#include <processor.h>
Inheritance diagram for EMAN::RealToFFTProcessor:
Public Member Functions | |
void | process_inplace (EMData *image) |
To process an image in-place. | |
string | get_name () const |
Get the processor's name. | |
string | get_desc () const |
Get the descrition of this specific processor. | |
Static Public Member Functions | |
static Processor * | NEW () |
Static Public Attributes | |
static const string | NAME = "math.realtofft" |
Definition at line 3778 of file processor.h.
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Get the descrition of this specific processor. This function must be overwritten by a subclass.
Implements EMAN::Processor. Definition at line 3793 of file processor.h. 03794 { 03795 return "This will replace the image with a full-circle 2D fft amplitude rendering. Note that this renders amplitude, when intensity is more common."; 03796 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 3783 of file processor.h. References NAME. Referenced by process_inplace(). 03784 { 03785 return NAME; 03786 }
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Definition at line 3788 of file processor.h. 03789 { 03790 return new RealToFFTProcessor(); 03791 }
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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.
Implements EMAN::Processor. Definition at line 2978 of file processor.cpp. References EMAN::EMData::do_fft(), get_name(), EMAN::EMData::get_value_at(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), ImageDimensionException, ImageFormatException, EMAN::EMData::is_complex(), LOGERR, LOGWARN, norm(), EMAN::EMData::ri2ap(), EMAN::EMData::set_value_at(), EMAN::EMData::update(), and x. 02979 { 02980 if (!image) { 02981 LOGWARN("NULL Image"); 02982 return; 02983 } 02984 02985 //Note : real image only! 02986 if(image->is_complex()) { 02987 LOGERR("%s Processor only operates on real images", get_name().c_str()); 02988 throw ImageFormatException("apply to real image only"); 02989 } 02990 02991 // Note : 2D only! 02992 int nz = image->get_zsize(); 02993 if (nz > 1) { 02994 LOGERR("%s Processor doesn't support 3D models", get_name().c_str()); 02995 throw ImageDimensionException("3D model not supported"); 02996 } 02997 02998 EMData *ff=image->do_fft(); 02999 ff->ri2ap(); 03000 03001 int nx=image->get_xsize(); 03002 int ny=image->get_ysize(); 03003 03004 int x,y; 03005 float norm=static_cast<float>(nx*ny); 03006 03007 for (y=0; y<ny; y++) image->set_value_at(0,y,0); 03008 03009 for (x=1; x<nx/2; x++) { 03010 for (y=0; y<ny; y++) { 03011 int y2; 03012 if (y<ny/2) y2=y+ny/2; 03013 else if (y==ny/2) y2=ny; 03014 else y2=y-ny/2; 03015 image->set_value_at(x,y,ff->get_value_at(nx-x*2,ny-y2)/norm); 03016 } 03017 } 03018 03019 for (x=nx/2; x<nx; x++) { 03020 for (y=0; y<ny; y++) { 03021 int y2; 03022 if (y<ny/2) y2=y+ny/2; 03023 else y2=y-ny/2; 03024 image->set_value_at(x,y,ff->get_value_at(x*2-nx,y2)/norm); 03025 } 03026 } 03027 03028 image->update(); 03029 if( ff ) 03030 { 03031 delete ff; 03032 ff = 0; 03033 } 03034 }
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Definition at line 3798 of file processor.h. Referenced by get_name(). |