Open CASCADE Technology 6.6.0
Public Member Functions
Image_BilinearPixelInterpolation Class Reference

The class BilinearPixelInterpolation is used to compute a
SubPixel value on non integer Image coordinate
BilinearPixelInterpolation redefined a new method to compute
a SubPixel value .
The value is the bilinear interpolation of the
four nearest Image Pixel.
If V1, V2, V3, V4 is the value and (X1,Y1) , (X2,Y2),
(X3,Y3), (X4,Y4) the coordinates of the four nearest
Image Pixel then first we solve :
V1 = a*X1 + b*Y1 + c*X1*Y1 + d
V2 = a*X2 + b*Y2 + c*X2*Y2 + d
V3 = a*X3 + b*Y3 + c*X3*Y3 + d
V1 = a*X4 + b*Y4 + c*X4*Y4 + d

and V = a*FX + b*XY + c*FX*FY + d
is the Image SubPixel value on non integer
coordinate (FX,FY).

#include <Image_BilinearPixelInterpolation.hxx>

Inheritance diagram for Image_BilinearPixelInterpolation:
Inheritance graph
[legend]

Public Member Functions

 Image_BilinearPixelInterpolation ()
 Create a BilinearPixelInterpolation object.

virtual Standard_Boolean Interpolate (const Handle< Image_Image > &aImage, const Standard_Real FX, const Standard_Real FY, const Standard_Integer LowerX, const Standard_Integer LowerY, const Standard_Integer UpperX, const Standard_Integer UpperY, Aspect_Pixel &RetPixel) const
 Redefined the method to compute SubPixel's value
on non integer Image coordinate.
LowerX,LowerY,UpperX,UpperY is the Image Min Max, it's used
to check if the SubPixel coordinate FX,FY is outside of
image.
Return True if Interpolation Succes.
Return False if the SubPixel is out from Image.

virtual Standard_Boolean Interpolate (const Handle< Image_DColorImage > &aImage, const Standard_Real FX, const Standard_Real FY, const Standard_Integer LowerX, const Standard_Integer LowerY, const Standard_Integer UpperX, const Standard_Integer UpperY, Aspect_ColorPixel &RetPixel) const
 Compute SubPixel's value on non integer Image coordinate for
DColorImage and ColorPixel.
LowerX,LowerY,UpperX,UpperY is the Image Min Max, it's used
to check if the SubPixel coordinate FX,FY is outside of
image.
Return True if Interpolation Succes.
Return False if the SubPixel is out from Image.

virtual Standard_Boolean Interpolate (const Handle< Image_DIndexedImage > &aImage, const Standard_Real FX, const Standard_Real FY, const Standard_Integer LowerX, const Standard_Integer LowerY, const Standard_Integer UpperX, const Standard_Integer UpperY, Aspect_IndexPixel &RetPixel) const
 Compute SubPixel's value on non integer Image coordinate for
DIndexedImage and IndexPixel.
LowerX,LowerY,UpperX,UpperY is the Image Min Max, it's used
to check if the SubPixel coordinate X,Y is outside of
image.
Return True if Interpolation Succes.
Return False if the SubPixel is out from Image.


Constructor & Destructor Documentation

Image_BilinearPixelInterpolation::Image_BilinearPixelInterpolation ( )

Member Function Documentation

virtual Standard_Boolean Image_BilinearPixelInterpolation::Interpolate ( const Handle< Image_Image > &  aImage,
const Standard_Real  FX,
const Standard_Real  FY,
const Standard_Integer  LowerX,
const Standard_Integer  LowerY,
const Standard_Integer  UpperX,
const Standard_Integer  UpperY,
Aspect_Pixel RetPixel 
) const [virtual]

Reimplemented from Image_PixelInterpolation.

virtual Standard_Boolean Image_BilinearPixelInterpolation::Interpolate ( const Handle< Image_DIndexedImage > &  aImage,
const Standard_Real  FX,
const Standard_Real  FY,
const Standard_Integer  LowerX,
const Standard_Integer  LowerY,
const Standard_Integer  UpperX,
const Standard_Integer  UpperY,
Aspect_IndexPixel RetPixel 
) const [virtual]

Reimplemented from Image_PixelInterpolation.

virtual Standard_Boolean Image_BilinearPixelInterpolation::Interpolate ( const Handle< Image_DColorImage > &  aImage,
const Standard_Real  FX,
const Standard_Real  FY,
const Standard_Integer  LowerX,
const Standard_Integer  LowerY,
const Standard_Integer  UpperX,
const Standard_Integer  UpperY,
Aspect_ColorPixel RetPixel 
) const [virtual]

Reimplemented from Image_PixelInterpolation.


The documentation for this class was generated from the following file:
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