Apparatus and accompanying method for converting a bit mapped monochromatic image to a grey scale image using table look up operations
March 31, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectronic half-tone generating means for facsimile reproduction system Method and apparatus for reproducing an original gray scale image Enhancement of video images by selective introduction of gray-scale pels Method and apparatus for reproducing an image which has a coarser resolution than utilized in scanning of the image Unscreening of stored digital halftone images Method for operating a microscopical mapping system Line figure connecting apparatus Patent #: 4855933 InventorAssigneeApplicationNo. 331485 filed on 03/31/1989US Classes:345/698, Adjusting display pixel size or pixels per given area (i.e., resolution)345/589Color or intensityExaminersPrimary: Harkcom, Gary V.Assistant: Nguyen, Phu K. Attorney, Agent or FirmInternational ClassG06K 015/00AbstractApparatus and an accompanying method for converting a relatively high resolution halftone bit-mapped monochromatic document, such as illustratively a halftone separation which exists in a CDPF print file, into a relatively low resolution continuous tone grey scale document which, when the latter is applied to a display screen of a video monitor having appropriate grey scale capability, would provide a readable displayed page, i.e. a "preview", that approximately depicts how the bit-mapped document would appear when printed.Other References
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