In this work we have analysed the application of the Laser Beam Induced Current technique to obtain high resolution images of Dye Sensitized Solar Cells (DSSC). While this technique is widely used in the study of solar cells based on solid-state technology, its use is not so extended on DSSCs because of problems arising from the interaction between a focused laser beam and the biphase structure of such devices. We have studied the cell response to focused radiation and we have found that part of the current generated by a DSSC is caused by the activation of the radiated point while another part is generated by those points previously illuminated. Both parts of the signal have been analysed from a mathematical point of view to implement an algorithm for improving the LBIC images. When applied, the original LBIC images improve in clearness so that morphological differences can now be clearly distinguished.