Back to results
US 2009/0153887 A1Published application
Apparatus for printing consistent spot colors
AssigneeXerox Corporation
InventorsGuo-Yau LIN, Timothy John MOUSAW, Sharon Anne KRUEGER, Mark VAN DELLON, Kenneth R. MILLER
Life of this patent
Estimating the term…
Abstract
RE A color imaging system is provided with a tagging system that tags spot color pixels in a page description language differently from non-spot color pixels. These tags are generated in a digital front end and stored along with contone values in a data structure. In addition to the tags, a rendering hint remap table and a user TRC remap table are used to bypass applying TRCs to spot colors.
Claims21
An apparatus for printing consistent spot colors, comprising:
- a remap mechanism for bypassing application of a user tone reproduction curve (TRC) for at least one spot color in a color image by using at least one tag, associated with the at least one spot color, in image data;
- a digital front end, including the remap mechanism, for processing the image data to generate printer data, the printer data affecting the bypass of the user TRC for the at least one spot color;
- and
- an image output terminal in communication with the digital front end for receiving the printer data and generating the color image, resulting in the at least one spot color in the color image not being effected by the user TRC.
1 more element
A method for printing consistent sport colors, comprising:
- bypassing application of a user tone reproduction curve (TRC) for at least one spot color in a color image with a remap mechanism by using at least one tag associated with the at least one spot color in image data;
- processing the image data to generate printer data with a digital front end including the remap mechanism, the printer data affecting the bypass of the user TRC for the at least one spot color;
- receiving the printer data with an image output terminal in communication with the digital front end and generating the color image, resulting in the at least one spot color in the color image not being effected by the user TRC.
Dependencies are inferred from the claim text.