Methods and apparatus for calibrating a color display

摘要

Improved methods are provided for calibrating color on a color display coupled to a computer, which are useful for obtaining calibrated data in a virtual proof network for enabling different color devices to render consistent color. Methods involve user interactions with screens on the display to set color display parameters. An apparatus is also provided for calibrating a sensor which may be used for measuring color of a display in one or more of these methods.

主权项

1. A system of colorimetry of a sensor comprising:
a color reference defining a mixture of a plurality of colorants, said mixture providing a spectral distribution of light rendered in a substantially uniform field upon a display; a sensor for measuring color of said reference in one or more channels, in which each of said one or more channels has a spectral response function; and one or more programs executable by a computer system for convolving the spectral response function of each of said one or more channels of said sensor with said spectral distribution defined by said reference to provide one or more values, determining when said one or more values corresponds to the measurement of color of said reference by said sensor to provide one or more color coordinates of said reference in a Standard Observer coordinate system, calculating ratios, as a function of wavelength, of values of one or more color matching functions of the Standard Observer to values of the spectral response function of one or more channels of said sensor, and storing said ratios in memory of the computer system.