Algorithm 2 Filtering scales

Input: $scales$ = vector of scales determined from FFT, $decay$ 1: $scale{s}_{filtered}=\left[scales\left[0\right]\right]$ 2: $n=len\left(scales\right)$ 3: for i in range(1,n): 4:    if $scale{s}_{filtered}[-1]/scales\left[i\right]>=decay$: 5:       $scale{s}_{filtered}.append\left(scales\left[i\right]\right)$ 6: return: $scale{s}_{filtered}$