boofcv.alg.interpolate.kernel

Class BicubicKernel_F32

java.lang.Object

boofcv.struct.convolve.KernelBase

boofcv.struct.convolve.Kernel1D

boofcv.struct.convolve.KernelContinuous1D_F32

boofcv.alg.interpolate.kernel.BicubicKernel_F32

public class BicubicKernel_F32
extends KernelContinuous1D_F32

A kernel can be used to approximate bicubic interpolation. Full bicubic interpolation is much more expensive. The value of a=-0.5 is the best approximation.

• R. Keys, (1981). "Cubic convolution interpolation for digital image processing". IEEE Transactions on Signal Processing, Acoustics, Speech, and Signal Processing 29: 1153
• http://en.wikipedia.org/wiki/Bicubic_interpolation for more information. July 25, 2011

Field Summary

Fields inherited from class boofcv.struct.convolve.KernelBase

offset, width

Constructor Summary

Constructors

Constructor and Description
BicubicKernel_F32(float a) Values of a =-0.5 and -0.75 are typical

Method Summary

Modifier and Type	Method and Description
float	compute(float x) Computes the value of the kernel at hte specified point.
<T extends KernelBase> T	copy()
double	getDouble(int index)
boolean	isInteger()
void	setD(int index, double value)

Methods inherited from class boofcv.struct.convolve.Kernel1D

getDimension

Methods inherited from class boofcv.struct.convolve.KernelBase

getOffset, getRadius, getWidth

Methods inherited from class java.lang.Object

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

Constructor Detail

BicubicKernel_F32

public BicubicKernel_F32(float a)

Values of a =-0.5 and -0.75 are typical

Parameters:

a - A parameter

Method Detail

isInteger

public boolean isInteger()

Specified by:

isInteger in class KernelBase

copy

public <T extends KernelBase> T copy()

Specified by:

copy in class KernelBase

compute

public float compute(float x)

Description copied from class: KernelContinuous1D_F32

Computes the value of the kernel at hte specified point.

Specified by:

compute in class KernelContinuous1D_F32

Parameters:

x - Function's input.

Returns:

Function's value at point 'x'

getDouble

public double getDouble(int index)

Specified by:

getDouble in class Kernel1D

setD

public void setD(int index,
                 double value)

Specified by:

setD in class Kernel1D