JPS63107274A - Image data processor - Google Patents

Image data processor

Info

Publication number
JPS63107274A
JPS63107274A JP25330686A JP25330686A JPS63107274A JP S63107274 A JPS63107274 A JP S63107274A JP 25330686 A JP25330686 A JP 25330686A JP 25330686 A JP25330686 A JP 25330686A JP S63107274 A JPS63107274 A JP S63107274A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
color
controller
data
threshold
component
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
JP25330686A
Inventor
Shiro Okamoto
Original Assignee
Canon Inc
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

Links

Abstract

PURPOSE: To precisely reproduce a single color through a simple operation and to save coloring materials by controlling a specific color, the sequence or a sequence controller based on the data about the levels of plural color components and their ratio.
CONSTITUTION: Based on the ratio of data about plural colors apart from the specific color, specific coloring is carried on. When a controller 63 detects that almost all pieces of image data Y', M' and C' (41∼43) are smaller than some threshold L through an I/O port 62, the controller 63 instructs a printer part to limit an image forming process to one black color. If only the data Y' is smaller than the threshold L and the others are larger, they are regarded as a single color of a component Y. A control signal is outputted to the controller 63 so that a printout in one color corresponding to the component Y can be available. Even if some component of the entire picture of an original exceeds the threshold L but negligible, the controller 63 regards it as a black one and processes it similarly.
COPYRIGHT: (C)1988,JPO&Japio
JP25330686A 1986-10-23 1986-10-23 Image data processor Pending JPS63107274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25330686A JPS63107274A (en) 1986-10-23 1986-10-23 Image data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25330686A JPS63107274A (en) 1986-10-23 1986-10-23 Image data processor

Publications (1)

Publication Number Publication Date
JPS63107274A true true JPS63107274A (en) 1988-05-12

Family

ID=17249454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25330686A Pending JPS63107274A (en) 1986-10-23 1986-10-23 Image data processor

Country Status (1)

Country Link
JP (1) JPS63107274A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7072506B1 (en) 1998-03-09 2006-07-04 Minolta Co Ltd Image processing apparatus image forming apparatus and color image determination method thereof
US9241081B2 (en) 2012-12-28 2016-01-19 Kyocera Document Solutions Inc. Image processing device, image forming apparatus, and image processing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7072506B1 (en) 1998-03-09 2006-07-04 Minolta Co Ltd Image processing apparatus image forming apparatus and color image determination method thereof
US7177462B2 (en) 1998-03-09 2007-02-13 Minolta Co., Ltd. Image processing apparatus, image forming apparatus and color image determination method thereof
US7319786B2 (en) 1998-03-09 2008-01-15 Minolta Co., Ltd. Image processing apparatus, image forming apparatus and color image determination method thereof
US9241081B2 (en) 2012-12-28 2016-01-19 Kyocera Document Solutions Inc. Image processing device, image forming apparatus, and image processing method

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