702076.fig.004a
(a)
702076.fig.004b
(b)
702076.fig.004c
(c)
Figure 4: Gabor ear image: (a) the real part of the Gabor kernel; (b) the magnitude spectrum of the Gabor feature of the ear image on 4 orientations; (c) the magnitude spectrum of the Gabor feature of the ear image on 8 orientations.