#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 1866 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 1891 of file processor.h. 01892 { 01893 return "f(k) = 0 + 0i if ||f(k)|| < value; f(k) = a + bi if ||f(k)|| >= value."; 01894 }
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Get the processor's name. Each processor is identified by a unique name.
Implements EMAN::Processor. Definition at line 1869 of file processor.h. 01870 {
01871 return NAME;
01872 }
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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 1884 of file processor.h. References EMAN::TypeDict::put(). 01885 { 01886 TypeDict d; 01887 d.put("value", EMObject::FLOAT, "The Fourier amplitude threshold cutoff" ); 01888 return d; 01889 }
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Definition at line 1873 of file processor.h. 01874 { 01875 return new BinarizeFourierProcessor(); 01876 }
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Implements EMAN::Processor. Definition at line 3890 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(). 03890 { 03891 ENTERFUNC; 03892 if (!image->is_complex()) throw ImageFormatException("Fourier binary thresholding processor only works for complex images"); 03893 03894 float threshold = params.set_default("value",0.0f); 03895 image->ri2ap(); // works for cuda 03896 03897 float* d = image->get_data(); 03898 for( size_t i = 0; i < image->get_size()/2; ++i, d+=2) { 03899 if ( *d < threshold ) { 03900 *d = 0; 03901 *(d+1) = 0; 03902 } 03903 } 03904 image->ap2ri(); 03905 image->set_ri(true); // So it can be used for fourier multiplaction, for example 03906 image->update(); 03907 EXITFUNC; 03908 }
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Definition at line 96 of file processor.cpp. |