KR20100074684A - 화상처리장치 및 그 제어방법 - Google Patents
화상처리장치 및 그 제어방법 Download PDFInfo
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- KR20100074684A KR20100074684A KR1020080133175A KR20080133175A KR20100074684A KR 20100074684 A KR20100074684 A KR 20100074684A KR 1020080133175 A KR1020080133175 A KR 1020080133175A KR 20080133175 A KR20080133175 A KR 20080133175A KR 20100074684 A KR20100074684 A KR 20100074684A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000003086 colorant Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/6016—Conversion to subtractive colour signals
- H04N1/6019—Conversion to subtractive colour signals using look-up tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/48—Picture signal generators
- H04N1/482—Picture signal generators using the same detector device sequentially for different colour components
- H04N1/484—Picture signal generators using the same detector device sequentially for different colour components with sequential colour illumination of the original
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Image Input (AREA)
- Color Image Communication Systems (AREA)
- Facsimile Heads (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
Description
Claims (13)
- 시분할 다색상 광원을 가지고 단일채널 라인센서를 채용하는 컬러 이미지 센서모듈;각 색상별로 컬러 신호가 라인 단위로 저장되는 메모리부;기준색상을 기준으로 각 색상별로 적어도 하나의 라인으로부터 현재 라인의 컬러 신호를 보간하기 위한 보간 비율을 결정하고, 상기 결정된 보간 비율에 의해 각 색상별로 새로운 컬러 신호를 생성하는 화상처리부를 포함하는 화상처리장치.
- 제1항에 있어서,상기 컬러 이미지 센서모듈은 3색상 광원을 사용하고,상기 화상처리부는 상기 3색상 중 중간의 색상을 기준으로 나머지 색상을 보간하는 화상처리장치.
- 제2항에 있어서,상기 3색상은 RGB 색상인 화상처리장치.
- 제3항에 있어서,상기 기준색상은 R, G 및 B 중 어느 하나인 화상처리장치.
- 제4항에 있어서,상기 화상처리부는 다음의 식에 의해 상기 보간비율을 결정하는 화상처리장치.Ri′ = 2/3 * Ri + 1/3 * R(i+1)Gi′ = GiBi′ = 1/3 * B(i-1) + 2/3 * Bi
- 제4항에 있어서,상기 화상처리부는 다음의 식에 의해 상기 보간비율을 결정하는 화상처리장치.Ri′ = RiGi′ = 2/3 * Gi + 1/3 * G(i-1)Bi′ = 1/3 * Bi + 2/3 * B(i-1)
- 제4항에 있어서,상기 화상처리부는 다음의 식에 의해 상기 보간비율을 결정하는 화상처리장치.Ri′ = 1/6 *R(i-1) + 5/6 * RiGi′ = 1/2 * G(i-1) + 1/2 * GiBi′ = 5/6 * B(i-1) + 1/6 * Bi
- 제4항에 있어서,상기 화상처리부는 다음의 식에 의해 상기 보간비율을 결정하는 화상처리장치.Ri′ = 3/10 *R(i-1) + 7/10 * RiGi′ = 1/6 * G(i-1) + 4/6 * Gi + 1/6 * G(i+1)Bi′ = 7/10 * Bi + 3/10 * B(i+1)
- 시분할 다색상 광원을 가지고 단일채널 라인센서를 채용하는 컬러 이미지 센서모듈을 구비한 화상처리장치의 제어방법에 있어서,원고를 스캔하여 각 색상별로 컬러 신호를 라인 단위로 저장하고;기준색상을 기준으로 각 색상별로 적어도 한 라인으로부터 현재 라인의 컬러 신호를 보간하기 위한 보간 비율을 결정하고;상기 결정된 보간 비율에 의해 각 색상별로 새로운 컬러 신호를 생성하는 화상처리장치의 제어방법.
- 제9항에 있어서,상기 컬러 이미지 센서모듈은 RGB 3색상 광원을 사용하고,상기 보간 비율 결정 전에 상기 R,G,B 중 어느 하나를 상기 기준색상으로 설정하는 화상처리장치의 제어방법..
- 제10항에 있어서,상기 보간 비율을 다음의 식에 의해 결정되는 화상처리장치의 제어방법.Ri′ = RiGi′ = 2/3 * Gi + 1/3 * G(i-1)Bi′ = 1/3 * Bi + 2/3 * B(i-1)
- 제10항에 있어서,상기 보간 비율을 다음의 식에 의해 결정되는 화상처리장치의 제어방법.Ri′ = 1/6 *R(i-1) + 5/6 * RiGi′ = 1/2 * G(i-1) + 1/2 * GiBi′ = 5/6 * B(i-1) + 1/6 * Bi
- 제10항에 있어서,상기 보간 비율을 다음의 식에 의해 결정되는 화상처리장치의 제어방법.Ri′ = 3/10 *R(i-1) + 7/10 * RiGi′ = 1/6 * G(i-1) + 4/6 * Gi + 1/6 * G(i+1)Bi′ = 7/10 * Bi + 3/10 * B(i+1)
Priority Applications (3)
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KR1020080133175A KR101590881B1 (ko) | 2008-12-24 | 2008-12-24 | 화상처리장치 및 그 제어방법 |
US12/642,358 US8363294B2 (en) | 2008-12-24 | 2009-12-18 | Image processing apparatus and method of controlling the same |
US13/729,461 US8717649B2 (en) | 2008-12-24 | 2012-12-28 | Image processing apparatus and method of controlling the same |
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KR1020080133175A KR101590881B1 (ko) | 2008-12-24 | 2008-12-24 | 화상처리장치 및 그 제어방법 |
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KR20100074684A true KR20100074684A (ko) | 2010-07-02 |
KR101590881B1 KR101590881B1 (ko) | 2016-02-02 |
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US20130120812A1 (en) | 2013-05-16 |
KR101590881B1 (ko) | 2016-02-02 |
US8363294B2 (en) | 2013-01-29 |
US20100157396A1 (en) | 2010-06-24 |
US8717649B2 (en) | 2014-05-06 |
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