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US 2008/0186540 A1Published application
Image Processing Method Incorporating Decompression
AssigneeSilverbrook Research Pty Ltd
InventorsKia Silverbrook, Paul Lapstun, Simon Robert Walmsley
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Abstract
A method is provided for image processing a page to be printed. The method includes the step of respectively decompressing a bi-level black layer and a contone layer of a page to be printed. The decompressed contone layer is halftoned to form a bi-level cyan, yellow, magenta, and black (CYMK) layer. The method further includes the step of compositing the decompressed bi-level black layer over the bi-level CYMK layer to form a bi-level CYMK image of the page to be printed.
Claims7
A method for image processing page data representing a page to be printed, the method comprising the steps of:
- respectively decompressing a bi-level black layer and a contone layer of the page data;
- halftoning the decompressed contone layer to form a bi-level cyan, yellow, magenta, and black (CYMK) layer;
- compositing the decompressed bi-level black layer over the bi-level CYMK layer to form a bi-level CYMK image of the page to be printed;
- and
- carrying out processing operations for printing the CMYK image.
2 more elements
Dependencies are inferred from the claim text.