Main Page | Modules | Namespace List | Class Hierarchy | Alphabetical List | Class List | Directories | File List | Namespace Members | Class Members | File Members

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:

Inheritance graph
[legend]
Collaboration diagram for EMAN::DoGFourierProcessor:

Collaboration graph
[legend]
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

ProcessorNEW ()

Static Public Attributes

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 1118 of file processor.h.


Constructor & Destructor Documentation

EMAN::DoGFourierProcessor::DoGFourierProcessor  )  [inline]
 

Definition at line 1121 of file processor.h.

01121                                      :sigma1(0), sigma2(0)
01122                 {
01123                 }


Member Function Documentation

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

Implements EMAN::FourierProcessor.

Definition at line 1282 of file processor.cpp.

References Assert, norm(), sigma1, sigma2, EMAN::Dict::size(), sqrt(), and x.

01283 {
01284         
01285         Assert(radial_mask.size() > 0);
01286         float x = 0.0f , nqstep = 0.5f/radial_mask.size();
01287         size_t size=radial_mask.size();
01288         float norm = 1.0f/sqrt(2*M_PI);
01289         for (size_t i = 0; i < size; i++) {
01290                 radial_mask[i] = norm*((1.0f/sigma1*exp(-x*x/(2.0f*sigma1*sigma1))) - (1.0f/sigma2*exp(-x*x/(2.0f*sigma2*sigma2))));
01291                 x += nqstep;
01292         }
01293 }

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 1134 of file processor.h.

01135                 {
01136                         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)]";
01137                 }

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 1125 of file processor.h.

01126                 {
01127                         return NAME;
01128                 }

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 1146 of file processor.h.

References EMAN::TypeDict::put().

01147                 {
01148                         TypeDict d;
01149                         d.put("sigma1", EMObject::FLOAT, "DoG sigma1");
01150                         d.put("sigma2", EMObject::FLOAT, "DoG sigma2");
01151                         return d;
01152                 }

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

Definition at line 1129 of file processor.h.

01130                 {
01131                         return new DoGFourierProcessor();
01132                 }

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 1139 of file processor.h.

01140                 {
01141                         params = new_params;
01142                         sigma1 = params["sigma1"];
01143                         sigma2 = params["sigma2"];
01144                 }


Member Data Documentation

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

Definition at line 71 of file processor.cpp.

float EMAN::DoGFourierProcessor::sigma1 [private]
 

Definition at line 1160 of file processor.h.

Referenced by create_radial_func().

float EMAN::DoGFourierProcessor::sigma2 [private]
 

Definition at line 1161 of file processor.h.

Referenced by create_radial_func().


The documentation for this class was generated from the following files:
Generated on Tue Jun 11 13:48:23 2013 for EMAN2 by  doxygen 1.3.9.1