Invention Grant
US08289577B2 Method for halftone image transformation, printing and halftone mask generation
有权
半色调图像转换,打印和半色调掩模生成的方法
- Patent Title: Method for halftone image transformation, printing and halftone mask generation
- Patent Title (中): 半色调图像转换,打印和半色调掩模生成的方法
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Application No.: US12433274Application Date: 2009-04-30
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Publication No.: US08289577B2Publication Date: 2012-10-16
- Inventor: Te-Yuan Li
- Applicant: Te-Yuan Li
- Applicant Address: TW Taoyuan County
- Assignee: Qisda Corporation
- Current Assignee: Qisda Corporation
- Current Assignee Address: TW Taoyuan County
- Priority: TW97116053A 20080501
- Main IPC: G06K15/00
- IPC: G06K15/00 ; G02F1/136

Abstract:
A printing method for printing an input image. Firstly, a halftone mask is generated. The input image is transformed into a halftone image through the halftone mask. The halftone image is then output for printing. The halftone mask is an array of N elements, and the following steps generate the halftone mask. An initial array of N elements is first provided. Thereafter, a first value is selectively assigned to an element in the initial array to generate a first array. The second to the Nth arrays are then recursively generated based on the first array in the following steps. A minimum energy element in an Ith array is first determined. An (I+1)th value is then assigned to the minimum energy element to generate an (I+1)th array, wherein I denotes 2 to N−1.
Public/Granted literature
- US20090273812A1 METHOD FOR HALFTONE IMAGE TRANSFORMATION, PRINTING AND HALFTONE MASK GENERATION Public/Granted day:2009-11-05
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