Method comprising the steps of: choosing a set of calibration colors within said scene, measuring each calibration color of said set such as to get a set of XYZ to represent each calibration color in the given colorimetric color space, by using said image capture device, capturing calibration colors such as to get a set of Raw RGB values to represent each calibration color, estimating a parametric color transform such that any set of Raw RGB values corresponding to a calibration color is transformed into a set of XYZ values corresponding to the same calibration color, building a color calibration transform by the concatenation of the parametric color transform with an output color transform.