Invention Grant
- Patent Title: Method for adjusting the amount of marking material in a printed image
- Patent Title (中): 调整印刷图像中标记材料量的方法
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Application No.: US13765387Application Date: 2013-02-12
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Publication No.: US08582178B2Publication Date: 2013-11-12
- Inventor: Jantinus Woering
- Applicant: OCE-Technologies B.V.
- Applicant Address: NL Venlo
- Assignee: OCE-Technologies B.V.
- Current Assignee: OCE-Technologies B.V.
- Current Assignee Address: NL Venlo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: EP10186879 20101007
- Main IPC: G06K15/02
- IPC: G06K15/02 ; H04N1/46 ; B41J2/47

Abstract:
A method for reducing an amount of marking material for printing a binary image on a receiving material uses a printing process configured to apply print pixels and to associate each image pixel with at least two print pixels. A print signal is generated indicating for each print pixel whether marking material is to be applied. The print signal is filtered by a predefined mask that defines for which print pixels no marking material will be applied independent of the pixel value of the associated image pixel. The print pixels that are blocked by the mask define a regular pattern to avoid graininess in the printed image. The main effect on print quality is a reduction of the contrast in the image. By choosing one of a set of at least two masks, the user selects the amount of reduction that is realized in the print process.
Public/Granted literature
- US20130176581A1 METHOD FOR ADJUSTING THE AMOUNT OF MARKING MATERIAL IN A PRINTED IMAGE Public/Granted day:2013-07-11
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