JPS5510223A - Picture processing system - Google Patents

Picture processing system

Info

Publication number
JPS5510223A
JPS5510223A JP8225278A JP8225278A JPS5510223A JP S5510223 A JPS5510223 A JP S5510223A JP 8225278 A JP8225278 A JP 8225278A JP 8225278 A JP8225278 A JP 8225278A JP S5510223 A JPS5510223 A JP S5510223A
Authority
JP
Japan
Prior art keywords
picture
density
small
comparisons
columns
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
JP8225278A
Other languages
Japanese (ja)
Inventor
Hiroo Ueda
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP8225278A priority Critical patent/JPS5510223A/en
Publication of JPS5510223A publication Critical patent/JPS5510223A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To obtain a picture of high qulity with diagonal information determined through comparisons between the density sums of picture-element rows and columns adjoining to a sampling picture elements, when outputting several density levels in the form of binary small picture elements quartered.
CONSTITUTION: To output picture element X in the form of quartered small picture elements O1 to O4, comparisons are made between component picture-element density sum S1=A+B+C of adjacent picture-element row (A, B and C) on the upper side of picture element X and sum S4=F+G+H of adjacent picture-element row (F, G and H) on the lower side of the picture element, and between the component picture-element density sums S2=A+D+F and S3=C+E+H of adjacent picture-element columns (A, D and F) and (C, E and H) on the left and right sides; for example, when the density of picture element X is 2/5 between 1/5 (white) and 5/5 (black) with S1<S4 and S2>S3, the density of each small picture element is determied like O3=1 and O1=O2=O4=0. In this way, the density of each small picture element is obtained through the comparisons between density sums of picture-element rows and columns on upper and lower side and on left and right side, so that diagonal information can be utilized.
COPYRIGHT: (C)1980,JPO&Japio
JP8225278A 1978-07-06 1978-07-06 Picture processing system Pending JPS5510223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8225278A JPS5510223A (en) 1978-07-06 1978-07-06 Picture processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8225278A JPS5510223A (en) 1978-07-06 1978-07-06 Picture processing system

Publications (1)

Publication Number Publication Date
JPS5510223A true JPS5510223A (en) 1980-01-24

Family

ID=13769239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8225278A Pending JPS5510223A (en) 1978-07-06 1978-07-06 Picture processing system

Country Status (1)

Country Link
JP (1) JPS5510223A (en)

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