pwelch2

This function implements a 2D WOSA Power Spectral Density estimator.

Function that implements the WOSA estimator in 2 dimensions

Input parameters:

• image: image of which to estimate the PSD.
• window_size: window size, can be an integer or a vector, if window_size is an integer the window used is square window_size * window_size, otherwise if window_size is a row vector the window is rectangular with width = window_size(1, 2) and height = window_size(1, 1)
• overlap: overlap level of windows (0 <= overlap < 1)
• window_handle: is the handle to the function for creating the window used to select the segments on which to estimate the PSD using the periodogram, an example is:

eg.: window_handle = @(x) rectwin(x)

to use a rectangular window

eg.: window_handle = @(x) hamming(x)

to use a Hamming window

Output

• [WOSA] : PSD estimated with 2D WOSA estimator