The paper considers the possibility of realizing an image
spectro-chroma meter by a scientific grade CCD camera and a
tunable narrow band filter bench. The presented system allows at recording a multi spectral imaging of the scene, acting
as a spectroradiometer with a high spatial resolution and a spectral resolution depending on the bandwidth of the filters.
The characterization of the constituting components is briefly described and some evaluations of their performances are
presented. In particular, the spectral transmission coefficients of the filters are evaluated together with the power spectral
responsivity of the CCD camera. As an example of application, the light reflected by coloured sample is considered and
both the spectral radiance and the correspondent colour coordinates are determined. A comparison between
measurements obtained by the CCD spectro-chroma meter and by a spectroradiometer allows at quantifying the
performance of the new system: for every coloured light, the measured spectral radiance differs less than 2%, so as the
luminance value, when a light approximating the Illuminant A is considered. For the same white source, the errors on x
and y coordinates are always less 0.002.The system is also used to measure the spectral reflection coefficient of the same
coloured samples obtaining performances close to the ones of a good spectroradiometer. The error on spectral reflectivity
is about 5% and the error on the CIE 1976 (L*a*b*) coordinates is of the order of ΔE*=3 under the Illuminant A.