Function MORLET_2D_NODC

Package

filters

Short description

computes the 2-D elliptic Morlet filter given a set of

Usage

    gab = MORLET_2D_NODC(N, M, sigma, slant, xi, theta, offset)

Input

    N (numeric): Width of the filter.
    M (numeric): Height of the filter.
    sigma (numeric): Standard deviation of the envelope.
    slant (numeric): Eccentricity of the elliptic envelope.
       (the smaller slant, the larger angular resolution).
    xi (numeric): The frequency peak.
    theta (numeric): Orientation in radians of the filter.
    offset (numeric, optional): 2-D vector reprensting the offset location 
       (default [0 0]).

Output

    gab (numeric): N-by-M matrix representing the gabor filter in spatial
       domain.

Description

    Compute a Morlet wavelet in Fourier domain. 
    Morlet wavelets have a 0 DC component.

See also

List of all packages