COLOR PATCH PROVIDING METHOD, COLOR CORRECTION DATA PROVIDING METHOD, ELECTRONIC IMAGE DATA PROVIDING METHOD, IMAGE FORMING METHOD AND SYSTEM OF THESE

摘要

PROBLEM TO BE SOLVED: To efficiently guarantee color reproduction for a specified original.

SOLUTION: When an accepting unit 52 accepts a raster image, a histogram generating unit 54 generates a histogram. A color patch generating unit 56 extracts a color having high usage frequency in the original image on the basis of the histogram generated in this unit 54, and the extracted color is used as a color patch. This color patch is outputted on a sheet in a printer unit to create a color chart.

COPYRIGHT: (C)2006,JPO&NCIPI