This paper proposes a methodology for the characterization of the temporal behavior of photoelasticity image sequences. The multilayer plastic films were deformed at different temperatures (20°C y 60°C). The analysis of the variation was observed in a plane polariscope because the specimen present birefringent behavior which generates colors of interference in the images captured. The evolution temporal intensities were analyzed using similarity metrics, color demodulation, phase shifting, color-thickness learning algorithms and stress maps. It was found that the films show changes in phase retardation, thickness and stress, thus the photoelasticity describes non-homogeneous spatial and temporal variations on the surface of the specimens analyzed