Abstract: “A method is provided for determining color coordinates (XYZ) of light emitted by each emitter (R, G) of a matrix display (M), using already available information about color coordinates (XYZ) for similar light emitters with similar color characteristics other than those present in the matrix display. The method includes acquiring at least two intensity images of each emitter of the matrix with different filtering, at least one of the intensity images being acquired with filtering by at least one of said acquisition filters, and determining for each emitter of the matrix estimated color coordinates of the emitter based on the already available information and the intensity images.