Part of my assignment about signal processing says the following:
- Compute the Discrete Wavelet Transform for the input signals
- Group the wavelet coefficients in trees growing across scales
- Classify the trees in high- and low-energy trees
I've managed to implement my own DWT, calculate the coefficients and group them in trees.
Now I'm left with calculating the energy of the wavelet coefficients.
Question: How to calculate the energy of wavelet coefficients?
I am doing this in Matlab.