BR0001730A - Método para sombrear por difusão de erro pra imprimir uma imagem em cores - Google Patents

Método para sombrear por difusão de erro pra imprimir uma imagem em cores

Info

Publication number
BR0001730A
BR0001730A BR0001730-2A BR0001730A BR0001730A BR 0001730 A BR0001730 A BR 0001730A BR 0001730 A BR0001730 A BR 0001730A BR 0001730 A BR0001730 A BR 0001730A
Authority
BR
Brazil
Prior art keywords
error diffusion
color planes
color
tone
dependent
Prior art date
Application number
BR0001730-2A
Other languages
English (en)
Portuguese (pt)
Inventor
Morgan Thomas Schramm
Jay S Gondek
Original Assignee
Hewlett Packard Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of BR0001730A publication Critical patent/BR0001730A/pt

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
    • H04N1/40—Picture signal circuits
    • 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)
  • Facsimile Image Signal Circuits (AREA)
  • Color, Gradation (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
BR0001730-2A 1999-05-07 2000-05-05 Método para sombrear por difusão de erro pra imprimir uma imagem em cores BR0001730A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/307,064 US6501564B1 (en) 1999-05-07 1999-05-07 Tone dependent plane dependent error diffusion halftoning

Publications (1)

Publication Number Publication Date
BR0001730A true BR0001730A (pt) 2001-01-02

Family

ID=23188092

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0001730-2A BR0001730A (pt) 1999-05-07 2000-05-05 Método para sombrear por difusão de erro pra imprimir uma imagem em cores

Country Status (5)

Country Link
US (2) US6501564B1 (enExample)
JP (1) JP2000354172A (enExample)
KR (1) KR100681108B1 (enExample)
BR (1) BR0001730A (enExample)
GB (1) GB2352353B (enExample)

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Also Published As

Publication number Publication date
US6501564B1 (en) 2002-12-31
US20030090728A1 (en) 2003-05-15
KR100681108B1 (ko) 2007-02-08
JP2000354172A (ja) 2000-12-19
GB0009598D0 (en) 2000-06-07
US6870644B2 (en) 2005-03-22
KR20010020817A (ko) 2001-03-15
GB2352353B (en) 2003-07-23
GB2352353A (en) 2001-01-24

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 7O, 8O E 9O ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 NA RPI2003 DE 26/05/2009.