초록 ▼

The colorimetric parameters of a color sample (42) that is illuminated by a reference light are processed for reproduction by a video monitor (20) or the like. A color filter assembly (40) and associated sensor (28) are used to generate signals indicative of the colorimetric parameters of the illumi

The colorimetric parameters of a color sample (42) that is illuminated by a reference light are processed for reproduction by a video monitor (20) or the like. A color filter assembly (40) and associated sensor (28) are used to generate signals indicative of the colorimetric parameters of the illuminated color sample (42). A computer (24) transforms the signals into a form suitable for driving a video monitor (20) to reproduce the color sample (42) on the monitor screen.

대표청구항 ▼

A method for processing colorimetric parameters of a color sample for reproducing the color of the sample on a video monitor screen, wherein the color sample is illuminated by a reference light having tristimulus values and is definable by a primary intensity vector denoting relative first color, se

A method for processing colorimetric parameters of a color sample for reproducing the color of the sample on a video monitor screen, wherein the color sample is illuminated by a reference light having tristimulus values and is definable by a primary intensity vector denoting relative first color, second color and third color luminous intensity levels of the illuminated color sample, and wherein the video monitor includes a plurality of phosphor sets, the luminous intensity of the phosphor sets being variable to produce colors on the monitor screen, any particular color produced on the monitor screen being definable by a phosphor intensity vector that denotes the relative values of the luminous intensity levels of the phosphor sets at the time the particular color is produced on the monitor screen, the method comprising the steps of: (a) directing through each of three color filters a source light having tristimulus values representing a standard CIE illuminant, and generating a color filters matrix representative of the relative intensity contributions of each filter color to the tristimulus values of the source light; (b) directing the reference light through each of the color filters, and generating a reference primary vector representative of the relative primary intensity contribution of each filter color to the reference light; (c) weighting the color filters matrix to reflect the differences between the tristimulus values of the source light and the tristimulus values of the reference light; (d)detecting the primary intensity vector of the color sample; and (e) multiplying the detected primary intensity vector of the color sample and the weighted color filters matrix to generate the tristimulus values of the color sample.