JPS6469350A - Image processing method - Google Patents

Image processing method

Info

Publication number
JPS6469350A
JPS6469350A JP62226873A JP22687387A JPS6469350A JP S6469350 A JPS6469350 A JP S6469350A JP 62226873 A JP62226873 A JP 62226873A JP 22687387 A JP22687387 A JP 22687387A JP S6469350 A JPS6469350 A JP S6469350A
Authority
JP
Japan
Prior art keywords
color
colors
inks
printing
ary
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.)
Pending
Application number
JP62226873A
Other languages
Japanese (ja)
Inventor
Fumio Nagasaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP62226873A priority Critical patent/JPS6469350A/en
Publication of JPS6469350A publication Critical patent/JPS6469350A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/205—Ink jet for printing a discrete number of tones

Abstract

PURPOSE:To correct color deviation caused by the characteristics of respective color inks, by a method wherein, an N-ary printing is carried out with a color nearest in distance on a color coordinate space, and an error in N-ary processing is fed back in the succeeding binarization of pixels, whereby the error of colors is minimized in a small area. CONSTITUTION:In the N-ary printing of a color image, for example, inks of Yellow, Magenta, Cyan, and Black are used. If the colors except Black are allowed only to be mixed with the other arbitrary one color in the ratio of 1:1 and the condition of not generating any printing dot is White, eight colors are obtained by combination. The tristimulus values of these colors are measured by a color-difference meter, and an appropriate linear transformation to the aforesaid values is defined. As a result, 8 points on a color coordinate space having three components are imparted. With respect to one pixel in the color image, a point occupied by the color on the color coordinate space is arithmetically determined, and spatial distances between the point and N-points, which were previously calculated as values obtained by the combination of the printing inks, are respectively calculated. The pixel is printed in the combination of the inks corresponding to the point of the nearest distance.
JP62226873A 1987-09-10 1987-09-10 Image processing method Pending JPS6469350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226873A JPS6469350A (en) 1987-09-10 1987-09-10 Image processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226873A JPS6469350A (en) 1987-09-10 1987-09-10 Image processing method

Publications (1)

Publication Number Publication Date
JPS6469350A true JPS6469350A (en) 1989-03-15

Family

ID=16851911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226873A Pending JPS6469350A (en) 1987-09-10 1987-09-10 Image processing method

Country Status (1)

Country Link
JP (1) JPS6469350A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10191084A (en) * 1996-12-27 1998-07-21 Brother Ind Ltd Binarization method for color image by error spread method and storage medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10191084A (en) * 1996-12-27 1998-07-21 Brother Ind Ltd Binarization method for color image by error spread method and storage medium

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