BR0102229A - Difusão de erros de semivetores de nìveis múltiplos - Google Patents
Difusão de erros de semivetores de nìveis múltiplosInfo
- Publication number
- BR0102229A BR0102229A BR0102229-6A BR0102229A BR0102229A BR 0102229 A BR0102229 A BR 0102229A BR 0102229 A BR0102229 A BR 0102229A BR 0102229 A BR0102229 A BR 0102229A
- Authority
- BR
- Brazil
- Prior art keywords
- diffusion
- level
- separations
- semivector
- errors
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/52—Circuits or arrangements for halftone screening
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Color Image Communication Systems (AREA)
- Color, Gradation (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Abstract
Patente de Invenção: "DIFUSãO DE ERROS DE SEMIVETORES DE NìVEIS MúLTIPLOS". A presente invenção refere-se a um método e aparelho para a difusão de cores em níveis múltiplos que emprega uma quantificação de semivetores. Quando operando sobre os dados de imagem que compreendem três separações de cor, o método emprega uma quantificação de vetores para as duas separações com as saídas de cores mais visualmente perceptivas para gerar um pixel de saída de níveis múltiplos para cada separação baseado na soma e na diferença dos valores de pixel de entrada para as duas separações. O método gera pixels de saída de níveis múltiplos para a separação da terceira cor utilizando uma difusão de erros escalar.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/585,843 US6760127B1 (en) | 2000-06-01 | 2000-06-01 | Multi-level semi-vector error diffusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0102229A true BR0102229A (pt) | 2002-02-13 |
Family
ID=24343186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0102229-6A BR0102229A (pt) | 2000-06-01 | 2001-06-01 | Difusão de erros de semivetores de nìveis múltiplos |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6760127B1 (pt) |
| JP (1) | JP2002044450A (pt) |
| BR (1) | BR0102229A (pt) |
| CA (1) | CA2349314C (pt) |
| MX (1) | MXPA01005427A (pt) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9848105B1 (en) * | 1998-05-18 | 2017-12-19 | Xerox Corporation | Reducing smear and slow response artifacts in vector error diffusion |
| US6920243B2 (en) * | 2001-08-27 | 2005-07-19 | Hewlett-Packard Development Company, L.P. | Color smooth error diffusion |
| US7268919B2 (en) * | 2002-01-17 | 2007-09-11 | Seiko Epson Corporation | Image data processing apparatus, method, and program that diffuses gradiation error for each pixel in target block |
| US7301674B2 (en) * | 2002-10-31 | 2007-11-27 | Hewlett-Packard Development Company, L.P. | Translation of an input pixel value to an output pixel value |
| US7315398B2 (en) * | 2003-12-19 | 2008-01-01 | Xerox Corporation | Multi-level error diffusion with color image data |
| US7295347B2 (en) * | 2003-12-19 | 2007-11-13 | Xerox Corporation | Image processing method for generating multi-level data |
| US7639887B2 (en) * | 2004-12-14 | 2009-12-29 | Intel Corporation | Error diffusion-based image processing |
| US7469059B1 (en) * | 2004-12-17 | 2008-12-23 | Google Inc. | Reorganization of raw image data for processing |
| US7626729B2 (en) * | 2005-03-02 | 2009-12-01 | Xerox Corporation | Halftoning with color error diffusion of one separation based on color error diffusion of a previous separation |
| US8159720B2 (en) * | 2005-04-08 | 2012-04-17 | Xerox Corporation | Color error diffusion |
| US7991235B2 (en) | 2007-02-27 | 2011-08-02 | Xerox Corporation | Light compression for color images using error diffusion |
| US8570601B2 (en) | 2011-04-29 | 2013-10-29 | Xerox Corporation | Process direction streak source diagnosis in printers |
| US11037329B2 (en) * | 2019-06-03 | 2021-06-15 | Google Llc | Encoding positional coordinates based on multiple channel color values |
| JP7388156B2 (ja) | 2019-11-28 | 2023-11-29 | コニカミノルタ株式会社 | 画像処理装置、画像処理方法及びプログラム |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3110924B2 (ja) * | 1993-09-30 | 2000-11-20 | キヤノン株式会社 | 画像形成装置 |
| US5621546A (en) | 1993-11-02 | 1997-04-15 | Xerox Corporation | Method and apparatus for vector error diffusion with output color control |
| US5565994A (en) | 1994-12-06 | 1996-10-15 | Xerox Corporation | Multiple separation error diffusion, with cross separation correlation control for color images |
| US5748785A (en) * | 1996-09-26 | 1998-05-05 | Xerox Corporation | Inter-separation color image processing using error diffusion |
| US5784496A (en) * | 1996-09-26 | 1998-07-21 | Xerox Corporation | Error sum method and apparatus for intercolor separation control in a printing system |
| US6072591A (en) | 1997-06-30 | 2000-06-06 | Xerox Corporation | Sum and difference error diffusion |
| US6014233A (en) | 1998-06-09 | 2000-01-11 | Xerox Corporation | Error diffusion for color images with semi-vector quantization |
| US6483606B1 (en) * | 1998-08-26 | 2002-11-19 | Xerox Corporation | Error diffusion on moderate numbers of output colors |
| US6721063B1 (en) * | 2000-01-19 | 2004-04-13 | Xerox Corporation | Image rendering system and method using sum and difference error diffusion with arbitrary and redundant colors |
-
2000
- 2000-06-01 US US09/585,843 patent/US6760127B1/en not_active Expired - Fee Related
-
2001
- 2001-05-10 CA CA002349314A patent/CA2349314C/en not_active Expired - Fee Related
- 2001-05-22 JP JP2001151770A patent/JP2002044450A/ja active Pending
- 2001-05-30 MX MXPA01005427A patent/MXPA01005427A/es active IP Right Grant
- 2001-06-01 BR BR0102229-6A patent/BR0102229A/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA01005427A (es) | 2002-08-20 |
| CA2349314A1 (en) | 2001-12-01 |
| JP2002044450A (ja) | 2002-02-08 |
| US6760127B1 (en) | 2004-07-06 |
| CA2349314C (en) | 2007-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B07A | Technical examination (opinion): publication of technical examination (opinion) | ||
| B08F | Application fees: dismissal - article 86 of industrial property law |
Free format text: REFERENTE A 14A ANUIDADE. |
|
| B08K | Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87) |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2310 DE 14-04-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |