JPS648794A - Luminance signal chrominance signal separation filter corresponding to picture correlation - Google Patents

Luminance signal chrominance signal separation filter corresponding to picture correlation

Info

Publication number
JPS648794A
JPS648794A JP16441487A JP16441487A JPS648794A JP S648794 A JPS648794 A JP S648794A JP 16441487 A JP16441487 A JP 16441487A JP 16441487 A JP16441487 A JP 16441487A JP S648794 A JPS648794 A JP S648794A
Authority
JP
Japan
Prior art keywords
correlation
horizontal
picture
vertical
strong
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
JP16441487A
Other languages
Japanese (ja)
Inventor
Reiko Tamura
Hiroshi Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16441487A priority Critical patent/JPS648794A/en
Publication of JPS648794A publication Critical patent/JPS648794A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To reduce dot disturbance by using a picture correlation deciding means so as to decide the correlation of a picture and using an output of a horizontal or vertical direction filter as an output of a luminance signal chrominance signal separation filter with respect to a picture having a strong correlation. CONSTITUTION:A picture correlation deciding circuit 7 detects the correlation of vertical and horizontal pictures with respect to a noticed sampling point. When the vertical correlation is strong, a vertical direction color signal extraction filter 6a is selected. When the horizontal correlation is strong, the output of the horizontal color signal extraction filter 6b is selected. In other cases, the switch circuit 8 is switched to select the horizontal/vertical color signal extraction filter 6c. Thus, the effect of the luminance and chrominance signals for the leakage to each channel is decreased to reduce the dot disturbance.
JP16441487A 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation Pending JPS648794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16441487A JPS648794A (en) 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16441487A JPS648794A (en) 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation

Publications (1)

Publication Number Publication Date
JPS648794A true JPS648794A (en) 1989-01-12

Family

ID=15792691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16441487A Pending JPS648794A (en) 1987-07-01 1987-07-01 Luminance signal chrominance signal separation filter corresponding to picture correlation

Country Status (1)

Country Link
JP (1) JPS648794A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002059029A1 (en) * 2001-01-06 2002-08-01 Robert Nicholas Kaye Wireless control for elevator system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002059029A1 (en) * 2001-01-06 2002-08-01 Robert Nicholas Kaye Wireless control for elevator system

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