IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS AND INKJET PRINTING METHOD

The present invention suppresses a bronzing phenomenon that occurs easily in inkjet printing that uses pigment ink, and minimizes other effects on the image quality by particularly minimizing the change in gray balance. Of at least first and second achromatic inks having different densities of pigme...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAMASAKI YUJI, YAZAWA TAKESHI, IRITANI HINAKO, SEKI SATOSHI, KONNO YUJI, NAKATA EIICHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention suppresses a bronzing phenomenon that occurs easily in inkjet printing that uses pigment ink, and minimizes other effects on the image quality by particularly minimizing the change in gray balance. Of at least first and second achromatic inks having different densities of pigment coloring material, the amount of resin in the second achromatic ink (light gray ink) having the lowest density of coloring material is increased, and on the achromatic color axis, a specified amount of light gray ink is used up to gradations other than highlighted areas, and light gray ink is printed in scans after all the inks that include the second achromatic ink. As a result, it is possible to reduce the bronzing phenomenon.