normalizes each row in the image individually More...

#include <processor.h>

Inheritance diagram for EMAN::NormalizeRowProcessor:

Collaboration diagram for EMAN::NormalizeRowProcessor:

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Public Member Functions
string	get_name () const
	Get the processor's name. More...

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

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

void	process_inplace (EMData *image)
	To process an image in-place. 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::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 = "normalize.rows"

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 Attributes inherited from EMAN::Processor
Dict	params

Detailed Description

normalizes each row in the image individually

Definition at line 6176 of file processor.h.

Member Function Documentation

◆ get_desc()

string EMAN::NormalizeRowProcessor::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 6196 of file processor.h.

                {
                        return "Modifies each row in the image individually. Default behavior is to divide each value by the mean value of the row, as long as the mean>0.";
                }

◆ get_name()

string EMAN::NormalizeRowProcessor::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 6179 of file processor.h.

                {
                        return NAME;
                }

References NAME.

◆ get_param_types()

TypeDict EMAN::NormalizeRowProcessor::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 6189 of file processor.h.

                {
                        TypeDict d;
                        d.put("unitlen",EMObject::BOOL, "Adjusts the length of the 'row vector' to be 1.0 without adjusting the mean");
                        return d;
                }

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

◆ NEW()

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

inlinestatic

Definition at line 6184 of file processor.h.

                {
                        return new NormalizeRowProcessor();
                }

◆ process_inplace()

void NormalizeRowProcessor::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 4926 of file processor.cpp.

{
        if (!image) {
                LOGWARN("NULL Image");
                return;
        }
 
        
        
 
        float *rdata = image->get_data();
        int nx = image->get_xsize();
        int ny = image->get_ysize();
        int nz = image->get_zsize();
 
        if (nz > 1) {
                // Muyuan 08/2018: normalize by slice when nz>1
                // since this processor is not used anyways..
                for (int z = 0; z < nz; z++) {
                        double row_sum = 0;
                        double row_sqr = 0;
                        for (int y = 0; y < ny; y++) {
                                for (int x = 0; x < nx; x++) {
                                        float d = rdata[x + y * nx + z*nx*ny];
                                        row_sum += d;
                                        d*=d;
                                        row_sqr += d;
                                }
                        }
                        double row_mean = row_sum / nx / ny;
                        double row_std = row_sqr / nx / ny;
                        row_std = sqrt(row_std - row_mean*row_mean);
                        for (int y = 0; y < ny; y++) {
                                for (int x = 0; x < nx; x++) {
                                        rdata[x + y * nx+ z*nx*ny] -= (float)row_mean;
                                        rdata[x + y * nx+ z*nx*ny] /= (float)row_std;
                                }
                        }
                        
                }
                
                
//              LOGERR("row normalize only works for 2D image");
//              return;
        }
        
        else {
                if (params.has_key("unitlen")) {
                        for (int y = 0; y < ny; y++) {
                                double row_len = 0;
                                for (int x = 0; x < nx; x++) {
                                        row_len += pow((double)rdata[x + y * nx],2.0);
                                }
                                row_len=sqrt(row_len);
                                if (row_len==0) row_len=1.0;
 
                                for (int x = 0; x < nx; x++) {
                                        rdata[x + y * nx] /= (float)row_len;
                                }
                        }
                        image->update();
                        return;
                }
                
                for (int y = 0; y < ny; y++) {
                        double row_sum = 0;
                        for (int x = 0; x < nx; x++) {
                                row_sum += rdata[x + y * nx];
                        }
 
                        double row_mean = row_sum / nx;
                        if (row_mean <= 0) {
                                row_mean = 1;
                        }
 
                        for (int x = 0; x < nx; x++) {
                                rdata[x + y * nx] /= (float)row_mean;
                        }
                }
        }
        image->update();
}

References EMAN::Dict::has_key(), LOGWARN, EMAN::Processor::params, rdata, sqrt(), x, and y.

Member Data Documentation

◆ NAME

const string NormalizeRowProcessor::NAME = "normalize.rows"

static

Definition at line 6201 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