Method of characterizing an imaging system
AssigneeEastman Kodak Company
InventorChristopher J. Edge
Life of this patent
Estimating the term…
Abstract
A method of characterizing an imaging system is described includes printing a color chart having a plurality of predetermined color patches; measuring the color patches to obtain colorimetric data; initializing a Neugebauer model with the Neugebauer solids of said colorimetric data; optimizing the global parameters of the Neugebauer model; optimizing the parameters associated with Demichel terms based on the Neugebauer primary associated with the Demichel term; optimizing parameters that vary with device coordinates; and creating a characterization file for the imaging system.
Claims5
A method of replicating color images created on a first printer on a second printer or monitor comprising:
- printing a color chart having a plurality of predetermined color patches with the first printer;
- measuring said color patches to obtain colorimetric data;
- transmitting the colorimetric data to a computer;
- initializing a Neugebauer model with said colorimetric data;
- optimizing global parameters of the Neugebauer model on the computer;
- optimizing parameters of the Neugebauer model associated with Neugebauer primaries;
- optimizing parameters of the Neugebauer model that vary with the first printer coordinates;
- generating a first characterization file for the first printer;
- obtaining a second characterization file for the second printer or monitor;
- obtaining image data for first image to be replicated;
- converting the image data from the first characterization to the second characterization;
- and
- creating second image with the converted image data on the second printer or the monitor.
A method of proofing color images to be printed on a first printer on a second printer or monitor comprising:
- printing a color chart having a plurality of predetermined color patches with the first printer;
- measuring said color patches to obtain colorimetric data;
- transmitting the colorimetric data to a computer;
- initializing a Neugebauer model with said colorimetric data;
- optimizing global parameters of the Neugebauer model on the computer;
- optimizing parameters of the Neugebauer model associated with Neugebauer primaries;
- optimizing parameters of the Neugebauer model that vary with the first printer coordinates;
- generating a first characterization file for the first printer;
- obtaining a second characterization file for the second printer or monitor;
- obtaining image data for an image to be proofed;
- converting the image data from the first characterization to the second characterization;
- and
- creating a second image with the converted image data on the second printer or the monitor.
Dependencies are inferred from the claim text.