BRPI0502086A - Aparelho e método de acentuamento de imagem com saturação adaptável - Google Patents

Aparelho e método de acentuamento de imagem com saturação adaptável

Info

Publication number
BRPI0502086A
BRPI0502086A BR0502086-7A BRPI0502086A BRPI0502086A BR PI0502086 A BRPI0502086 A BR PI0502086A BR PI0502086 A BRPI0502086 A BR PI0502086A BR PI0502086 A BRPI0502086 A BR PI0502086A
Authority
BR
Brazil
Prior art keywords
luminance
saturation
color signal
input color
image
Prior art date
Application number
BR0502086-7A
Other languages
English (en)
Inventor
Moon-Cheol Kim
Jae-Hwan Oh
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of BRPI0502086A publication Critical patent/BRPI0502086A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • 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
    • H04N1/6027—Correction or control of colour gradation or colour contrast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
    • 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
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)

Abstract

"APARELHO E MéTODO DE ACENTUAMENTO DE IMAGEM COM SATURAçãO ADAPTáVEL". A presente invenção refere-se a um aparelho e método de acentuamento de imagem com saturação adaptável que acentua a qualidade de imagem por calcular um nível de saturação pixel por pixel de uma imagem de entrada e ajusta a saturação dos pixels de acordo com o nível de saturação calculado. O aparelho de acentuamento de imagem com saturação adaptável inclui uma unidade de cálculo de nível de saturação para calcular um nível de saturação de um sinal de cor de entrada; uma unidade de cálculo de peso e ganho para calcular um peso de luminância e um ganho de saturação a serem aplicados junto a uma alteração de luminância do sinal de cor de entrada por utilizar o nível de saturação calculado; uma unidade de acentuamento de imagem para ajustar uma luminância do sinal de cor de entrada de acordo com um certo algoritmo e para emitir a luminância ajustada e a luminância do sinal de cor de entrada; e uma unidade de adaptação de luminância para ajustar a luminância do sinal de cor de entrada por utilizar um dentre o peso de luminância e o ganho de saturação, os quais são calculados na unidade de cálculo de peso e ganho, e a luminância ajustada emitida a partir da unidade de acentuamento de imagem. Por conseq³ência, a alteração severa de luminância pode ser impedida durante o mapeamento de escala de cores por ajustar a luminância do sinal de cor de entrada de acordo com o nível de saturação do sinal de cor de entrada.
BR0502086-7A 2004-06-09 2005-06-08 Aparelho e método de acentuamento de imagem com saturação adaptável BRPI0502086A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040042165A KR100621414B1 (ko) 2004-06-09 2004-06-09 채도 적응적인 영상 향상장치 및 그 방법

Publications (1)

Publication Number Publication Date
BRPI0502086A true BRPI0502086A (pt) 2006-01-24

Family

ID=36648466

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0502086-7A BRPI0502086A (pt) 2004-06-09 2005-06-08 Aparelho e método de acentuamento de imagem com saturação adaptável

Country Status (6)

Country Link
US (1) US20050276470A1 (pt)
JP (1) JP2005353069A (pt)
KR (1) KR100621414B1 (pt)
CN (1) CN1708137A (pt)
BR (1) BRPI0502086A (pt)
NL (1) NL1029211C2 (pt)

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CN103763537A (zh) * 2014-01-06 2014-04-30 深圳Tcl新技术有限公司 动态调节显示画质的方法和装置
CN103780797B (zh) * 2014-01-23 2016-08-31 北京京东方光电科技有限公司 一种图像色彩增强的方法和装置
CN104394330B (zh) * 2014-12-08 2017-12-26 深圳先进技术研究院 图像亮度的自动控制方法及自动控制系统
CN106657847B (zh) * 2016-12-14 2019-08-13 广州视源电子科技股份有限公司 图像色彩饱和度调整方法和系统
CN108876742B (zh) * 2018-06-25 2021-04-30 Tcl华星光电技术有限公司 图像色彩增强方法和装置
CN110691227B (zh) * 2018-07-05 2024-04-09 华为技术有限公司 一种视频信号处理方法及装置
TWI698129B (zh) * 2019-03-08 2020-07-01 瑞昱半導體股份有限公司 影像處理方法及其電子裝置
CN111612702B (zh) * 2020-04-07 2023-04-21 杭州电子科技大学 一种颜色迁移的中性色矫正后处理方法
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Also Published As

Publication number Publication date
NL1029211C2 (nl) 2006-05-09
NL1029211A1 (nl) 2005-12-12
CN1708137A (zh) 2005-12-14
KR100621414B1 (ko) 2006-09-08
US20050276470A1 (en) 2005-12-15
KR20050117009A (ko) 2005-12-14
JP2005353069A (ja) 2005-12-22

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2086 DE 28/12/2010.