AR105290A1 - Preprocesamiento y codificación de píxeles - Google Patents

Preprocesamiento y codificación de píxeles

Info

Publication number
AR105290A1
AR105290A1 ARP160102073A ARP160102073A AR105290A1 AR 105290 A1 AR105290 A1 AR 105290A1 AR P160102073 A ARP160102073 A AR P160102073A AR P160102073 A ARP160102073 A AR P160102073A AR 105290 A1 AR105290 A1 AR 105290A1
Authority
AR
Argentina
Prior art keywords
pixel
luma component
value
color space
color
Prior art date
Application number
ARP160102073A
Other languages
English (en)
Inventor
Dovstam Kristofer
Strm Jacob
Original Assignee
ERICSSON TELEFON AB L M (publ)
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 ERICSSON TELEFON AB L M (publ) filed Critical ERICSSON TELEFON AB L M (publ)
Publication of AR105290A1 publication Critical patent/AR105290A1/es

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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • 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
    • 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
    • H04N19/182—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 pixel
    • 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
    • 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
    • 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
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/86—Camera processing pipelines; Components thereof for processing colour signals for controlling the colour saturation of colour signals, e.g. automatic chroma control circuits

Landscapes

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

Abstract

Un píxel de una imagen se preprocesa determinando al menos un límite de un valor de componente luma del píxel en un segundo color en base a una función de transferencia de un valor de luminancia lineal deseada del píxel en un tercer espacio de color. Se selecciona después para el píxel un valor de componente luma del segundo espacio de color dentro de un intervalo que comprende múltiples valores de componente luma del segundo espacio de color y está acotado por al menos un límite. Un color del píxel se representa por el valor del componente luma y dos valores de componente croma del segundo espacio de color. El preprocesamiento habilita la selección de un adecuado valor de componente luma para el píxel de un modo eficaz desde el punto de vista computacional, restringiendo la cantidad de valores de componente luma que están disponibles para el píxel particular.
ARP160102073A 2015-07-10 2016-07-07 Preprocesamiento y codificación de píxeles AR105290A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201562190906P 2015-07-10 2015-07-10

Publications (1)

Publication Number Publication Date
AR105290A1 true AR105290A1 (es) 2017-09-20

Family

ID=57757454

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP160102073A AR105290A1 (es) 2015-07-10 2016-07-07 Preprocesamiento y codificación de píxeles

Country Status (4)

Country Link
US (1) US10602109B2 (es)
EP (1) EP3320675A4 (es)
AR (1) AR105290A1 (es)
WO (1) WO2017010924A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6320440B2 (ja) * 2015-08-04 2018-05-09 ドルビー ラボラトリーズ ライセンシング コーポレイション ハイダイナミックレンジ信号のための信号再構成
US10547860B2 (en) * 2015-09-09 2020-01-28 Avago Technologies International Sales Pte. Limited Video coding with trade-off between frame rate and chroma fidelity

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5737032A (en) 1995-09-05 1998-04-07 Videotek, Inc. Serial digital video processing with concurrent adjustment in RGB and luminance/color difference
US6400843B1 (en) * 1999-04-22 2002-06-04 Seiko Epson Corporation Color image reproduction with accurate inside-gamut colors and enhanced outside-gamut colors
US7483082B2 (en) * 2005-04-21 2009-01-27 Kolorific, Inc. Method and system for automatic color hue and color saturation adjustment of a pixel from a video source
TW200815995A (en) * 2006-09-22 2008-04-01 Benq Corp Method for processing a backlight image and device thereof
US8233738B2 (en) * 2007-07-30 2012-07-31 Dolby Laboratories Licensing Corporation Enhancing dynamic ranges of images
TWI399100B (zh) * 2009-03-06 2013-06-11 Wintek Corp 影像處理方法
US8483479B2 (en) * 2009-05-11 2013-07-09 Dolby Laboratories Licensing Corporation Light detection, color appearance models, and modifying dynamic range for image display
US20110085086A1 (en) * 2009-10-12 2011-04-14 Miaohong Shi Method for adaptive noise reduction and apparatus thereof
US8605167B2 (en) * 2010-09-01 2013-12-10 Apple Inc. Flexible color space selection for auto-white balance processing
ES2727965T3 (es) * 2011-12-06 2019-10-21 Dolby Laboratories Licensing Corp Dispositivo y método para mejorar el intercambio de datos de imágenes basado en no linealidad de luminancia perceptual a través de diferentes capacidades de visualización
GB2501115B (en) * 2012-04-13 2015-02-18 Canon Kk Methods for segmenting and encoding an image, and corresponding devices
JP5911643B2 (ja) * 2012-10-08 2016-04-27 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 色制約付きの輝度変更画像処理
JP6330507B2 (ja) * 2014-06-19 2018-05-30 ソニー株式会社 画像処理装置及び画像処理方法
US9716871B2 (en) * 2014-09-30 2017-07-25 Apple Inc. YUV signal generation for high dynamic range video content

Also Published As

Publication number Publication date
EP3320675A4 (en) 2019-03-06
WO2017010924A1 (en) 2017-01-19
US20190373233A1 (en) 2019-12-05
US10602109B2 (en) 2020-03-24
EP3320675A1 (en) 2018-05-16

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