|Color standards can be very useful in the radiometric
and spectral calibration of various imaging systems, spectrometers, and
hyperspectral sensors that operate in the visible portion of the
spectrum. Diffuse reflectance standards such as those shown in the
picture below have a known spectrum and therefore can be used to validate a sensor's spectral response.
Custom software used with various color charts (see Gretag MacBeth
chart below) are available for calibration and testing the performance
of a sensor system. Each square in the MacBeth chart has xy values
associated with the CIE color system. These serve as reference
coordinates for the evaluation of the sensor performance in color
We also use industry recognized standards (see ISO 12233 chart below) for resolution measurement and characteristics.