基本信息:
- 专利标题： RECURSIVE HALFTONING AND GRAY VALUE SUBSTITUTION
- 申请号：US15545712 申请日：2015-02-27
- 公开(公告)号：US20180013921A1 公开(公告)日：2018-01-11
- 发明人： Robert Ulichney , Matthew D Gaubatz , Stephen Pollard
- 申请人： Hewlett-Packard Development Company, L.P.
- 国际申请： PCT/US2015/017960 WO 20150227
- 主分类号： H04N1/405
- IPC分类号： H04N1/405 ; H04N1/52
摘要：
An example system in accordance with an aspect of the present disclosure includes a halftone engine and a gray value engine. The halftone engine is to apply halftoning to an image recursively across a plurality of levels of image scales and spatial resolutions, to generate a pattern that is at least quasi-periodic across the plurality of levels. The gray value engine is to substitute gray values recursively for at least a portion of the halftoning.
公开/授权文献:
- US10362194B2 Recursive halftoning and gray value substitution 公开/授权日：2019-07-23
IPC结构图谱:
| H | 电学 |
| --H04 | 电通信技术 |
| ----H04N | 图像通信，例如电视 |
| ------H04N1/00 | 文件或类似物的扫描、传输或重现，例如传真传输；其零部件 |
| --------H04N1/387 | .对原样进行组编、变位或其他修正 |
| ----------H04N1/405 | ..半色调，即将连续色调的原件转换为只显示两电平的相应信号 |