MitchellFilter Class Reference

2D symmetric Mitchell filter which is parameterized to tradeoff between 'ringing' and 'blurring' that other filters tend towards in difficult reconstruction cases More...

#include <MitchellFilter.h>

Inheritance diagram for MitchellFilter:

List of all members.

Public Member Functions
Constructors
	MitchellFilter (real_t support=2, real_t b=1.0/3.0, real_t c=1.0/3.0)
virtual	~MitchellFilter ()
Initialization
virtual void	init ()
	Performs any initialization which may be necessary before filter evaluation.
Main usage interface
virtual real_t	evaluate (const Vector2 &pt)
Protected Member Functions
real_t	_evaluate (real_t x) const
	1D Mitchell filter
Protected Attributes
real_t	m_B
real_t	m_C

---

Detailed Description

2D symmetric Mitchell filter which is parameterized to tradeoff between 'ringing' and 'blurring' that other filters tend towards in difficult reconstruction cases

Author:

Travis Fischer (fisch0920@gmail.com)

Matthew Jacobs (jacobs.mh@gmail.com)

Date:

Fall 2008

Note:

Mitchell Filter taken from PBRT (Pharr, Humphreys) http://www.pbrt.org

Definition at line 22 of file MitchellFilter.h.

---

Constructor & Destructor Documentation

MitchellFilter::MitchellFilter	(	real_t	support = 2,
		real_t	b = 1.0 / 3.0,
		real_t	c = 1.0 / 3.0
	)			[inline]

Definition at line 27 of file MitchellFilter.h.

virtual MitchellFilter::~MitchellFilter

(

)

[inline, virtual]

Definition at line 33 of file MitchellFilter.h.

---

Member Function Documentation

void MitchellFilter::init

(

)

[virtual]

Performs any initialization which may be necessary before filter evaluation.

Note:

Default implementation initializes the filter support based on its PropertyMap

Reimplemented from KernelFilter.

Definition at line 19 of file MitchellFilter.cpp.

real_t MitchellFilter::evaluate

(

const Vector2 &

pt

)

[virtual]

Returns:

the value of this filter function evaluated at the given point

Implements KernelFilter.

Definition at line 26 of file MitchellFilter.cpp.

real_t MitchellFilter::_evaluate

(

real_t

x

)

const [protected]

1D Mitchell filter

Definition at line 30 of file MitchellFilter.cpp.

---

Member Data Documentation

real_t MitchellFilter::m_B [protected]

Definition at line 62 of file MitchellFilter.h.

real_t MitchellFilter::m_C [protected]

Definition at line 63 of file MitchellFilter.h.

---

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

• MitchellFilter.h
• MitchellFilter.cpp