JPS56153335A - Exposure control method - Google Patents

Exposure control method

Info

Publication number
JPS56153335A
JPS56153335A JP5726380A JP5726380A JPS56153335A JP S56153335 A JPS56153335 A JP S56153335A JP 5726380 A JP5726380 A JP 5726380A JP 5726380 A JP5726380 A JP 5726380A JP S56153335 A JPS56153335 A JP S56153335A
Authority
JP
Japan
Prior art keywords
densities
original pictures
original
resemblance
degrees
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
JP5726380A
Other languages
Japanese (ja)
Other versions
JPH0323897B2 (en
Inventor
Takaaki Terashita
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 JP5726380A priority Critical patent/JPS56153335A/en
Priority to US06/258,699 priority patent/US4397545A/en
Priority to CH2841/81A priority patent/CH655187A5/en
Priority to DE19813117334 priority patent/DE3117334A1/en
Publication of JPS56153335A publication Critical patent/JPS56153335A/en
Publication of JPH0323897B2 publication Critical patent/JPH0323897B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original

Abstract

PURPOSE:To print the frames of continuous scenes under similar conditions by determining exposures through considering the degrees of resemblance to the densities of other original pictures in an exposure control method for determining exposures through measuring the densities of the original pictures. CONSTITUTION:Original pictures are subjected to scanning and photometry, and various kinds of density information (average densities by color components, maximum densities, minimum densities, average densities of the upper, lower, right and left parts of image planes) are obtained and are beforehand stored in a memory. The differences in various kinds of density information values between the original picture to be printed and the original pictures adjacent to this are determined, their weighted average are calculated and these are set as the degrees of resemblance of both original pictures. The exposure is determined by considering the weighted average value for the degrees of resemblance of several frames before and behind the original picture to be printed.
JP5726380A 1980-04-30 1980-04-30 Exposure control method Granted JPS56153335A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5726380A JPS56153335A (en) 1980-04-30 1980-04-30 Exposure control method
US06/258,699 US4397545A (en) 1980-04-30 1981-04-29 Exposure control method
CH2841/81A CH655187A5 (en) 1980-04-30 1981-04-30 METHOD FOR CONTROLLING THE EXPOSURE OF AN ORIGINAL IMAGE.
DE19813117334 DE3117334A1 (en) 1980-04-30 1981-04-30 METHOD FOR CONTROLLING THE EXPOSURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5726380A JPS56153335A (en) 1980-04-30 1980-04-30 Exposure control method

Publications (2)

Publication Number Publication Date
JPS56153335A true JPS56153335A (en) 1981-11-27
JPH0323897B2 JPH0323897B2 (en) 1991-03-29

Family

ID=13050631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5726380A Granted JPS56153335A (en) 1980-04-30 1980-04-30 Exposure control method

Country Status (1)

Country Link
JP (1) JPS56153335A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174120A (en) * 1984-02-20 1985-09-07 松下電器産業株式会社 Air type pot
JPS61267749A (en) * 1985-05-22 1986-11-27 Fuji Photo Film Co Ltd Controlling method for photographic system
EP0468533A2 (en) * 1990-07-27 1992-01-29 Fuji Photo Film Co., Ltd. Method of determining an exposure for use in an image forming apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940942A (en) * 1972-08-25 1974-04-17
JPS51112345A (en) * 1974-08-12 1976-10-04 Eastman Kodak Co Photographic printer
JPS5255634A (en) * 1975-08-14 1977-05-07 Gretag Ag Exposure controlling method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940942A (en) * 1972-08-25 1974-04-17
JPS51112345A (en) * 1974-08-12 1976-10-04 Eastman Kodak Co Photographic printer
JPS5255634A (en) * 1975-08-14 1977-05-07 Gretag Ag Exposure controlling method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174120A (en) * 1984-02-20 1985-09-07 松下電器産業株式会社 Air type pot
JPS61267749A (en) * 1985-05-22 1986-11-27 Fuji Photo Film Co Ltd Controlling method for photographic system
JPH0473935B2 (en) * 1985-05-22 1992-11-25
EP0468533A2 (en) * 1990-07-27 1992-01-29 Fuji Photo Film Co., Ltd. Method of determining an exposure for use in an image forming apparatus
US5281995A (en) * 1990-07-27 1994-01-25 Fuji Photo Film Co., Ltd. Method of determining an exposure for use in an image forming apparatus

Also Published As

Publication number Publication date
JPH0323897B2 (en) 1991-03-29

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