| 发明名称 | Halftone mechanism | ||
| 摘要 | A method is disclosed. The method includes applying a human visual system (HVS) model to a Continuous Tone Image (CTI) and a initial Half Tone Image (HTI) to generate a perceived CTI and a perceived HTI and computing a change in pixel error for a first pixel by toggling the first pixel with all the possible output states and swapping the first pixel with all neighbor pixels. | ||
| 申请公布号 | US9363414(B2) | 申请公布日期 | 2016.06.07 |
| 申请号 | US201414527057 | 申请日期 | 2014.10.29 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Chandu Kartheek;Stanich Mikel J.;Wu Chai Wah;Trager Barry M. |
| 分类号 | H04N1/40;G06K15/02;H04N1/405 | 主分类号 | H04N1/40 |
| 代理机构 | Blakely, Sokoloff, Taylor & Zafman LLP | 代理人 | Blakely, Sokoloff, Taylor & Zafman LLP |
| 主权项 | 1. An article of manufacture comprising a non-transitory machine-readable medium including data that, when accessed by a machine, cause the machine to perform operations comprising: performing multi-bit halftoning of an image via a Direct Multi-bit Search (DMS), including: applying a human visual system (HVS) model to a Continuous Tone Image (CTI) and an initial Half Tone Image (HTI) to generate a perceived CTI and a perceived HTI; andcomputing a change in pixel error for a first pixel by: toggling the first pixel with all the possible output states; andswapping the first pixel with all neighbor pixels; andfinding an operation with maximum error decrease for the first pixel. | ||
| 地址 | Tokyo JP | ||