The graphics data interpolation device, graphics data interpolation method and records the graphics data interpolation program the medium

摘要

PROBLEM TO BE SOLVED: To efficiently perform interpolation even when plural kinds of processing objects are included. SOLUTION: In the case of superimposing plural kinds of image data and writing them on a color information virtual plotting surface, a virtual plotting means C11 writes the attribute information on respective picture elements on an attribute information virtual plotting surface so as to allow identification and read-out for the respective kinds of the image data. At the time of reading a superimposed result from the virtual plotting surface and performing an interpolation processing, an interpolation means C13 performs read-out for the respective kinds of the image data based on the attribute information and executes an optimum interpolation processing corresponding to the respective kinds. Also, because of the property of the interpolation processing, respective boundaries receive some influence, so that superimposing after the interpolation processing is controlled so as to make the boundaries most appropriate by a superimposing means C14. Thus, an optimum interpolated result is obtained even in the case that the image data coexist.