Determination of Geometric Parameters of Cracks in Concrete by Image Processing

Figure 6

Cracks on the wall: (a) a full color image of cracks on the wall of a building, (b) pixel intensity distribution of the crack number 1 in both 2D and 3D forms, and (c) pixel intensity distribution of the crack number 2 in both 2D and 3D forms. The contrast of the crack image is enhanced with use of a hyperspectral filter with the central wavelength of 580 nm.

(a)

(b)

(c)