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1. AU1997027758 - Color imaging system and process with high-speed rendering

Office Australie
Numéro de la demande 27758/97
Date de la demande 30.04.1997
Numéro de publication 1997027758
Date de publication 05.02.1998
Type de publication A
CIB
H04N 1/60
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
NTRANSMISSION D'IMAGES, p.ex. TÉLÉVISION
1Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails
46Systèmes de transmission d'images en couleurs
56Traitement des signaux d'image en couleurs
60Correction ou commande des couleurs
CPC
H04N 1/6019
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
6019using look-up tables
Déposants Harlequin Group PLC
Inventeurs Earl, David John
Masia, Andrew
Revie, William Craig
Schuneman, Thomas A.
Données relatives à la priorité 08643186 03.05.1996 US
Titre
(EN) Color imaging system and process with high-speed rendering
Abrégé
(EN)
A system for processing images includes an image file subsystem providing a source signal representing an input image; a color transformation subsystem coupled to the image file subsystem and accepting as input the source signal and producing a target signal therefrom, and an image forming subsystem coupled to the color transformation subsystem and forming a physical manifestation of the input image in response to the target signal, the color transformation subsystem being configured to establish a memory 'cube' area representative of possible source signals, to define a sub-cube portion of the memory area as representative of the source signal; to determine possible target signals corresponding to the sub-cube portion; and to determine the target signal responsive to the possible target signals. If interpolation is found to be accurate for a mini-cube portion of the sub-cube, truncation or interpolation are used to derive the target signal; otherwise, the target signal is determined directly.

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