Method for visualizing and comparing two images or volumes of data of physical quantities or information referable to the same, recorded by means of suitable equipment, comprising the following steps: - defining which of the two quantities will be represented as colour variations, and which as brightness variations; - defining a chromatic representation system based on three colour coordinates, in which one coordinate represents the brightness and the other two coordinates represent appropriate colour attributes; - applying a suitable transformation to the values of the physical quantities to be represented, so that the values of the physical quantities to be visualized are transformed from the original coordinates into the preselected chromatic coordinates; - transforming the values of the quantities to be visualized from the system of pre-selected coordinates into the chromatic coordinates typical of the pre-selected visualization system; - visualizing the image/volume containing the combination of the two quantities.
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