Patent ID: 6055064
Filing Date: 2000-04-25
Classification: G06K,H04N

Abstract:
A method of converting a Color Electronic Pre-press System (CEPS) linework (LW) image data file to a composite Page Description Language (PDL) file, the CEPS linework image data file including a linework image made up of a multiplicity of linework run length encoded (RLE) entries, the linework image featuring dimensions and resolution, the method comprising the steps of:(a) importing a portion of the linework image data file into a memory;(b) reading parameters from the portion of the linework image data file associated with the dimensions and resolution of the linework image;(c) preparing the composite PDL file according to the parameters from step (b);(d) reading a plurality of linework RLE entries from the CEPS linework image data file;(e) sorting the plurality of linework RLE entries by color into clusters of linework RLE entries;(f) translating each cluster of linework RLE entries into at least one PDL element being realized as a rectangle if said cluster includes substantially a majority of RLE entries extending across a dimension of the linework image, and alternatively translating each cluster of linework RLE entries into at least one PDL element being realized as a concatenation of horizontal line segments; and(g) exporting each PDL element to the composite PDL file.