Elliptical Fourier shape descriptors 1.0

Date Added: April 27, 2013 | Visits: 291

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These two functions impliment the system of elliptical Fourier shape descriptors first described by Kuhl and Giardina in "Elliptic Fourier features of a closed contour" Computer Graphics and Image Processing 18:236-258 1982. fEfourier is the forward transform which creates a "shape spectrum" of a closed x,y outline, rEfourier takes a specified number of harmonics from the spectrum and reconstructs the x,y outline. The functions are not only useful for the creation of shape descriptors but also for smoothing outlines or reducing an arbitrary outline to a specified number of points.

Requirements: No special requirements

Platforms: Matlab

Keyword: Creates, Number, Outline, Quotshape, Refourier, Spectrumquot, Takes, Transform

Users rating: 0/10

License: Shareware

Size: 10 KB

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