Patent ID: 7911613
Filing Date: 2011-03-22
Classification: G01J,G01N,H04N

Abstract:
1. A method of predicting colors of a print produced by a printing press, comprising the steps of: using at least one colorimeter to perform: colorimetrically measuring a color chart prior to dry-down, which is generated based on device-dependent data by the printing press, thereby obtaining pre-dry-down colorimetric values; and colorimetrically measuring the color chart subsequent to dry-down, thereby obtaining post-dry-down colorimetric values; and using at least one processor to perform: calculating colorimetric value differences with respect to said device-dependent data between said pre-dry-down colorimetric values and said post-dry-down colorimetric values; and calculating colorimetric value differences with respect to arbitrary device-dependent data by interpolating the first-mentioned colorimetric value differences, and calculating pre-dry-down colorimetric values with respect to said arbitrary device-dependent data, using the calculated second-mentioned colorimetric value differences and post-dry-down colorimetric values with respect to said arbitrary device-dependent data; and predicting the colors of said print prior to pre-dry-down based on the calculated pre-dry-down colorimetric values with respect to the arbitrary device-dependent data.