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Moments012d2C::Moments012d2C(void) Moments012d2C::Moments012d2C(const BoundaryC &) Moments012d2C::AddPixel(const PixelC &) Moments012d2C::Centerlize(void) Moments012d2C::ToPrincipalAxis(void) Moments012d2C::Moments012d2(void) const Moments012d2C::Moments012d2(void) Moments012d2C::M00(void) const Moments012d2C::M10(void) const Moments012d2C::M01(void) const Moments012d2C::M20(void) const Moments012d2C::M11(void) const Moments012d2C::M02(void) const Moments012d2C::M00(void) Moments012d2C::M10(void) Moments012d2C::M01(void) Moments012d2C::M20(void) Moments012d2C::M11(void) Moments012d2C::M02(void) Moments012d2C::Area(void) const Moments012d2C::CentroidX(void) const Moments012d2C::CentroidY(void) const Moments012d2C::Elongatedness(void) const

Moments012d2C
The first two moments in 2D space
include	"amma/Mom012d2.hh"
User Level:	Default
Library:	iaps
Example:	exImgSeq.cc
Section:	Image.Image Processing.Region Model
In Scope:	std

Derived Classes:

Moments012Perd2C

typedef LongIntT AreaT;

Area of a 2D object.

Moments012d2C()

Default constructor
Creates the moment object with all moments set to be zero.

Moments012d2C(const BoundaryC & boundary)

Constructor from boundary description
Gets moments 00, 10, 01, 20, 11, 22 of the region which is determined by the 'boundary'. The moments are computed according to the origin of the coordinate system of boundary vertexes

void AddPixel(const PixelC & pxl)

Adds a pixel to the object and updates sums.

Moments012d2C & Centerlize()

Recomputes the moments according to the centroid.

Moments012d2C & ToPrincipalAxis()

Recomputes the moments according to the principal axis.
It is supposed that input moments are centerlized

const Moments012d2C & Moments012d2() const

Moments012d2C & Moments012d2()

RealT M00() const

RealT M10() const

RealT M01() const

RealT M20() const

RealT M11() const

RealT M02() const

RealT & M00()

RealT & M10()

RealT & M01()

RealT & M20()

RealT & M11()

RealT & M02()

AreaT Area() const

Returns the moment m00, ie the area of the 2 dimensional object.

RealT CentroidX() const

Returns the x co-ordinate of the centroid.
The M00 moment must be different 0.

RealT CentroidY() const

Returns the y co-ordinate of the centroid.
The M00 moment must be different 0.

RealT Elongatedness() const

Returns the ratio of the difference and the sum of moments m02 and m20.
The value 0 means that objects is a symmetrical object, the value 1 corresponds to a one-dimensional object. Is is assumed that input moments are centeralized and rotated to the principal axes.