[−][src]Struct opencv::core::Moments

#[repr(C)]pub struct Moments {
    pub m00: f64,
    pub m10: f64,
    pub m01: f64,
    pub m20: f64,
    pub m11: f64,
    pub m02: f64,
    pub m30: f64,
    pub m21: f64,
    pub m12: f64,
    pub m03: f64,
    pub mu20: f64,
    pub mu11: f64,
    pub mu02: f64,
    pub mu30: f64,
    pub mu21: f64,
    pub mu12: f64,
    pub mu03: f64,
    pub nu20: f64,
    pub nu11: f64,
    pub nu02: f64,
    pub nu30: f64,
    pub nu21: f64,
    pub nu12: f64,
    pub nu03: f64,
}

struct returned by cv::moments

The spatial moments $inline formula$ are computed as:

$block formula$

The central moments $inline formula$ are computed as:

$block formula$

where $inline formula$ is the mass center:

$block formula$

The normalized central moments $inline formula$ are computed as:

$block formula$

Note: $inline formula$ , $inline formula$ $inline formula$ , hence the values are not stored.

The moments of a contour are defined in the same way but computed using the Green's formula (see http://en.wikipedia.org/wiki/Green_theorem). So, due to a limited raster resolution, the moments computed for a contour are slightly different from the moments computed for the same rasterized contour.

Note: Since the contour moments are computed using Green formula, you may get seemingly odd results for contours with self-intersections, e.g. a zero area (m00) for butterfly-shaped contours.

Fields

m00: f64

@name spatial moments

m10: f64

@name spatial moments

m01: f64

@name spatial moments

m20: f64

@name spatial moments

m11: f64

@name spatial moments

m02: f64

@name spatial moments

m30: f64

@name spatial moments

m21: f64

@name spatial moments

m12: f64

@name spatial moments

m03: f64

@name spatial moments

mu20: f64

@name central moments

mu11: f64

@name central moments

mu02: f64

@name central moments

mu30: f64

@name central moments

mu21: f64

@name central moments

mu12: f64

@name central moments

mu03: f64

@name central moments

nu20: f64