DEVICE AND METHOD FOR PREPARING COLOR CONVERSION TABLE, RECORDING MEDIUM RECORDED WITH COLOR CONVERSION TABLE PREPARATION PROGRAM AND PROFILE PREPARING DEVICE FOR PREPARING PROFILE ON THE BASIS OF COLOR CONVERSION TABLE PREPARED BY THE DEVICE OR METHOD

Japanese Patent JP3912196

B2

PROBLEM TO BE SOLVED: To provide a method for simply preparing a color conversion table with high accuracy without depending upon the number of colors and the quality of an object by photographing the object with a plurality of colors.
SOLUTION: When a digital still camera photographs a color chart with reference exposure and with a λ-hold shift amount from the reference exposure, two types of chart image data having information having different YCbCr color specification values are generated. A relation determining part of a printer that has received the data writes a correspondence relation between the YCbCr color specification values of chart image data and a reference color value of reference image data in a first table and also writes a correspondence relation between the YCbCr color specification values of the chart image data and modified reference image data generated by reflecting the difference of λ-hold exposure on the reference image data in a second table. A color conversion table preparing part prepares a second color conversion table between a YCbCr color space and an L*a*b* color space on the basis of the two correspondence relations written in the tables.

Makoto Fujino

JP2002172239A

May 09, 2007

June 13, 2002

Click for automatic bibliography generation  

Seiko Epson Corporation

G06T1/00; H04N9/64; H04N1/46; H04N1/60; H04N9/04; (IPC1-7): H04N9/64; G06T1/00; H04N1/46; H04N1/60; H04N9/04

JP2001194238A
JP2002044475A

Meisei International Patent Office

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