area creating program storage medium

摘要

A trapping area creating method in which an image represented in form of a combination of polygons is divided into a plurality of image areas by a straight line passing through vertexes of the polygons. The propriety of trapping is decided for each pair of image areas adjacent to one another in at least one direction of two predetermined directions, with respect to the plurality of image areas wherein the image is divided. A band-shaped trapping area extending along a boundary of two image areas constituting a pair of image areas decided as being suitable for a trapping is created.