Replace a source image as a strict Gaussian. More...

#include <processor.h>

Inheritance diagram for EMAN::TestImagePureGaussian:

Collaboration diagram for EMAN::TestImagePureGaussian:

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Public Member Functions
virtual void	process_inplace (EMData *image)
	To process an image in-place. More...

virtual string	get_name () const
	Get the processor's name. More...

virtual string	get_desc () const
	Get the descrition of this specific processor. More...

virtual TypeDict	get_param_types () const
	Get processor parameter information in a dictionary. More...

Public Member Functions inherited from EMAN::Processor
virtual	~Processor ()

virtual EMData *	process (const EMData *const image)
	To proccess an image out-of-place. More...

virtual void	process_list_inplace (vector< EMData * > &images)
	To process multiple images using the same algorithm. More...

virtual Dict	get_params () const
	Get the processor parameters in a key/value dictionary. More...

virtual void	set_params (const Dict &new_params)
	Set the processor parameters using a key/value dictionary. More...

Static Public Member Functions
static Processor *	NEW ()

Static Public Member Functions inherited from EMAN::TestImageProcessor
static string	get_group_desc ()

Static Public Member Functions inherited from EMAN::Processor
static string	get_group_desc ()
	Get the description of this group of processors. More...

static void	EMFourierFilterInPlace (EMData *fimage, Dict params)
	Compute a Fourier-filter processed image in place. More...

static EMData *	EMFourierFilter (EMData *fimage, Dict params)
	Compute a Fourier-processor processed image without altering the original image. More...

Static Public Attributes
static const string	NAME = "testimage.puregaussian"

Additional Inherited Members
Public Types inherited from EMAN::Processor
enum	fourier_filter_types { TOP_HAT_LOW_PASS , TOP_HAT_HIGH_PASS , TOP_HAT_BAND_PASS , TOP_HOMOMORPHIC , GAUSS_LOW_PASS , GAUSS_HIGH_PASS , GAUSS_BAND_PASS , GAUSS_INVERSE , GAUSS_HOMOMORPHIC , BUTTERWORTH_LOW_PASS , BUTTERWORTH_HIGH_PASS , BUTTERWORTH_HOMOMORPHIC , KAISER_I0 , KAISER_SINH , KAISER_I0_INVERSE , KAISER_SINH_INVERSE , SHIFT , TANH_LOW_PASS , TANH_HIGH_PASS , TANH_HOMOMORPHIC , TANH_BAND_PASS , RADIAL_TABLE , CTF_ }
	Fourier filter Processor type enum. More...

Protected Member Functions inherited from EMAN::TestImageProcessor
void	preprocess (EMData *image)

Protected Attributes inherited from EMAN::TestImageProcessor
int	nx

int	ny

int	nz

Protected Attributes inherited from EMAN::Processor
Dict	params

Detailed Description

Replace a source image as a strict Gaussian.

Parameters

x_sigma	sigma value for this Gaussian blob on x direction
y_sigma	sigma value for this Gaussian blob on y direction
z_sigma	sigma value for this Gaussian blob on z direction
x_center	center for this Gaussian blob on x direction
y_center	center for this Gaussian blob on y direction
z_center	center for this Gaussian blob on z direction

Definition at line 8074 of file processor.h.

Member Function Documentation

◆ get_desc()

virtual string EMAN::TestImagePureGaussian::get_desc ( ) const

inlinevirtual

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 8084 of file processor.h.

                {
                        return "Replace a source image as a strict Gaussian ";
                }

◆ get_name()

virtual string EMAN::TestImagePureGaussian::get_name ( ) const

inlinevirtual

Get the processor's name.

Each processor is identified by a unique name.

Returns: The processor's name.

Implements EMAN::Processor.

Definition at line 8079 of file processor.h.

                {
                        return NAME;
                }

References NAME.

◆ get_param_types()

virtual TypeDict EMAN::TestImagePureGaussian::get_param_types ( ) const

inlinevirtual

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::Processor.

Definition at line 8094 of file processor.h.

                {
                        TypeDict d;
                        d.put("x_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on x direction");
                        d.put("y_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on y direction");
                        d.put("z_sigma", EMObject::FLOAT, "sigma value for this Gaussian blob on z direction");
                        d.put("x_center", EMObject::FLOAT, "center for this Gaussian blob on x direction" );
                        d.put("y_center", EMObject::FLOAT, "center for this Gaussian blob on y direction" );
                        d.put("z_center", EMObject::FLOAT, "center for this Gaussian blob on z direction" );
                        return d;
                }

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

◆ NEW()

static Processor * EMAN::TestImagePureGaussian::NEW ( )

inlinestatic

Definition at line 8089 of file processor.h.

                {
                        return new TestImagePureGaussian();
                }

◆ process_inplace()

void TestImagePureGaussian::process_inplace ( EMData * image )

virtual

To process an image in-place.

For those processors which can only be processed out-of-place, override this function to just print out some error message to remind user call the out-of-place version.

Parameters

image The image to be processed.

Implements EMAN::Processor.

Definition at line 9509 of file processor.cpp.

{
        preprocess(image);
 
        float x_sigma = params["x_sigma"];
        float y_sigma = params["y_sigma"];
        float z_sigma = params["z_sigma"];
 
        float x_center = params["x_center"];
        float y_center = params["y_center"];
        float z_center = params["z_center"];
 
        int nx = image->get_xsize();
        int ny = image->get_ysize();
        int nz = image->get_zsize();
 
        float x_twosig2 = 2*x_sigma*x_sigma;
        float y_twosig2 = 2*y_sigma*y_sigma;
        float z_twosig2 = 2*z_sigma*z_sigma;
 
        float sr2pi = sqrt( 2.0f*(float)pi );
        float norm      = 1.0f/ ( x_sigma*sr2pi );
        if (ny > 1) {
                norm *= 1.0f/ ( y_sigma*sr2pi );
                if (nz > 1) norm  *= 1.0f/ ( z_sigma*sr2pi );
        }
 
        float z, y, x, sum, val;
        for (int iz=0; iz < nz; ++iz) {
                z = static_cast<float>(iz) - z_center;
                for (int iy=0; iy < ny; ++iy) {
                        y = static_cast<float>(iy) - y_center;
                        for (int ix=0; ix < nx; ++ix) {
                                x = static_cast<float>(ix) - x_center;
                                sum = x*x/x_twosig2 + y*y/y_twosig2 + z*z/z_twosig2;
                                val = norm*exp(-sum);
                                (*image)(ix,iy,iz) = val;
                        }
                }
        }
        image->update();
}

References EMAN::TestImageProcessor::nx, EMAN::TestImageProcessor::ny, EMAN::TestImageProcessor::nz, EMAN::Processor::params, EMAN::TestImageProcessor::preprocess(), sqrt(), x, and y.

Member Data Documentation

◆ NAME

const string TestImagePureGaussian::NAME = "testimage.puregaussian"

static

Definition at line 8106 of file processor.h.

Referenced by get_name().

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

Public Member Functions

Static Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ get_desc()

◆ get_name()

◆ get_param_types()

◆ NEW()

◆ process_inplace()

Member Data Documentation

◆ NAME