TPerspectiveTransform Class

Definition

Unit:: ZXing.Common.PerspectiveTransform

Package:: QRCodeReader_FMX

This class implements a perspective transform in two dimensions. Given four source and four destination points, it will compute the transformation implied between them. The code is based directly upon section 3.4.2 of George Wolberg's "Digital Image Warping"; see pages 54-56.

Delphi

type TPerspectiveTransform = class(TObject)

Inheritance: TObject
TPerspectiveTransform

Constructors

Create(Single, Single, Single, Single, Single, Single, Single, Single, Single)

Methods

buildAdjoint
quadrilateralToQuadrilateral(Single, Single, Single, Single, Single, Single, Single, Single, Single, Single, Single, Single, Single, Single, Single, Single)
quadrilateralToSquare(Single, Single, Single, Single, Single, Single, Single, Single)
squareToQuadrilateral(Single, Single, Single, Single, Single, Single, Single, Single)
times(TPerspectiveTransform)
transformPoints(TArray<Single>)
transformPoints(TArray<Single>, TArray<Single>)	Convenience method, not optimized for performance.

Fields

a11
a12
a13
a21
a22
a23
a31
a32
a33