Uses of Class
imagingbook.common.geometry.fd.FourierDescriptor

Packages that use FourierDescriptor

Package	Description
imagingbook.common.geometry.fd	Fourier descriptors for 2D shape representation and matching.

Uses of FourierDescriptor in imagingbook.common.geometry.fd

Methods in imagingbook.common.geometry.fd that return FourierDescriptor

Modifier and Type	Method	Description
static FourierDescriptor	FourierDescriptorTrigonometric.from(Pnt2d[] V, int mp)	Creates a FourierDescriptor directly from the vertices of a closed polygon (without interpolation).
static FourierDescriptor	FourierDescriptorUniform.from(Pnt2d[] V)	Creates a new Fourier descriptor from a uniformly sampled polygon V with the maximum number of Fourier coefficient pairs.
static FourierDescriptor	FourierDescriptorUniform.from(Pnt2d[] V, int mp)	Creates a new Fourier descriptor from a uniformly sampled polygon V with Mp coefficient pairs.
static FourierDescriptor	FourierDescriptorUniform.from(Complex[] V)	Creates a new Fourier descriptor from a uniformly sampled polygon V with the maximum number of Fourier coefficient pairs.
static FourierDescriptor	FourierDescriptorUniform.from(Complex[] V, int mp)	Creates a new Fourier descriptor from a uniformly sampled polygon V with Mp coefficient pairs.
FourierDescriptor[]	FourierDescriptor.makeInvariant()	Makes this Fourier descriptor invariant to scale, start-point and rotation.
FourierDescriptor	FourierDescriptor.makeRotationInvariant()	Returns a new rotation invariant Fourier descriptor by applying complex rotation to all coefficients (except coefficient 0).
FourierDescriptor	FourierDescriptor.makeScaleInvariant()	Returns a new scale invariant Fourier descriptor by normalizing the L2 norm of the sub-vector {G[-mp], ..., G[-1], G[1], ..., G[mp]}.
FourierDescriptor[]	FourierDescriptor.makeStartPointInvariant()	Returns a pair of start-point normalized Fourier descriptors.
FourierDescriptor	FourierDescriptor.makeTranslationInvariant()	Returns a new translation invariant Fourier descriptor by setting coefficient 0 to zero.

Methods in imagingbook.common.geometry.fd with parameters of type FourierDescriptor

Modifier and Type	Method	Description
double	FourierDescriptor.distanceComplex(FourierDescriptor fd2)	Returns a L2-type distance between this and another FourierDescriptor instance comparing the real and imaginary parts of all coefficient pairs.
double	FourierDescriptor.distanceComplex(FourierDescriptor fd2, int p)	Returns a L2-type distance between this and another FourierDescriptor instance comparing the real and imaginary parts of a limited range of (low-frequency) coefficient pairs.
double	FourierDescriptor.distanceMagnitude(FourierDescriptor fd2)	Returns a L2-type distance between this and another FourierDescriptor instance comparing the magnitudes of all coefficient pairs.
double	FourierDescriptor.distanceMagnitude(FourierDescriptor fd2, int p)	Returns a L2-type distance between this and another FourierDescriptor instance comparing the magnitudes of a limited range of (low-frequency) coefficient pairs.

Constructors in imagingbook.common.geometry.fd with parameters of type FourierDescriptor

Modifier	Constructor	Description
	FourierDescriptor(FourierDescriptor fd)	Constructor for cloning Fourier descriptors.