# Chapter 3 Code

Figure 3.2 2D filter functions

Figure 3.5 DFT of sinc function

Figure 3.6 DFT of Gaussian

Figure 3.7 Numerical Fresnel transformation of Gaussian

Figure 3.8 Projection of x^2 onto the Haar basis

Figure 3.9 Projection onto Haar basis at various scales

Figure 3.10 Haar scaling and wavelet functions

Figure 3.11 Haar scaling and wavelet functions

Figure 3.12 Averages and differences on Haar basis

Figure 3.13 and 3.14 Averages and differences on Haar basis

Figure 3.15 B-splines

Figure 3.16 B-splines

Figure 3.17 B-spline projections