JP2004145338A5 - - Google Patents

Download PDF

Info

Publication number
JP2004145338A5
JP2004145338A5 JP2003358123A JP2003358123A JP2004145338A5 JP 2004145338 A5 JP2004145338 A5 JP 2004145338A5 JP 2003358123 A JP2003358123 A JP 2003358123A JP 2003358123 A JP2003358123 A JP 2003358123A JP 2004145338 A5 JP2004145338 A5 JP 2004145338A5
Authority
JP
Japan
Prior art keywords
black color
reference pattern
pixel
black
percent
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2003358123A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004145338A (ja
JP4515744B2 (ja
Filing date
Publication date
Priority claimed from US10/280,214 external-priority patent/US6742870B2/en
Application filed filed Critical
Publication of JP2004145338A publication Critical patent/JP2004145338A/ja
Publication of JP2004145338A5 publication Critical patent/JP2004145338A5/ja
Application granted granted Critical
Publication of JP4515744B2 publication Critical patent/JP4515744B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP2003358123A 2002-10-25 2003-10-17 黒色の選択的強調 Expired - Fee Related JP4515744B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/280,214 US6742870B2 (en) 2002-10-25 2002-10-25 Selective enhancement of black

Publications (3)

Publication Number Publication Date
JP2004145338A JP2004145338A (ja) 2004-05-20
JP2004145338A5 true JP2004145338A5 (enExample) 2006-11-30
JP4515744B2 JP4515744B2 (ja) 2010-08-04

Family

ID=32106873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003358123A Expired - Fee Related JP4515744B2 (ja) 2002-10-25 2003-10-17 黒色の選択的強調

Country Status (5)

Country Link
US (1) US6742870B2 (enExample)
EP (1) EP1429200B1 (enExample)
JP (1) JP4515744B2 (enExample)
BR (1) BR0304637A (enExample)
CA (1) CA2445742C (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040080762A1 (en) * 2002-10-25 2004-04-29 Xerox Corporation Half-tone based enhancement of black
US7048349B2 (en) 2004-01-12 2006-05-23 Xerox Corporation Color printing

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0738084B2 (ja) * 1986-08-29 1995-04-26 富士ゼロックス株式会社 画像形成方法
US5438437A (en) * 1991-10-17 1995-08-01 Konica Corporation Image forming apparatus with exposure, size, and position correction for pixels
US5252995A (en) * 1992-09-03 1993-10-12 Hewlett-Packard Company Color boundary enhancement in a multi-color electrostatic printer
ATE195689T1 (de) * 1992-10-30 2000-09-15 Canon Kk Verfahren zur herstellung eines schwarzen bildes in dem schwarze tinte farbiger tinte überlagert ist
JPH0740549A (ja) * 1993-07-26 1995-02-10 Canon Inc インクジェット記録方法および装置
JP3377302B2 (ja) * 1994-07-21 2003-02-17 株式会社リコー カラー画像形成装置
CA2154100C (en) * 1994-10-27 2000-10-24 Steven J. Harrington Image halftoning system
US5712924A (en) * 1994-11-07 1998-01-27 Mita Industrial Co., Ltd. Image processing apparatus
JP3768028B2 (ja) * 1999-04-30 2006-04-19 シャープ株式会社 画像処理方法、画像処理装置及び画像形成装置
JP2001260413A (ja) * 2000-03-14 2001-09-25 Sharp Corp 画像形成装置
JP2002099127A (ja) * 2000-09-25 2002-04-05 Konica Corp 画像形成装置と画像形成方法
JP2002108021A (ja) * 2000-09-28 2002-04-10 Konica Corp 白色トナーと画像形成装置
US6493083B2 (en) * 2000-12-15 2002-12-10 Xerox Corporation Method for measuring color registration and determining registration error in marking platform
JP2002283615A (ja) * 2001-03-23 2002-10-03 Ricoh Co Ltd 画像形成装置及び画像形成方法

Similar Documents

Publication Publication Date Title
JP4679575B2 (ja) 単色画像データを表す複合画像データを生成する装置
US20090141311A1 (en) Method and apparatus for multi-color printing using hybrid dot-line halftone composite screens
JP5055418B2 (ja) 画像処理装置および画像処理方法
US8427707B2 (en) Image processing apparatus and control method thereof
JP2004145338A5 (enExample)
JP2006129476A5 (enExample)
JP2004145339A5 (enExample)
JP2005204308A (ja) カラー印刷
US20090147019A1 (en) Generating and merging two halftoned images
JP4598537B2 (ja) カラー印刷方法
JP2008006624A (ja) 印刷方法、印刷物及び色版
US8068257B2 (en) Color printing reducing artifacts and banding by rendering black dots, replacing dots with process black, and adding non-black dots for different subsets of black dots
JP4515744B2 (ja) 黒色の選択的強調
US10313559B2 (en) Rosette-free printing
JP2006245674A (ja) 画像形成装置および階調表現方法
CN1894950A (zh) Cmyk印刷的四列加网印刷法
JP2004145339A (ja) 黒色の選択的増強方法
JP2006326940A (ja) 印刷装置及び印刷方法
JP2006157741A (ja) 画像形成方法および装置
JP2005086229A5 (enExample)
JPH1016459A (ja) 偽造防止印刷物
JP2004282245A (ja) スクリーン処理部を有するタンデム方式の印刷装置
JP2008546351A (ja) 周期的ハーフトーン処理に伴うチャネル間クロック周波数選択のための方法およびシステム
JP2006238083A (ja) 画像形成装置
JPH0220173A (ja) カラー画像印刷方式