mirror an image around an axis (reverse pixels) More...

#include <processor.h>

Inheritance diagram for EMAN::ReverseProcessor:

Collaboration diagram for EMAN::ReverseProcessor:

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

virtual 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 = "xform.reverse"

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

mirror an image around an axis (reverse pixels)

Parameters

axis	'x', 'y', or 'z' axis. 'x' means horizonal mirror; 'y' means vertical mirror;

Definition at line 6429 of file processor.h.

Member Function Documentation

◆ get_desc()

virtual string EMAN::ReverseProcessor::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 6451 of file processor.h.

                {
                        return "Mirrors (reverses) an image along the specified axis, preserving the center. This will NOT introduce a plane of 0's for even box sizes. Use 'xform.mirror' or 'xform.flip' processor to include the zero plane and preserve the center.";
                }

◆ get_name()

virtual string EMAN::ReverseProcessor::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 6434 of file processor.h.

                {
                        return NAME;
                }

References NAME.

◆ get_param_types()

virtual TypeDict EMAN::ReverseProcessor::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 6444 of file processor.h.

                {
                        TypeDict d;
                        d.put("axis", EMObject::STRING, "'x', 'y', or 'z' axis.");
                        return d;
                }

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

◆ NEW()

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

inlinestatic

Definition at line 6439 of file processor.h.

                {
                        return new ReverseProcessor();
                }

◆ process_inplace()

void ReverseProcessor::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 10531 of file processor.cpp.

{
        if (!image) {
                LOGWARN("NULL Image");
                return;
        }
 
        string axis = (const char*)params["axis"];
 
        float* data = image->EMData::get_data();
 
        int nx = image->get_xsize();
        int ny = image->get_ysize();
        int nz = image->get_zsize();
        size_t nxy = nx*ny;
 
        int x_start = 0;
        int y_start = 0;
        int z_start = 0;
 
        if (axis == "x" || axis == "X") {
                int offset = 0;
                for (int iz = 0; iz < nz; iz++){
                        for (int iy = 0; iy < ny; iy++) {
                                offset = nx*iy + nxy*iz;
                                reverse(&data[x_start+offset],&data[offset+nx]);
                        }
                }
        } else if (axis == "y" || axis == "Y") {
                float *tmp = new float[nx];
                int nhalf = ny/2;
                size_t beg = 0;
                for (int iz = 0; iz < nz; iz++) {
                        beg = iz*nxy;
                        for (int iy = y_start; iy < nhalf; iy++) {
                                memcpy(tmp, &data[beg+iy*nx], nx*sizeof(float));
                                memcpy(&data[beg+iy*nx], &data[beg+(y_start+ny-iy-1)*nx], nx*sizeof(float));
                                memcpy(&data[beg+(y_start+ny-iy-1)*nx], tmp, nx*sizeof(float));
                        }
                }
                delete[] tmp;
        } else if (axis == "z" || axis == "Z") {
                if(1-z_start) {
                        int nhalf = nz/2;
                        float *tmp = new float[nxy];
                        for(int iz = 0;iz<nhalf;iz++){
                                memcpy(tmp,&data[iz*nxy],nxy*sizeof(float));
                                memcpy(&data[iz*nxy],&data[(nz-iz-1)*nxy],nxy*sizeof(float));
                                memcpy(&data[(nz-iz-1)*nxy],tmp,nxy*sizeof(float));
                        }
                        delete[] tmp;
                } else {
                        float *tmp = new float[nx];
                        int nhalf = nz/2;
                        size_t beg = 0;
                        for (int iy = 0; iy < ny; iy++) {
                                beg = iy*nx;
                                for (int iz = z_start; iz < nhalf; iz++) {
                                        memcpy(tmp, &data[beg+ iz*nxy], nx*sizeof(float));
                                        memcpy(&data[beg+iz*nxy], &data[beg+(nz-iz-1+z_start)*nxy], nx*sizeof(float));
                                        memcpy(&data[beg+(nz-iz-1+z_start)*nxy], tmp, nx*sizeof(float));
                                }
                        }
                        delete[] tmp;
                }
        }
 
        image->update();
}

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

Member Data Documentation

◆ NAME

const string ReverseProcessor::NAME = "xform.reverse"

static

Definition at line 6456 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