Patent ID: 10565482

Abstract:
An image processing system includes first and second devices. The first device converts print data described in a page description language into intermediate data. The second device converts the intermediate data into raster data and supplies the raster data to a printer. The first device includes a shape modifier, a first generator, and an output section. The shape modifier divides plural graphic elements indicated by the intermediate data within a unit of output into groups, and modifies, among the graphic elements in each of the groups, a shape of first-type graphic elements having a specific component into a shape without having an overlapping portion between the first-type graphic elements. A color of the specific component is superimposed on a color of an underlying graphic element. The first generator generates an item of mask information for identifying a logical OR shape of the first-type graphic elements included in each of the groups. The output section outputs the plural graphic elements, and outputs the first-type graphic elements having the modified shape in each of the groups so that the first-type graphic elements in the individual groups are output, together with the associated items of mask information, in reverse order of an order in which the individual groups are arranged within the unit of output. The second device includes a mask storage, an graphic storage, and a renderer. The mask storage stores the items of mask information. The graphic storage stores a graphic of the unit of output. Upon receiving an item of the mask information from the output section, the renderer adds the item of the mask information to the mask storage. Then, upon receiving a first-type graphic element from the output section, the renderer masks the first-type graphic element with the logical OR shape identified by the items of mask information stored in the mask storage, and then writes a graphic of the masked first-type graphic element into the graphic storage.