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1. (WO2018031923) GENERATION OF SPOT COLORS WITH REDUCED INK SUBSETS
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Pub. No.: WO/2018/031923 International Application No.: PCT/US2017/046571
Publication Date: 15.02.2018 International Filing Date: 11.08.2017
IPC:
H04N 1/60 (2006.01) ,H04N 1/40 (2006.01) ,H04N 1/46 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46
Colour picture communication systems
56
Processing of colour picture signals
60
Colour correction or control
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
40
Picture signal circuits
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46
Colour picture communication systems
Applicants:
ELECTRONICS FOR IMAGING, INC. [US/US]; 6750 Dumbarton Circle Fremont, CA 94555, US
Inventors:
BOLL, Harold; US
Agent:
GLENN, Michael, A.; US
Priority Data:
15/599,40518.05.2017US
62/373,91811.08.2016US
Title (EN) GENERATION OF SPOT COLORS WITH REDUCED INK SUBSETS
(FR) GÉNÉRATION DE COULEURS DE POINTS AVEC DES SOUS-ENSEMBLES D'ENCRE RÉDUITS
Abstract:
(EN) Optimization of ink recipes for spot colors in printers. Often, ICC Profiles are optimized for smooth rendering of images; thus, color recipes often contain more inks than are required for matching a color when generated from a Profile. When transitioning from one color to another, it is better to make smaller changes in inkings. This goal is not served when printing spot colors. Spot colors are often single, solid colors that do not vary in gradients from one to another. Herein is a discussion including dividing an N-ink set into subsets, generating an ink recipe for a desired recipe in each ink subset, and selecting a subset based on predetermined criteria. Where a spot color is out of Gamut, that color is mapped to the Gamut.
(FR) La présente invention concerne l'optimisation des recettes d'encre pour les tons directs dans les imprimantes. Souvent, les profils ICC sont optimisés pour un rendu uniforme des images ; ainsi, les recettes de couleur contiennent souvent plus d'encres que celles requises pour faire correspondre une couleur en cas de génération à partir d'un profil. Lors du passage d'une couleur à une autre, il vaut mieux apporter des modifications moins importantes aux encrages. Cet objectif n'est pas desservi lors de l'impression de tons directs. Les tons directs sont souvent des couleurs solides uniques dont le gradient d'une couleur à l'autre ne varie pas. L'invention concerne une discussion portant sur la division d'un ensemble de N-encres en sous-ensembles, la génération d'une recette d'encre pour une recette désirée dans chaque sous-ensemble d'encres, et la sélection d'un sous-ensemble sur la base de critères prédéterminés. Lorsqu'un ton direct est hors de la gamme, cette couleur est mise en correspondance avec la gamme de couleurs.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)