EMAN2
Public Member Functions | Static Public Member Functions | Static Public Attributes | Protected Member Functions | Private Attributes
EMAN::LoGFourierProcessor Class Reference

processor radial function: f(x) = ((x^2 - s^2)/s^4)e^-(x^2/2s^2) More...

#include <processor.h>

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

List of all members.

Public Member Functions

 LoGFourierProcessor ()
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.LoG"

Protected Member Functions

void create_radial_func (vector< float > &radial_mask) const

Private Attributes

float sigma

Detailed Description

processor radial function: f(x) = ((x^2 - s^2)/s^4)e^-(x^2/2s^2)

Parameters:
sigmaLoG sigma

Definition at line 1123 of file processor.h.


Constructor & Destructor Documentation

EMAN::LoGFourierProcessor::LoGFourierProcessor ( ) [inline]

Definition at line 1126 of file processor.h.

Referenced by NEW().

                                     :sigma(0)
                {
                }

Member Function Documentation

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

Implements EMAN::FourierProcessor.

Definition at line 1430 of file processor.cpp.

References Assert, sigma, var(), and x.

{

        Assert(radial_mask.size() > 0);
        float x = 0.0f , nqstep = 0.5f/radial_mask.size();
        size_t size=radial_mask.size();
        float var = sigma*sigma;
        for (size_t i = 0; i < size; i++) {
                radial_mask[i] = ((x*x - var)/var*var)*exp(-x*x/2*var);
                x += nqstep;
        }
}
string EMAN::LoGFourierProcessor::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 1139 of file processor.h.

                {
                        return "processor radial function: f(x) = ((x^2 - s^2)/s^4)e^-(x^2/2s^2)";
                }
string EMAN::LoGFourierProcessor::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 1130 of file processor.h.

References NAME.

                {
                        return NAME;
                }
TypeDict EMAN::LoGFourierProcessor::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 1150 of file processor.h.

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

                {
                        TypeDict d;
                        d.put("sigma", EMObject::FLOAT, "LoG sigma");
                        return d;
                }
static Processor* EMAN::LoGFourierProcessor::NEW ( ) [inline, static]

Definition at line 1134 of file processor.h.

References LoGFourierProcessor().

                {
                        return new LoGFourierProcessor();
                }
void EMAN::LoGFourierProcessor::set_params ( const Dict new_params) [inline, virtual]

Set the processor parameters using a key/value dictionary.

Parameters:
new_paramsA dictionary containing the new parameters.

Reimplemented from EMAN::Processor.

Definition at line 1144 of file processor.h.

References EMAN::Processor::params, and sigma.

                {
                        params = new_params;
                        sigma = params["sigma"];
                }

Member Data Documentation

const string LoGFourierProcessor::NAME = "filter.LoG" [static]

Definition at line 1157 of file processor.h.

Referenced by get_name().

Definition at line 1163 of file processor.h.

Referenced by create_radial_func(), and set_params().


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