"A method for the partition of an interferogram used in the window fringe demodulation (WFPD) technique is presented. This algorithm can autonomously divide an interferogram based on the maximum number of fringes desired in each window. Basically, this consists in obtaining the minimum number of sub images consistent with the number of fringes allowed. Each sub-image will serve as an input to the Simulated Annealing algorithm, which estimates the phase map from a parametric function, and its parameters are obtained by means of an optimization process."