1. A system for crack quantification, the system comprising: a storage device; and a processing system connected to the storage device; and a program stored in the storage device, wherein execution of the program by the processor causes the system to perform functions, including functions that: (i) extract, from a multiscale binary crack map, a centerline of an extracted crack using a morphological thinning operation, wherein the centerline include a plurality of centerline pixels; (ii) determine a tangential orientation for each centerline pixel of a plurality of centerline pixels of the multiscale binary crack map, by correlating different orientational kernels with the multiscale binary crack map; (iii) estimate a thickness orientation as the perpendicular orientation to the tangent at each centerline pixel; and (iv) for each centerline pixel, determine a measured thickness as the crack pixels that are aligned with the thickness orientation.