Verfahren zur Erstellung von Farbumwandlungstabellen, Druckverfahren, Farbumwandlungsverfahren und Programm zur Erstellung von Farbumwandlungstabellen

Details

Veröffentlichungs-Nr.

EP3799411

Aktenzeichen

EP20197351

Anmeldetag

22. September 2020

Veröffentlichung

14. Dezember 2022

Erteilung

14. Dezember 2022

Rechtsraum

EP

IPC

H04N1/54H04N1/60

Abstract

A granularity check chart is printed (S110) and granularity is evaluated for each area representing a combination of a color value of blue and a color value of cyan and magenta (S120). Thereafter, an unusable region regarding combinations of a color value of blue and a color value of cyan and magenta is determined on the basis of evaluation results (S130). Then, corresponding relationships among a color value of cyan and magenta before spot color separation, a color value of blue after the spot color separation, and a color value of cyan and magenta after the spot color separation are determined so that each combination of a color value of blue and a color value of cyan and magenta after the spot color separation is not included in the unusable region (S140), and a spot color separation LUT is created so that the corresponding relationships are satisfied (S150).

Anmelder

Firma

SCREEN Holdings Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete