Patent ID: 7102785

Claim:
A profile producing method of producing a profile representative of an association between a first color data representative of coordinates on a device-dependence color space dependent on a device mediating between image data including color data and a color image, and a second color data representative coordinates on a common color space independent of devices, said profile producing method comprising: a color association definition obtaining step of obtaining a color a definition defining an association between the first color data representative of coordinates on the device-dependence color space and the second color data representative of coordinates on the common color space; and a profile producing step of producing a profile defining an association between the first color data representative of coordinates on the device-dependence color space and smoothed second color data representative of coordinates on the common color space, in accordance with the color association definition obtained in said color association definition obtaining step, via a smoothing step of smoothing the second color data representative of coordinates on the common color space to the first color data representative of coordinates on the device-dependence color space, wherein the smoothing step further comprising: using the horizontal axis to denote dot % values of a first color data; using the vertical axis to denote chromaticity values of a second color data; obtaining a curve approximating data before the smoothing step; and moving the data before the smoothing step on the curve.