Patent ID: 6324975
Filing Date: 2001-12-04
Classification: B41F,H04N

Abstract:
A color correcting method for converting input image data (Iin) depending on printing conditions into colorimetric data (Icv) with a printing profile (26), thereafter converting the colorimetric data into image data (Iout) depending on proofer conditions with a proofer profile (36), and outputting a proof (HC) from a proofer (16) based on the image data to simulate color reproduction accuracy, comprising the steps of:converting image data (Ich) depending on the printing conditions to output a printing color chart (Cpa) colorimetrically measured when the printing profile is produced, into image data depending on the proofer conditions via said printing profile and said proofer profile;supplying said image data to said proofer to output a proof color chart (Cpa') from said proofer;colorimetrically measuring said proof color chart to generate a printing color reproduction profile (26') to be simulated by said proofer (S14), (S15);determining differences (.DELTA.) between said printing color reproduction profile and said printing profile for an entire color space of said input image data depending on the printing conditions (S16);correcting said colorimetric data with the determined differences, andgenerating a corrected printing profile from said corrected colorimetric data.