utils
Class MitchellNetravaliPixelFilter

java.lang.Object
  utils.MitchellNetravaliPixelFilter

All Implemented Interfaces:

IPixelFilter

public class MitchellNetravaliPixelFilter
extends java.lang.Object
implements IPixelFilter

the Mitchell Netravali pixel filter uses random numbers to produce a 4x4 square with evenly distributed pixels and gives them a weight comparable to the sinc function

Constructor Summary

MitchellNetravaliPixelFilter(double b, double c)
constructor

Method Summary

double	getFilterHeight()
double	getFilterWidth()
double	warp(Point2D canonical, Point2D warped) warps a point from a canonical random point [0,1]x[0,1] to a range [-0.5*width,0.5*width]x[-0.5*height,0.5*height] (0,0) is the mid of the pixel which is calculated

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MitchellNetravaliPixelFilter

public MitchellNetravaliPixelFilter(double b,
                                    double c)

constructor

Parameters:

b -

c -

Method Detail

warp

public double warp(Point2D canonical,
                   Point2D warped)

Description copied from interface: IPixelFilter

warps a point from a canonical random point [0,1]x[0,1] to a range [-0.5*width,0.5*width]x[-0.5*height,0.5*height] (0,0) is the mid of the pixel which is calculated

Specified by:

warp in interface IPixelFilter

Parameters:

canonical - [in] canonical random point

warped - [out] the warped point

Returns:

the warped point of a canonical random point and its weight

getFilterHeight

public double getFilterHeight()

Specified by:

getFilterHeight in interface IPixelFilter

Returns:

the height of the filter kernel

getFilterWidth

public double getFilterWidth()

Specified by:

getFilterWidth in interface IPixelFilter

Returns:

the width of the filter kernel