§4.8.3高斯低通滤波器(Gaussian Lowpass Filters) Example 3:Gaussian lowpass filtering a b c FIGURE 4.50 (a)Original image(784 X 732 pixels).(b)Result of filtering using a GLPF with Do 100. (c)Result of filtering using a GLPF with Do=80.Note the reduction in fine skin lines in the magnified sections in (b)and (c). Example 3: Gaussian lowpass filtering §4.8.3 高斯低通滤波器 (Gaussian Lowpass Filters)