BR112018012456A2 - aparelho de transformação de cor, decodificador de imagem hdr, método para calcular cores resultantes, e memória de programa de computador - Google Patents

aparelho de transformação de cor, decodificador de imagem hdr, método para calcular cores resultantes, e memória de programa de computador

Info

Publication number
BR112018012456A2
BR112018012456A2 BR112018012456-7A BR112018012456A BR112018012456A2 BR 112018012456 A2 BR112018012456 A2 BR 112018012456A2 BR 112018012456 A BR112018012456 A BR 112018012456A BR 112018012456 A2 BR112018012456 A2 BR 112018012456A2
Authority
BR
Brazil
Prior art keywords
image
color
screen
colors
input
Prior art date
Application number
BR112018012456-7A
Other languages
English (en)
Other versions
BR112018012456B1 (pt
Inventor
Jozef Willem Mertens Mark
NIJLAND Rutger
Gerardus Rijk Van Mourik Johannes
Yzebrand Tichelaar Johannes
Original Assignee
Koninklijke Philips N.V.
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 Koninklijke Philips N.V. filed Critical Koninklijke Philips N.V.
Publication of BR112018012456A2 publication Critical patent/BR112018012456A2/pt
Publication of BR112018012456B1 publication Critical patent/BR112018012456B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Discrete Mathematics (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

para possibilitar a geração prática e rápida de uma família de classificações hdr de boa aparência para várias telas nas quais pode ser necessário exibir a imagem hdr, a presente invenção refere-se um aparelho de transformação de cor (201) para calcular as cores resultantes (r2, g2, b2) de pixels de uma imagem de saída (im_mdr) para uma tela com um brilho de pico de tela (pb_d) a partir de cores de entrada (r, g, b) de pixels de uma imagem de entrada (im_in) com um código de luma máximo correspondente a um brilho de pico de primeira imagem (pb_im1) que é diferente do brilho de pico de tela, o aparelho de transformação de cor caracterizado por compreender: - uma unidade de determinação de transformação de cor (102; 2501) disposta de modo a determinar uma transformação de cor (tmf; g) compreendendo ao menos uma função de mapeamento de matiz (cc) recebidos através de uma entrada de metadados (116), e sendo que a divisão do brilho de pico de primeira imagem pelo brilho de pico de segunda imagem é maior que 2 ou menor que 1/2; - uma unidade de determinação de fator de escala (200; 2603) disposta de modo a determinar um fator multiplicativo comum resultante (gt; ls), e sendo que o aparelho de transformação de cor (201) compreende adicionalmente: - um multiplicador de alteração de escala (114) disposto para multiplicar cada um dos três componentes de cor de uma representação de cor rgb das cores de entrada com o fator multiplicativo comum resultante (gt).
BR112018012456-7A 2015-12-21 2016-12-21 Aparelho de transformação de cor, decodificador de imagem hdr e método para calcular cores resultantes BR112018012456B1 (pt)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
EP15201561 2015-12-21
EP15201561.6 2015-12-21
EP16167548.3 2016-04-28
EP16167548 2016-04-28
EP16170354.1 2016-05-19
EP16170354 2016-05-19
PCT/EP2016/082107 WO2017108906A1 (en) 2015-12-21 2016-12-21 Optimizing high dynamic range images for particular displays

Publications (2)

Publication Number Publication Date
BR112018012456A2 true BR112018012456A2 (pt) 2018-12-11
BR112018012456B1 BR112018012456B1 (pt) 2023-06-27

Family

ID=

Also Published As

Publication number Publication date
MX2018007486A (es) 2018-09-05
EP3394850B1 (en) 2020-05-13
US20190052908A1 (en) 2019-02-14
CN108431886A (zh) 2018-08-21
JP6871945B2 (ja) 2021-05-19
RU2018126764A (ru) 2020-01-23
WO2017108906A1 (en) 2017-06-29
PT3394850T (pt) 2020-08-14
RU2721762C2 (ru) 2020-05-22
ES2808177T3 (es) 2021-02-25
RU2018126764A3 (pt) 2020-03-23
EP3394850A1 (en) 2018-10-31
CN108431886B (zh) 2021-07-20
ZA201804899B (en) 2020-05-27
US10863201B2 (en) 2020-12-08
JP2019502221A (ja) 2019-01-24

Similar Documents

Publication Publication Date Title
MX2018007486A (es) Optimizacion de imagenes de alto intervalo dinamico para pantallas particulares.
MX2017007451A (es) Optimizacion de imagenes de intervalo dinamico alto para unidades de visualizacion particulares.
US20180160091A1 (en) White balance method of four-color pixel system
US10553151B2 (en) Current control method and apparatus thereof
US20200126268A1 (en) Method and apparatus for generating file color scheme
JP2019534646A5 (ja) 画像処理方法及びユーザデバイス
EP2672376A3 (en) System and method for display mirroring
JP2018508862A5 (pt)
JP2018527687A5 (pt)
US9947258B2 (en) Image processing method and image processing apparatus
KR101961626B1 (ko) 이미지 데이터 처리 방법 및 장치
WO2014064631A3 (en) Assisting a user in selecting a lighting device design
RU2017127149A (ru) Способ и устройство для декодирования цветного изображения
US9460523B1 (en) Image processing device, image processing method, and non-transitory computer-readable medium
BR112022007982A2 (pt) Método para definir, em uma imagem virtual, um respectivo valor de cor e um valor de transparência para uma pluralidade de pixels de imagem virtual e dispositivo de processamento de imagem
JP6485146B2 (ja) 色変換情報生成装置及びプログラム
MX2016015876A (es) Sistema digital y metodo para igualar el color de pintura.
JP2016173477A5 (pt)
JP2014059530A5 (pt)
CN105957495B (zh) 一种rgb信号的处理方法及装置
US11521574B2 (en) Dynamically gamut adjustable displays
Kim et al. Blind: Power saving color transform method for OLED displays
AU2017201441A1 (en) Image processing apparatus, program, and image processing method
US20180102108A1 (en) Image processing apparatus and image processing method
US9401107B2 (en) Image data processing method and device thereof

Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/12/2016, OBSERVADAS AS CONDICOES LEGAIS