Patent ID: 7414633
Filing Date: 2008-08-19
Classification: G09G,H04N

Abstract:
1. A color characteristic description apparatus for producing color characteristic data for use when supplied image data is converted into output image data and for producing an identifier, the color characteristic description apparatus comprising: multidimensional lookup table producing means for producing a multidimensional lookup table by using said identifier to select a table development method suitable for color characteristics associated with a device producing the image data, the multidimensional lookup table being produced from a separate lookup table having only color characteristic points representing the supplied image data, the color characteristic points representing a relationship between a first point and a final point and any points in between the supplied image data and output image data; and multidimensional lookup table compression means for compressing said multidimensional lookup table, wherein the color characteristic data, which is produced by the color characteristic description apparatus, includes the compressed multidimensional lookup table and the identifier, the identifier being an element of the color characteristic data which identifies a restoring method for restoring the compressed multidimensional lookup table.