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
  • Application No.: US12433274
    Application Date: 2009-04-30
  • Publication No.: US08289577B2
    Publication 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
Method for halftone image transformation, printing and halftone mask generation
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.
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