#include <processor.h>
Inheritance diagram for EMAN::BinarizeFourierProcessor:
Public Member Functions | |
virtual string | get_name () const |
Get the processor's name. | |
virtual void | process_inplace (EMData *image) |
virtual TypeDict | get_param_types () const |
Get processor parameter information in a dictionary. | |
virtual string | get_desc () const |
Get the descrition of this specific processor. | |
Static Public Member Functions | |
Processor * | NEW () |
Static Public Attributes | |
const string | NAME = "threshold.binary.fourier" |
All maps set below value are set to zero Useful in tomography when you want to toss complex components with low amplitides
value | The Fourier amplitude threshold cutoff |
Definition at line 1911 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 1936 of file processor.h. 01937 { 01938 return "f(k) = 0 + 0i if ||f(k)|| < value; f(k) = a + bi if ||f(k)|| >= value."; 01939 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 1914 of file processor.h. 01915 {
01916 return NAME;
01917 }
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Get processor parameter information in a dictionary. Each parameter has one record in the dictionary. Each record contains its name, data-type, and description.
Reimplemented from EMAN::Processor. Definition at line 1929 of file processor.h. References EMAN::TypeDict::put(). 01930 { 01931 TypeDict d; 01932 d.put("value", EMObject::FLOAT, "The Fourier amplitude threshold cutoff" ); 01933 return d; 01934 }
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Definition at line 1918 of file processor.h. 01919 { 01920 return new BinarizeFourierProcessor(); 01921 }
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Implements EMAN::Processor. Definition at line 3966 of file processor.cpp. References EMAN::EMData::ap2ri(), EMAN::EMData::get_data(), EMAN::EMData::get_size(), ImageFormatException, EMAN::EMData::is_complex(), EMAN::EMData::ri2ap(), EMAN::Dict::set_default(), EMAN::EMData::set_ri(), and EMAN::EMData::update(). 03966 { 03967 ENTERFUNC; 03968 if (!image->is_complex()) throw ImageFormatException("Fourier binary thresholding processor only works for complex images"); 03969 03970 float threshold = params.set_default("value",0.0f); 03971 image->ri2ap(); // works for cuda 03972 03973 float* d = image->get_data(); 03974 for( size_t i = 0; i < image->get_size()/2; ++i, d+=2) { 03975 if ( *d < threshold ) { 03976 *d = 0; 03977 *(d+1) = 0; 03978 } 03979 } 03980 image->ap2ri(); 03981 image->set_ri(true); // So it can be used for fourier multiplaction, for example 03982 image->update(); 03983 EXITFUNC; 03984 }
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Definition at line 96 of file processor.cpp. |