#include <processor.h>
Inheritance diagram for EMAN::FourierAnlProcessor:
Public Member Functions | |
void | process_inplace (EMData *image) |
To process an image in-place. | |
TypeDict | get_param_types () const |
Get processor parameter information in a dictionary. | |
Static Public Member Functions | |
string | get_group_desc () |
Get the description of this group of processors. | |
Protected Member Functions | |
virtual void | preprocess (EMData *) |
virtual void | create_radial_func (vector< float > &radial_mask, EMData *image) const =0 |
cutoff_abs | Processor radius in terms of Nyquist (0-.5). | |
cutoff_pixels | Width in Fourier pixels (0 - size()/2). | |
cutoff_freq | Resolution in 1/A (0 - 1 / size*apix). | |
apix | Override A/pix in the image header (changes x,y and z). |
Definition at line 368 of file processor.h.
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Implemented in EMAN::LowpassAutoBProcessor, EMAN::HighpassAutoPeakProcessor, EMAN::MatchSFProcessor, and EMAN::SetSFProcessor. Referenced by process_inplace(). |
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Get the description of this group of processors. This function is defined in a parent class. It gives a introduction to a group of processors.
Reimplemented from EMAN::Processor. Definition at line 373 of file processor.h. 00374 { 00375 return "Fourier Filter processors are a group of processor in the frequency domain. Before using such processors on an image, the image must be transformed from real space to the fourier space. FourierProcessor class is the base class of fourier space processors. Each specific processor is either a lowpass filter processor, or a highpass filter processor, or neighter. The unit of lowpass and highpass parameters are in terms of Nyquist, valid range is [0,0.5]. "; 00376 }
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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. Reimplemented in EMAN::LowpassAutoBProcessor, EMAN::MatchSFProcessor, and EMAN::SetSFProcessor. Definition at line 378 of file processor.h. References EMAN::TypeDict::put(). 00379 { 00380 TypeDict d; 00381 d.put("cutoff_abs", EMObject::FLOAT, "Processor radius in terms of Nyquist (0-.5)"); 00382 d.put("cutoff_pixels", EMObject::FLOAT, " Width in Fourier pixels (0 - size()/2)"); 00383 d.put("cutoff_freq", EMObject::FLOAT, "Resolution in 1/A (0 - 1 / size*apix)"); 00384 d.put("apix", EMObject::FLOAT, " Override A/pix in the image header (changes x,y and z)"); 00385 return d; 00386 }
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Reimplemented in EMAN::LowpassAutoBProcessor, and EMAN::HighpassAutoPeakProcessor. Definition at line 389 of file processor.h. Referenced by process_inplace(). 00389 {}
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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 577 of file processor.cpp. References EMAN::EMData::apply_radial_func(), EMAN::EMData::calc_radial_dist(), create_radial_func(), EMAN::EMData::do_fft(), EMAN::EMData::do_ift(), EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), EMAN::EMData::is_complex(), LOGWARN, preprocess(), and EMAN::EMData::update(). 00578 { 00579 if (!image) { 00580 LOGWARN("NULL Image"); 00581 return; 00582 } 00583 00584 preprocess(image); 00585 00586 // int array_size = FFTRADIALOVERSAMPLE * image->get_ysize(); 00587 // float step=0.5f/array_size; 00588 // 00589 // vector < float >yarray(array_size); 00590 00591 00592 if (image->is_complex()) { 00593 vector <float>yarray = image->calc_radial_dist(image->get_ysize()/2,0,1.0,1); 00594 create_radial_func(yarray,image); 00595 image->apply_radial_func(0, 0.5f/yarray.size(), yarray); 00596 } 00597 else { 00598 EMData *fft = image->do_fft(); 00599 vector <float>yarray = fft->calc_radial_dist(fft->get_ysize()/2,0,1.0,1); 00600 create_radial_func(yarray,image); 00601 fft->apply_radial_func(0, 0.5f/yarray.size(), yarray,0); // 4/30/10 stevel turned off interpolation to fix problem with matched filter 00602 EMData *ift = fft->do_ift(); 00603 00604 memcpy(image->get_data(),ift->get_data(),ift->get_xsize()*ift->get_ysize()*ift->get_zsize()*sizeof(float)); 00605 00606 //ift->update(); Unecessary 00607 00608 delete fft; 00609 delete ift; 00610 00611 } 00612 00613 image->update(); 00614 }
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