Struct PerspectiveTransform 

pub struct PerspectiveTransform {
    pub matrix: Array2<f64>,
}

3x3 Perspective transformation matrix

Fields

matrix: Array2<f64>

Homography matrix

Implementations

impl PerspectiveTransform

pub fn new(data: [f64; 9]) -> Self

Create a new perspective transformation matrix from raw data

pub fn identity() -> Self

Create an identity transformation that leaves the image unchanged

pub fn from_points( srcpoints: &[(f64, f64)], dst_points: &[(f64, f64)], ) -> Result<Self>

Compute a perspective transformation from point correspondences

pub fn from_quad( x: f64, y: f64, width: f64, height: f64, dst_points: &[(f64, f64)], ) -> Result<Self>

Create a perspective transformation to map a rectangle to a quadrilateral

pub fn inverse(&self) -> Result<Self>

Get the inverse transformation

Returns

• The inverse perspective transformation

pub fn transform_point(&self, point: (f64, f64)) -> (f64, f64)

Transform a point using this perspective transformation

Arguments

• point - The point to transform (x, y)

Returns

• The transformed point (x’, y’)

pub fn transform_points_simd(&self, points: &[(f64, f64)]) -> Vec<(f64, f64)>

Transform multiple points using SIMD operations for better performance

Arguments

• points - Slice of points to transform [(x, y), …]

Returns

• Vector of transformed points

Performance

Uses SIMD operations for batch transformation, providing 2-4x speedup for large point sets compared to individual point transformation.

pub fn reprojection_errors( &self, srcpoints: &[(f64, f64)], dst_points: &[(f64, f64)], ) -> Vec<f64>

Calculate reprojection error for point correspondences

Arguments

• srcpoints - Source points
• dst_points - Destination points

Returns

• Vector of squared reprojection errors for each correspondence

pub fn compute_determinant(&self) -> f64

Compute the determinant of the transformation matrix

Trait Implementations

impl Clone for PerspectiveTransform

fn clone(&self) -> PerspectiveTransform

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PerspectiveTransform

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.