MX338258B - Procesamiento de imagenes por cambio de luminancia con restricciones de color. - Google Patents

Procesamiento de imagenes por cambio de luminancia con restricciones de color.

Info

Publication number
MX338258B
MX338258B MX2014013221A MX2014013221A MX338258B MX 338258 B MX338258 B MX 338258B MX 2014013221 A MX2014013221 A MX 2014013221A MX 2014013221 A MX2014013221 A MX 2014013221A MX 338258 B MX338258 B MX 338258B
Authority
MX
Mexico
Prior art keywords
color
luminance
input
dynamic range
tone mapping
Prior art date
Application number
MX2014013221A
Other languages
English (en)
Other versions
MX2014013221A (es
Inventor
Renatus Josephus Van Der Vleuten
Original Assignee
Koninkl Philips Nv
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47008391&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX338258(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of MX2014013221A publication Critical patent/MX2014013221A/es
Publication of MX338258B publication Critical patent/MX338258B/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • 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
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/10—Selection of transformation methods according to the characteristics of the input images
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • 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
    • 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
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • 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
    • 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
    • G09G2320/066—Adjustment of display parameters for control of contrast
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

Para ser capaz de realizar una buena mapeo de color entre codificaciones de color para gamas un margen dinámico de luminancia considerablemente diferente en tanto que no se introduzcan errores significativos de color, se describe un aparato de procesamiento de color de imagen (201) arreglado para transformar un color de entrada (L, x, y) de un pixel especificado en una representación de color que corresponde a un margen dinámico de luminancia en un color de salida (L*, x, y) de un pixel especificado en una representación de color que corresponde a un segundo margen dinámico de luminancia, el primero y segundo márgenes dinámicos que difieren en extensión por al menos un factor multiplicativo de 1.5, que comprende una unidad de deformación de mapeo tonal (203) arreglada para determinar con base en un mapeo tonal de entrada (301) y una cantidad linealmente relacionada a la luminancia (L) del color de entrada, una luminancia de salida ajustada (L*, 309), en donde la determinación se arregla de modo que la luminancia de salida ajustada (L*, 309) obtenida al aplicar el mapeo tonal de entrada a la luminancia de entrada (L) de todas las posibles luminancias de entrada en su extensión de valores validos [0, 1] que da la salida más alta (L*, L HDR), no es mayor que una luminancia máxima Lmax(x, y) que para las coordenadas cromáticas (x, y) del color de entrada se puede lograr de manera máxima en la gama que corresponde al segundo margen dinámico de luminancia para aquellas coordenadas cromáticas (x, y).
MX2014013221A 2012-10-08 2013-09-17 Procesamiento de imagenes por cambio de luminancia con restricciones de color. MX338258B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12187572 2012-10-08
PCT/EP2013/069203 WO2014056679A1 (en) 2012-10-08 2013-09-17 Luminance changing image processing with color constraints

Publications (2)

Publication Number Publication Date
MX2014013221A MX2014013221A (es) 2015-02-18
MX338258B true MX338258B (es) 2016-04-11

Family

ID=47008391

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014013221A MX338258B (es) 2012-10-08 2013-09-17 Procesamiento de imagenes por cambio de luminancia con restricciones de color.

Country Status (12)

Country Link
US (1) US9230509B2 (es)
EP (1) EP2836983B1 (es)
JP (1) JP5911643B2 (es)
KR (1) KR102105645B1 (es)
CN (1) CN104364820B (es)
BR (1) BR112014027815B1 (es)
ES (1) ES2641371T3 (es)
MX (1) MX338258B (es)
PL (1) PL2836983T3 (es)
RU (1) RU2642335C2 (es)
WO (1) WO2014056679A1 (es)
ZA (1) ZA201407903B (es)

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US20150221280A1 (en) 2015-08-06
EP2836983A1 (en) 2015-02-18
BR112014027815A2 (pt) 2017-06-27
CN104364820B (zh) 2018-04-10
RU2014143972A (ru) 2016-11-27
CN104364820A (zh) 2015-02-18
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