Verfahren zur Umwandlung von Druckdaten in ein Rasterbild

Details

Veröffentlichungs-Nr.

EP2860956

Aktenzeichen

EP13004821

Anmeldetag

8. Oktober 2013

Veröffentlichung

11. Dezember 2019

Erteilung

11. Dezember 2019

Rechtsraum

EP

IPC

H04N1/58G06K15/02

Abstract

A method is provided for converting print data to raster image data. The print data comprise objects with object attributes, whereas the raster image data comprise pixels with a colorant value, indicating an amount of colorant to be applied on a pixel position, and a pixel attribute for controlling a raster image processing step, which is applied in deriving a print signal from the raster image data, A value of a pixel attribute of a pixel within an object is selected in dependence of a value of an object attribute of said object, wherein a first value of a pixel attribute is selected for a pixel within an object having an object attribute with a value text object and an object attribute font size with a value higher than a predetermined threshold and a second value, different from the first value, of a pixel attribute is selected for a pixel within an object having an object attribute with a value text object and an object attribute font size with a value lower than said predetermined threshold. This method enhances the obtained print quality when the print data are received by a print system for printing, as unexpected transitions of print quality characteristices within a text element on a page of the printed output is avoided.

Anmelder

Firma

Canon Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete