Open CASCADE Technology  6.5.4
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Public Member Functions
Image_BalancedPixelInterpolation Class Reference

The class BalancedPixelInterpolation is used to compute a
SubPixel value on non integer Image coordinate
BalancedPixelInterpolation redefined a new method to compute
a SubPixel value .
The value is the proportional to the distance of the
four nearest Image Pixel.
A B
SubPixel
C D
If VA, VB, VC, VD is the value of the four nearest Image
Pixel, if ColDelta and RowDelta is the distance from non
integer coordinate (FX,FY) to the upper left nearest Image
Pixel , then :
ColDelta = FX - XA ;
RowDelta = FY - YA ;
CAB = ColDelta*( VB - VA ) + VA
CCD = ColDelta*( VD - VC ) + VD
V = RowDelta*( CCD - CAB ) + CAB
is the Image SubPixel value on non integer
coordinate (FX,FY).

#include <Image_BalancedPixelInterpolation.hxx>

Inheritance diagram for Image_BalancedPixelInterpolation:
Inheritance graph
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Public Member Functions

DEFINE_STANDARD_ALLOC Image_BalancedPixelInterpolation ()
 Create a BalancedPixelInterpolation 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


Member Function Documentation

Reimplemented from Image_PixelInterpolation.

Reimplemented from Image_PixelInterpolation.

Reimplemented from Image_PixelInterpolation.


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