JPS57212448A - Evaluating device of color original - Google Patents

Evaluating device of color original

Info

Publication number
JPS57212448A
JPS57212448A JP56098917A JP9891781A JPS57212448A JP S57212448 A JPS57212448 A JP S57212448A JP 56098917 A JP56098917 A JP 56098917A JP 9891781 A JP9891781 A JP 9891781A JP S57212448 A JPS57212448 A JP S57212448A
Authority
JP
Japan
Prior art keywords
camera
incident light
original
concentration
color original
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
JP56098917A
Other languages
Japanese (ja)
Inventor
Akihiko Tanaka
Yasuo Kubota
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP56098917A priority Critical patent/JPS57212448A/en
Publication of JPS57212448A publication Critical patent/JPS57212448A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F3/00—Colour separation; Correction of tonal value

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Image Communication Systems (AREA)

Abstract

PURPOSE:To divide the concentration of a color original into plural stages and to extract the concentration information, by providing an incident light control means to a TV camera and carrying out the photographing while controlling the incident light. CONSTITUTION:A color original 1 is photographed by a TV camera 3 via a filter 2. The output of the camera 3 is converted into a digital form through an A/D converter 4 and fed to a computer 6 via an interface 5 to be used for the process of the original image information. A diaphragm is available in place of the filter 2 as long as the incident light from the original 1 can be controlled in order to make up for the lack of the dynamic range of the camera 3. Thus the image 1 is divided into plural stages of concentration to be photographed by means of those above-mentioned incident light control means. As a result, the dynamic range of the camera 3 can be increased equivalently.
JP56098917A 1981-06-25 1981-06-25 Evaluating device of color original Pending JPS57212448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56098917A JPS57212448A (en) 1981-06-25 1981-06-25 Evaluating device of color original

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56098917A JPS57212448A (en) 1981-06-25 1981-06-25 Evaluating device of color original

Publications (1)

Publication Number Publication Date
JPS57212448A true JPS57212448A (en) 1982-12-27

Family

ID=14232477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56098917A Pending JPS57212448A (en) 1981-06-25 1981-06-25 Evaluating device of color original

Country Status (1)

Country Link
JP (1) JPS57212448A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517242A (en) * 1993-06-29 1996-05-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Image sensing device having expanded dynamic range

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5355202A (en) * 1976-10-29 1978-05-19 Toppan Printing Co Ltd Color image compensation apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5355202A (en) * 1976-10-29 1978-05-19 Toppan Printing Co Ltd Color image compensation apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517242A (en) * 1993-06-29 1996-05-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Image sensing device having expanded dynamic range

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