JPS6486761A - Image information reading method - Google Patents

Image information reading method

Info

Publication number
JPS6486761A
JPS6486761A JP62245344A JP24534487A JPS6486761A JP S6486761 A JPS6486761 A JP S6486761A JP 62245344 A JP62245344 A JP 62245344A JP 24534487 A JP24534487 A JP 24534487A JP S6486761 A JPS6486761 A JP S6486761A
Authority
JP
Japan
Prior art keywords
voltage
discrete
reading
high voltage
value
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
JP62245344A
Other languages
Japanese (ja)
Other versions
JPH0666857B2 (en
Inventor
Noritaka Fukai
Akira Yamaguchi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP62245344A priority Critical patent/JPH0666857B2/en
Publication of JPS6486761A publication Critical patent/JPS6486761A/en
Publication of JPH0666857B2 publication Critical patent/JPH0666857B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Radiography Using Non-Light Waves (AREA)

Abstract

PURPOSE:To perform the reading of a fine image with quite simple constitution by correcting picture data by selecting a high voltage to be impressed on a photomultiplier out of a few number of discrete fixed values and applying an interpolation processing when a reading voltage between the discrete voltages is designated. CONSTITUTION:The high voltage related to reading designated sensitivity is set, for example, at 560V, and when the voltage 560V is set at a high voltage generator 36, the high voltage generator 36 outputs only the discrete values, for example, 500V, 600V, and 700V, etc, In such a case, the voltage is set at the voltage 600V that is nearest to 560V, and the voltage 600V is introduced to the high voltage input terminal of the photomultiplier 34. Meanwhile, the differential voltage between a continuous voltage value 560V related to the reading designated sensitivity and the discrete voltage value 600V related to preset sensitivity, that is, a voltage 40V is calculated by a subtractor 42, and is introduced to a correction circuit 40. And the value which reads picture information by the discrete voltage value is corrected as if it is read by the continuous voltage value 560V related to designated sensitivity.
JP62245344A 1987-09-29 1987-09-29 Image information reader Expired - Fee Related JPH0666857B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62245344A JPH0666857B2 (en) 1987-09-29 1987-09-29 Image information reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62245344A JPH0666857B2 (en) 1987-09-29 1987-09-29 Image information reader

Publications (2)

Publication Number Publication Date
JPS6486761A true JPS6486761A (en) 1989-03-31
JPH0666857B2 JPH0666857B2 (en) 1994-08-24

Family

ID=17132277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62245344A Expired - Fee Related JPH0666857B2 (en) 1987-09-29 1987-09-29 Image information reader

Country Status (1)

Country Link
JP (1) JPH0666857B2 (en)

Also Published As

Publication number Publication date
JPH0666857B2 (en) 1994-08-24

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