JPS5650689A - Color resolution compensating device - Google Patents

Color resolution compensating device

Info

Publication number
JPS5650689A
JPS5650689A JP11847679A JP11847679A JPS5650689A JP S5650689 A JPS5650689 A JP S5650689A JP 11847679 A JP11847679 A JP 11847679A JP 11847679 A JP11847679 A JP 11847679A JP S5650689 A JPS5650689 A JP S5650689A
Authority
JP
Japan
Prior art keywords
color difference
signal
color
difference signal
component
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
JP11847679A
Other languages
Japanese (ja)
Other versions
JPS6013638B2 (en
Inventor
Yoshio Yasumoto
Hidekazu Taira
Tetsuo Tomimoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP54118476A priority Critical patent/JPS6013638B2/en
Priority to US06/184,329 priority patent/US4337479A/en
Priority to GB8029531A priority patent/GB2061663B/en
Priority to DE19803034532 priority patent/DE3034532A1/en
Priority to CA000360171A priority patent/CA1153463A/en
Priority to FR8019766A priority patent/FR2465383A1/en
Publication of JPS5650689A publication Critical patent/JPS5650689A/en
Publication of JPS6013638B2 publication Critical patent/JPS6013638B2/en
Expired 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
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To increase the color resolution as in case the band of the color difference signal is extended, by adding the high-range component of the luminance signal to the color difference signal in proportion to the color saturation degree of the image. CONSTITUTION:The luminance signal Y is applied to the filter 1 for isolation of bands, and only the high-range component YH is extracted. Then the component YH is supplied the nonlinear circuit 2 to obtain the output signal YH' which suppressed the positive part of the component. This signal YH' is supplied to the modulator 3, and the color difference signals R-Y, B-Y and G-Y which are the input signals of the other side are modulated each to obtain the modulated color difference signals R'-Y', B'-Y' and G'-Y'. In such way, the modulated color difference signal C'-Y' (C': R', B' or G') is used in place of the original color difference signal C (C: R, B or G), and thus the color difference signal can contain the high-range component. As a result, the resolution can be increased greatly at the colored area when the color picture is reproduced.
JP54118476A 1979-09-13 1979-09-14 color resolution compensator Expired JPS6013638B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP54118476A JPS6013638B2 (en) 1979-09-14 1979-09-14 color resolution compensator
US06/184,329 US4337479A (en) 1979-09-13 1980-09-05 Color resolution compensator
GB8029531A GB2061663B (en) 1979-09-13 1980-09-12 Colour resolution compensator
DE19803034532 DE3034532A1 (en) 1979-09-13 1980-09-12 COMPENSATION CIRCUIT TO IMPROVE COLOR RESOLUTION
CA000360171A CA1153463A (en) 1979-09-13 1980-09-12 Color resolution compensator
FR8019766A FR2465383A1 (en) 1979-09-13 1980-09-12 COLOR IMAGE RESOLUTION COMPENSATOR FOR COLOR TELEVISION RECEIVER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54118476A JPS6013638B2 (en) 1979-09-14 1979-09-14 color resolution compensator

Publications (2)

Publication Number Publication Date
JPS5650689A true JPS5650689A (en) 1981-05-07
JPS6013638B2 JPS6013638B2 (en) 1985-04-08

Family

ID=14737611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54118476A Expired JPS6013638B2 (en) 1979-09-13 1979-09-14 color resolution compensator

Country Status (1)

Country Link
JP (1) JPS6013638B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102558006B1 (en) * 2017-11-01 2023-07-20 삼성전자주식회사 Carbon-based nanocomposite, electrode and lithium air battery including carbon-based nanocomposite

Also Published As

Publication number Publication date
JPS6013638B2 (en) 1985-04-08

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