JPS5650686A - Negative film image pickup device - Google Patents

Negative film image pickup device

Info

Publication number
JPS5650686A
JPS5650686A JP12532079A JP12532079A JPS5650686A JP S5650686 A JPS5650686 A JP S5650686A JP 12532079 A JP12532079 A JP 12532079A JP 12532079 A JP12532079 A JP 12532079A JP S5650686 A JPS5650686 A JP S5650686A
Authority
JP
Japan
Prior art keywords
negative film
image pickup
color
signals
property
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
JP12532079A
Other languages
Japanese (ja)
Inventor
Hiroo Takemura
Manabu Sakai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12532079A priority Critical patent/JPS5650686A/en
Publication of JPS5650686A publication Critical patent/JPS5650686A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/11—Scanning of colour motion picture films, e.g. for telecine

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

PURPOSE:To obtain a positive color picture in a simple way from a negative film, by carrying out the process through the inversion of the polarity of the specified color signal among the signals obtained through the image pickup device. CONSTITUTION:The three primary color signals ER, EG and EB obtained from the negative film of the camera main body are applied to the inverting circuits 21-R, 21-G and 21-B corresponding to each of the three primary color signals. In this case, the color signal of the ordinary negative film becomes linear or bluish as a whole through just inversion of the polarity. In this connection, the DC level is converted by the clamping circuits 22-R, 22-G and 22-B each. Then each color signal is applied for compensation to the gamma compensating circuits 23-R, 23-G and 23-B each in order to secure a fitness between the gamma property of the negative film and that of the image pickup tube and the picture receiver. And then the addition and subtraction are carried out among the three color signals and through the matrix circuit 24 since the spectral sensitivity property of the negative film differs from the pickup property of the ordinary NTSC system. Thus the three color signals ER', EG' and EB' suited to the camera main body are obtained.
JP12532079A 1979-10-01 1979-10-01 Negative film image pickup device Pending JPS5650686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12532079A JPS5650686A (en) 1979-10-01 1979-10-01 Negative film image pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12532079A JPS5650686A (en) 1979-10-01 1979-10-01 Negative film image pickup device

Publications (1)

Publication Number Publication Date
JPS5650686A true JPS5650686A (en) 1981-05-07

Family

ID=14907184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12532079A Pending JPS5650686A (en) 1979-10-01 1979-10-01 Negative film image pickup device

Country Status (1)

Country Link
JP (1) JPS5650686A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103727A (en) * 1975-03-10 1976-09-13 Fuyo Bideo Eijenshii Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103727A (en) * 1975-03-10 1976-09-13 Fuyo Bideo Eijenshii Kk

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