Využití kombinace Neugebauerových primárních barev naměřených a určených pomocí Kubelkovy-Munkovy teorie pro spektrální reprodukci s využitím spektrálního Neugebauerova a modifikovaného Yule-Nielsenova modelu

Bc. Jana Blahová

Master's thesis

Evaluating the use of mixed Neugebauer Primaries, measured and estimated by Kubelka-Munk Theory, in spectral reproduction using Spectral Neugebauer model and Yule-Nielsen modification

Abstract:

To improve the accuracy in the prediction of reflection spectra, new methods to estimate primaries for the spectral Neugebauer and Yule-Nielsen spectral Neugebauer models have recently been proposed such as the mixed measured/estimated overprints. This study focuses on comparing three different approaches to all the colorant combinations produced by the printer are considered, that is, measured NPs, estimated overprints by Kubelka-Munk theory and mixed overprints of NPs. Two 4-channel laser printers (Xerox Phaser 6250DP and Xerox Phaser 7760GX) and five types of paper were combined and evaluated with spectral metrics such as the CIE color differences (ÄEab, ÄE94 and ÄE00) and spectral curves difference metrics (RMSE, GFC).

Abstract:

Ke zlep.eni p.esnosti predikce reflexniho spektra byly navr.eny nove metody odhadu primarnich barev na zaklad. kombinace m..enych/odhadnutych p.etisk. ve Spektralnim Neugebauerovem a Yule-Nielsenovem spektralnim Neugebauerovem modelu. Tato diplomova prace se zam..uje na porovnani t.ech p.istup. v ur.eni v.ech barvovych kombinaci produkovanych tiskovym strojem. Jedna se o m..ene Neugebauerovy primarni barvy (NPs), odhadnute p.etisky (NPs) Kubelkovou-Munkovou teorii a kombinovane p.etisky (NPs). P.esnost modelovani dvou 4-barvovych laserovych tiskaren (Xerox Phaser 6250DP a Xerox Phaser 7760GX) v kombinaci s 5 r.znymi typy papir. byla ohodnocena na zaklad. CIE barvovych odchylek (?˘Eab, ?˘E94 a ?˘E00) a spektralnich odchylek (RMSE, GFC).

Keywords

barevný tisk, spektrální Neugebauerův model, Yule-Nielsenův modifikovaný spektrální Neugebauerův model, Neugebauerovy primární barvy, Kubelka-Munkova teorie, kombinované přetisky.

Language used: English

Date on which the thesis was submitted / produced: 4. 5. 2012

Thesis defence

• Date of defence: 7. 6. 2012
• Supervisor: Ing. Bohumil Jašúrek, Ph.D.

University of Pardubice

Faculty of Chemical Technology

Master programme / field:
Graphic Arts and Printing Technology / Graphic Arts and Printing Technology