mirror of
https://github.com/opencv/opencv.git
synced 2024-12-12 07:09:12 +08:00
109 lines
4.0 KiB
ReStructuredText
109 lines
4.0 KiB
ReStructuredText
|
Shape Transformers and Interfaces
|
||
|
=================================
|
||
|
|
||
|
.. highlight:: cpp
|
||
|
|
||
|
A virtual interface that ease the use of transforming algorithms in some pipelines, such as
|
||
|
the Shape Context Matching Algorithm. Thus, all objects that implement shape transformation
|
||
|
techniques inherit the
|
||
|
:ocv:class:`ShapeTransformer` interface.
|
||
|
|
||
|
ShapeTransformer
|
||
|
----------------
|
||
|
.. ocv:class:: ShapeTransformer : public Algorithm
|
||
|
|
||
|
Abstract base class for shape transformation algorithms. ::
|
||
|
|
||
|
class CV_EXPORTS_W ShapeTransformer : public Algorithm
|
||
|
{
|
||
|
public:
|
||
|
CV_WRAP virtual void estimateTransformation(InputArray transformingShape, InputArray targetShape,
|
||
|
std::vector<DMatch>& matches) = 0;
|
||
|
|
||
|
CV_WRAP virtual float applyTransformation(InputArray input, OutputArray output=noArray()) = 0;
|
||
|
|
||
|
CV_WRAP virtual void warpImage(InputArray transformingImage, OutputArray output,
|
||
|
int flags=INTER_LINEAR, int borderMode=BORDER_CONSTANT,
|
||
|
const Scalar& borderValue=Scalar()) const = 0;
|
||
|
};
|
||
|
|
||
|
ShapeTransformer::estimateTransformation
|
||
|
----------------------------------------
|
||
|
Estimate the transformation parameters of the current transformer algorithm, based on point matches.
|
||
|
|
||
|
.. ocv:function:: void estimateTransformation( InputArray transformingShape, InputArray targetShape, std::vector<DMatch>& matches )
|
||
|
|
||
|
:param transformingShape: Contour defining first shape.
|
||
|
|
||
|
:param targetShape: Contour defining second shape (Target).
|
||
|
|
||
|
:param matches: Standard vector of Matches between points.
|
||
|
|
||
|
ShapeTransformer::applyTransformation
|
||
|
-------------------------------------
|
||
|
Apply a transformation, given a pre-estimated transformation parameters.
|
||
|
|
||
|
.. ocv:function:: float applyTransformation( InputArray input, OutputArray output=noArray() )
|
||
|
|
||
|
:param input: Contour (set of points) to apply the transformation.
|
||
|
|
||
|
:param output: Output contour.
|
||
|
|
||
|
ShapeTransformer::warpImage
|
||
|
---------------------------
|
||
|
Apply a transformation, given a pre-estimated transformation parameters, to an Image.
|
||
|
|
||
|
.. ocv:function:: void warpImage( InputArray transformingImage, OutputArray output, int flags=INTER_LINEAR, int borderMode=BORDER_CONSTANT, const Scalar& borderValue=Scalar() )
|
||
|
|
||
|
:param transformingImage: Input image.
|
||
|
|
||
|
:param output: Output image.
|
||
|
|
||
|
:param flags: Image interpolation method.
|
||
|
|
||
|
:param borderMode: border style.
|
||
|
|
||
|
:param borderValue: border value.
|
||
|
|
||
|
ThinPlateSplineShapeTransformer
|
||
|
-------------------------------
|
||
|
.. ocv:class:: ThinPlateSplineShapeTransformer : public Algorithm
|
||
|
|
||
|
Definition of the transformation ocupied in the paper "Principal Warps: Thin-Plate Splines and Decomposition
|
||
|
of Deformations", by F.L. Bookstein (PAMI 1989). ::
|
||
|
|
||
|
class CV_EXPORTS_W ThinPlateSplineShapeTransformer : public ShapeTransformer
|
||
|
{
|
||
|
public:
|
||
|
CV_WRAP virtual void setRegularizationParameter(double beta) = 0;
|
||
|
CV_WRAP virtual double getRegularizationParameter() const = 0;
|
||
|
};
|
||
|
|
||
|
/* Complete constructor */
|
||
|
CV_EXPORTS_W Ptr<ThinPlateSplineShapeTransformer>
|
||
|
createThinPlateSplineShapeTransformer(double regularizationParameter=0);
|
||
|
|
||
|
ThinPlateSplineShapeTransformer::setRegularizationParameter
|
||
|
-----------------------------------------------------------
|
||
|
Set the regularization parameter for relaxing the exact interpolation requirements of the TPS algorithm.
|
||
|
|
||
|
.. ocv:function:: void setRegularizationParameter( double beta )
|
||
|
|
||
|
:param beta: value of the regularization parameter.
|
||
|
|
||
|
AffineTransformer
|
||
|
-----------------
|
||
|
.. ocv:class:: AffineTransformer : public Algorithm
|
||
|
|
||
|
Wrapper class for the OpenCV Affine Transformation algorithm. ::
|
||
|
|
||
|
class CV_EXPORTS_W AffineTransformer : public ShapeTransformer
|
||
|
{
|
||
|
public:
|
||
|
CV_WRAP virtual void setFullAffine(bool fullAffine) = 0;
|
||
|
CV_WRAP virtual bool getFullAffine() const = 0;
|
||
|
};
|
||
|
|
||
|
/* Complete constructor */
|
||
|
CV_EXPORTS_W Ptr<AffineTransformer> createAffineTransformer(bool fullAffine);
|