Techniques are described for determining the quality of a nerve graft by assessing quantitative structural characteristics of the nerve graft. Aspects of the techniques include obtaining an image identifying laminin-containing tissue in the nerve graft； creating a transformed image using a transformation function of an image processing application on the image； using an analysis function of the image processing application, analyzing the transformed image to identify one or more structures in accordance with one or more recognition criteria； and determining one or more structural characteristics of the nerve graft derived from a measurement of the one or more structures.
