Title:
イメージ・センサの色補正
Document Type and Number:
Japanese Patent JP4195249
Kind Code:
B2
Abstract:
A method and a color correction circuit ( 2 ) for color correcting a digital color sampled signal. The color correction circuit ( 2 ) has three color input channel processing circuits ( 31,32,33 ) each of the color input channel processing circuits ( 31,32,33 ) has an adder ( 34 ) with a corrected color channel output □ a first multiplied input, a second multiplied input, a third multiplied input and an uncorrected color channel input providing for direct coupling the adder to an output of a color image sensor. The processing circuits ( 31,32,33 ) have a Low Pass Filter ( 35,39,40 ) with a filter input coupled to the uncorrected color channel input. The processing circuits ( 31,32,33 ) each also have input channel multipliers ( 36,42,46 ) and two further multipliers all having an output coupled to inputs of a respective adder ( 34,41,45 ).
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Inventors:
Igor Caliton
Chaminda Weerashinge
Susan Twelves
Chaminda Weerashinge
Susan Twelves
Application Number:
JP2002199984A
Publication Date:
December 10, 2008
Filing Date:
July 09, 2002
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
G06T1/00; H04N1/48; H04N1/60; H04N9/07; H04N9/64; H04N9/73; H04N101/00
Domestic Patent References:
| JP9009270A | ||||
| JP10191371A | ||||
| JP4004693A | ||||
| JP2000350031A |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hideo Tanaka
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hideo Tanaka