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1. WO2019221715 - COLOR TABLES

Publication Number WO/2019/221715
Publication Date 21.11.2019
International Application No. PCT/US2018/032807
International Filing Date 15.05.2018
IPC
H04N 1/60 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46Colour picture communication systems
56Processing of colour picture signals
60Colour correction or control
G01J 3/46 2006.1
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3Spectrometry; Spectrophotometry; Monochromators; Measuring colours
46Measurement of colour; Colour measuring devices, e.g. colorimeters
CPC
G01J 3/462
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3Spectrometry; Spectrophotometry; Monochromators; Measuring colours
46Measurement of colour; Colour measuring devices, e.g. colorimeters
462Computing operations in or between colour spaces; Colour management systems
H04N 1/6016
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46Colour picture communication systems
56Processing of colour picture signals
60Colour correction or control
6016Conversion to subtractive colour signals
H04N 1/603
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46Colour picture communication systems
56Processing of colour picture signals
60Colour correction or control
603controlled by characteristics of the picture signal generator or the picture reproducer
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • SCHRAMM, Morgan, T.
  • BHASKAR, Ranjit
Agents
  • HOOPES, Benjamin
  • BILLIG, Patrick G.
  • LUND, Scott A.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COLOR TABLES
(FR) TABLES DE COULEURS
Abstract
(EN) A color table is modulated. The color table includes nodes that correspond with a color input in a first color space and provides a print substance formulation in a second color space. For a set of the nodes, a determination is made as to whether a color amount based on the print substance formulation is outside of threshold value. For each node in which the color amount for the node is outside the threshold value, the print substance formulation is replaced with a replacement print substance formulation having a color amount that is within the threshold value.
(FR) La présente invention concerne un table de couleurs qui est modulée. La table de couleurs comprend des nœuds qui correspondent à une entrée de couleur dans un premier espace de couleur et fournit une formulation de substance d'impression dans un second espace de couleur. Pour un ensemble des nœuds, une détermination est faite afin de savoir si une quantité de couleurs basée sur la formulation de substance d'impression est en-dehors d'une valeur seuil. Pour chaque nœud dans lequel la quantité de couleur pour le nœud est en dehors de la valeur seuil, la formulation de substance d'impression est remplacée par une formulation de substance d'impression de remplacement ayant une quantité de couleur qui est à l'intérieur de la valeur seuil.
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