EMAN::DoGFourierProcessor Class Reference

processor radial function: f(x) = 1/sqrt(2*pi)*[1/sigma1*exp-(x^2/2*sigma1^2) - 1/sigma2*exp-(x^2/2*sigma2^2)] More...

#include <processor.h>

Inheritance diagram for EMAN::DoGFourierProcessor:

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Collaboration diagram for EMAN::DoGFourierProcessor:

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List of all members.

Public Member Functions

 DoGFourierProcessor ()
string get_name () const
 Get the processor's name.
string get_desc () const
 Get the descrition of this specific processor.
void set_params (const Dict &new_params)
 Set the processor parameters using a key/value dictionary.
TypeDict get_param_types () const
 Get processor parameter information in a dictionary.

Static Public Member Functions

static ProcessorNEW ()

Static Public Attributes

static const string NAME = "filter.DoG"

Protected Member Functions

void create_radial_func (vector< float > &radial_mask) const

Private Attributes

float sigma1
float sigma2

Detailed Description

processor radial function: f(x) = 1/sqrt(2*pi)*[1/sigma1*exp-(x^2/2*sigma1^2) - 1/sigma2*exp-(x^2/2*sigma2^2)]

Parameters:
sigma1 DoG sigma1
sigma1 DoG sigma2

Definition at line 1073 of file processor.h.


Constructor & Destructor Documentation

EMAN::DoGFourierProcessor::DoGFourierProcessor (  )  [inline]

Definition at line 1076 of file processor.h.

Referenced by NEW().

01076                                      :sigma1(0), sigma2(0)
01077                 {
01078                 }


Member Function Documentation

void DoGFourierProcessor::create_radial_func ( vector< float > &  radial_mask  )  const [protected, virtual]

Implements EMAN::FourierProcessor.

Definition at line 1208 of file processor.cpp.

References Assert, norm(), sigma1, sigma2, sqrt(), and x.

01209 {
01210         
01211         Assert(radial_mask.size() > 0);
01212         float x = 0.0f , nqstep = 0.5f/radial_mask.size();
01213         size_t size=radial_mask.size();
01214         float norm = 1.0f/sqrt(2*M_PI);
01215         for (size_t i = 0; i < size; i++) {
01216                 radial_mask[i] = norm*((1.0f/sigma1*exp(-x*x/(2.0f*sigma1*sigma1))) - (1.0f/sigma2*exp(-x*x/(2.0f*sigma2*sigma2))));
01217                 x += nqstep;
01218         }
01219 }

string EMAN::DoGFourierProcessor::get_desc (  )  const [inline, virtual]

Get the descrition of this specific processor.

This function must be overwritten by a subclass.

Returns:
The description of this processor.

Implements EMAN::Processor.

Definition at line 1089 of file processor.h.

01090                 {
01091                         return "processor radial function: f(x) = 1/sqrt(2*pi)*[1/sigma1*exp-(x^2/2*sigma1^2) - 1/sigma2*exp-(x^2/2*sigma2^2)]";
01092                 }

string EMAN::DoGFourierProcessor::get_name (  )  const [inline, virtual]

Get the processor's name.

Each processor is identified by a unique name.

Returns:
The processor's name.

Implements EMAN::Processor.

Definition at line 1080 of file processor.h.

References NAME.

01081                 {
01082                         return NAME;
01083                 }

TypeDict EMAN::DoGFourierProcessor::get_param_types (  )  const [inline, virtual]

Get processor parameter information in a dictionary.

Each parameter has one record in the dictionary. Each record contains its name, data-type, and description.

Returns:
A dictionary containing the parameter info.

Reimplemented from EMAN::FourierProcessor.

Definition at line 1101 of file processor.h.

References EMAN::EMObject::FLOAT, and EMAN::TypeDict::put().

01102                 {
01103                         TypeDict d;
01104                         d.put("sigma1", EMObject::FLOAT, "DoG sigma1");
01105                         d.put("sigma2", EMObject::FLOAT, "DoG sigma2");
01106                         return d;
01107                 }

static Processor* EMAN::DoGFourierProcessor::NEW (  )  [inline, static]

Definition at line 1084 of file processor.h.

References DoGFourierProcessor().

01085                 {
01086                         return new DoGFourierProcessor();
01087                 }

void EMAN::DoGFourierProcessor::set_params ( const Dict new_params  )  [inline, virtual]

Set the processor parameters using a key/value dictionary.

Parameters:
new_params A dictionary containing the new parameters.

Reimplemented from EMAN::Processor.

Definition at line 1094 of file processor.h.

References EMAN::Processor::params, sigma1, and sigma2.

01095                 {
01096                         params = new_params;
01097                         sigma1 = params["sigma1"];
01098                         sigma2 = params["sigma2"];
01099                 }


Member Data Documentation

const string DoGFourierProcessor::NAME = "filter.DoG" [static]

Definition at line 1109 of file processor.h.

Referenced by get_name().

float EMAN::DoGFourierProcessor::sigma1 [private]

Definition at line 1115 of file processor.h.

Referenced by create_radial_func(), and set_params().

float EMAN::DoGFourierProcessor::sigma2 [private]

Definition at line 1116 of file processor.h.

Referenced by create_radial_func(), and set_params().


The documentation for this class was generated from the following files:
Generated on Thu Nov 17 12:45:56 2011 for EMAN2 by  doxygen 1.4.7