Elliptic fourier for shape analysis: example1.m - File Exchange

Code covered by the BSD License

calc_dc_components(ai) Calculate DC components.
calc_harmonic_coefficients(ai... This function will calculate the n-th set of four harmonic coefficients.
calc_traversal_dist(ai) This function will generate position coordinates of chain code (ai). Number of
calc_traversal_time(ai) Traversal time is defined as accumulated time consumed by every
fourier_approx(ai, n, m, norm... This function will generate position coordinates of fourier approximation of
plot_chain_code(ai, color, li... Plot chain code with certain color and line width
plot_fourier_approx(ai, n, m,... This function will plot the fourier approximation, given a chain code (ai),
example1.m
example2.m
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from Elliptic fourier for shape analysis by Auralius Manurung
Implementation of elliptic fourier for shape analysis.

example1.m
c = [5 4 1 2 3 4 3 0 0 1 0 1 0 0 0 7 7 1 1 0 7 5 4 5 4 5 0 6 5 4 1 3 4 4 4 4 6]; plot_chain_code(c) hold plot_fourier_approx(c, 10, 100, 0, 'r');