Application of the Second Derivative of the Kubelka-Munk Function to the Semiquantitative Analysis of Roman Paintings

摘要

In the present survey,we have analyzed Roman paintings in two rooms in a villa at El Ruedo (Almedinilla,Cordoba,Spain).We used different techniques and procedures,such as X-ray diffraction and diffuse reflectance.We established parameters that define colours in every international system.The diffuse reflectance techniques allowed us to identify the pigments,emphasizing that their mixtures are usually based upon a single chromatic pigment.