Block processor, val1 is dx/dy, val2 is lp freq cutoff in pixels. More...

#include <processor.h>

Inheritance diagram for EMAN::CutoffBlockProcessor:

Collaboration diagram for EMAN::CutoffBlockProcessor:

[legend]

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

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...

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 = "eman1.filter.blockcutoff"

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

Block processor, val1 is dx/dy, val2 is lp freq cutoff in pixels.

Mystery processor.

Parameters

value1	val1 is dx/dy
value2	val2 is lowpass freq cutoff in pixels

Definition at line 4809 of file processor.h.

Member Function Documentation

◆ get_desc()

string EMAN::CutoffBlockProcessor::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 4831 of file processor.h.

                {
                        return "Block processor, val1 is dx/dy, val2 is lp freq cutoff in pixels. Mystery processor.";
                }

◆ get_name()

string EMAN::CutoffBlockProcessor::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 4814 of file processor.h.

                {
                        return NAME;
                }

References NAME.

Referenced by process_inplace().

◆ get_param_types()

TypeDict EMAN::CutoffBlockProcessor::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 4823 of file processor.h.

                {
                        TypeDict d;
                        d.put("value1", EMObject::FLOAT, "val1 is dx/dy");
                        d.put("value2", EMObject::FLOAT, "val2 is lowpass freq cutoff in pixels");
                        return d;
                }

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

◆ NEW()

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

inlinestatic

Definition at line 4818 of file processor.h.

                {
                        return new CutoffBlockProcessor();
                }

◆ process_inplace()

void CutoffBlockProcessor::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 2761 of file processor.cpp.

{
        if (!image) {
                LOGWARN("NULL Image");
                return;
        }
        int nz = image->get_zsize();
 
        if (nz > 1) {
                LOGERR("%s Processor doesn't support 3D", get_name().c_str());
                throw ImageDimensionException("3D model not supported");
        }
 
        int nx = image->get_xsize();
        int ny = image->get_ysize();
 
        float value1 = params["value1"];
        float value2 = params["value2"];
 
        int v1 = (int) value1;
        int v2 = (int) value2;
        if (v2 > v1 / 2) {
                LOGERR("invalid value2 '%f' in CutoffBlockProcessor", value2);
                return;
        }
 
        if (v2 <= 0) {
                v2 = v1;
        }
 
        float *data = image->get_data();
        int y = 0, x = 0;
        for (y = 0; y <= ny - v1; y += v1) {
                for (x = 0; x <= nx - v1; x += v1) {
 
                        EMData *clip = image->get_clip(Region(x, y, v1, v1));
                        EMData *fft = clip->do_fft();
 
                        float *fft_data = fft->get_data();
                        float sum = 0;
                        int nitems = 0;
 
                        for (int i = -v2; i < v2; i++) {
                                for (int j = 0; j < v2; j++) {
                                        if (j == 0 && i == 0) {
                                                continue;
                                        }
 
                                        if (hypot(j, i) < value2) {
                                                int t = j * 2 + (i + v1 / 2) * (v1 + 2);
                                                sum += (fft_data[t] * fft_data[t] + fft_data[t + 1] * fft_data[t + 1]);
                                                nitems++;
                                        }
                                }
                        }
 
                        if( clip )
                        {
                                delete clip;
                                clip = 0;
                        }
 
                        float mean = sum / nitems;
 
                        for (int i = y; i < y + v1; i++) {
                                for (int j = x; j < x + v1; j++) {
                                        data[i * nx + j] = mean;
                                }
                        }
                }
        }
 
        memset(&data[y * nx], 0, (ny - y) * nx * sizeof(float));
 
        for (int i = 0; i < ny; i++) {
                memset(&data[i * nx + x], 0, (nx - x) * sizeof(float));
        }
 
        image->update();
}

References EMAN::EMData::get_clip(), get_name(), ImageDimensionException, LOGERR, LOGWARN, EMAN::Processor::params, x, and y.

Member Data Documentation

◆ NAME

const string CutoffBlockProcessor::NAME = "eman1.filter.blockcutoff"

static

Definition at line 4836 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