JPH0234234B2 - - Google Patents

Info

Publication number
JPH0234234B2
JPH0234234B2 JP58222485A JP22248583A JPH0234234B2 JP H0234234 B2 JPH0234234 B2 JP H0234234B2 JP 58222485 A JP58222485 A JP 58222485A JP 22248583 A JP22248583 A JP 22248583A JP H0234234 B2 JPH0234234 B2 JP H0234234B2
Authority
JP
Japan
Prior art keywords
image signal
background level
reflectance
level
density
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.)
Expired - Lifetime
Application number
JP58222485A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60114085A (ja
Inventor
Hideyuki Hanaoka
Toshihiro Suzuki
Mitsuo Togashi
Hiroshi Ochi
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.)
Nippon Telegraph and Telephone Corp
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
Nippon Telegraph and Telephone 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 Matsushita Electronics Corp, Nippon Telegraph and Telephone Corp filed Critical Matsushita Electronics Corp
Priority to JP58222485A priority Critical patent/JPS60114085A/ja
Publication of JPS60114085A publication Critical patent/JPS60114085A/ja
Publication of JPH0234234B2 publication Critical patent/JPH0234234B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Facsimile Image Signal Circuits (AREA)
JP58222485A 1983-11-25 1983-11-25 原稿読取装置 Granted JPS60114085A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58222485A JPS60114085A (ja) 1983-11-25 1983-11-25 原稿読取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58222485A JPS60114085A (ja) 1983-11-25 1983-11-25 原稿読取装置

Publications (2)

Publication Number Publication Date
JPS60114085A JPS60114085A (ja) 1985-06-20
JPH0234234B2 true JPH0234234B2 (en, 2012) 1990-08-02

Family

ID=16783165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58222485A Granted JPS60114085A (ja) 1983-11-25 1983-11-25 原稿読取装置

Country Status (1)

Country Link
JP (1) JPS60114085A (en, 2012)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178667A (ja) * 1982-04-12 1983-10-19 Fujitsu Ltd 信号処理回路

Also Published As

Publication number Publication date
JPS60114085A (ja) 1985-06-20

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