Visualization of the Wavelet Transform

We have seen that the wavelet transform furnishes a number of data which depends on the algorithm used. We distinguish three classes of algorithms:

- those which do not reduce the sampling. The number of wavelet
coefficients is equal to the number of pixels of the image multiplied
by the number of scales. This is the case if we use the
*à trous*algorithm. - those which furnish a pyramidal set of data
- those which furnish an image