#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 *image) |
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 572 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(). 00573 { 00574 if (!image) { 00575 LOGWARN("NULL Image"); 00576 return; 00577 } 00578 00579 preprocess(image); 00580 00581 // int array_size = FFTRADIALOVERSAMPLE * image->get_ysize(); 00582 // float step=0.5f/array_size; 00583 // 00584 // vector < float >yarray(array_size); 00585 00586 00587 if (image->is_complex()) { 00588 vector <float>yarray = image->calc_radial_dist(image->get_ysize()/2,0,1.0,1); 00589 create_radial_func(yarray,image); 00590 image->apply_radial_func(0, 0.5f/yarray.size(), yarray); 00591 } 00592 else { 00593 EMData *fft = image->do_fft(); 00594 vector <float>yarray = fft->calc_radial_dist(fft->get_ysize()/2,0,1.0,1); 00595 create_radial_func(yarray,image); 00596 fft->apply_radial_func(0, 0.5f/yarray.size(), yarray,0); // 4/30/10 stevel turned off interpolation to fix problem with matched filter 00597 EMData *ift = fft->do_ift(); 00598 00599 memcpy(image->get_data(),ift->get_data(),ift->get_xsize()*ift->get_ysize()*ift->get_zsize()*sizeof(float)); 00600 00601 //ift->update(); Unecessary 00602 00603 delete fft; 00604 delete ift; 00605 00606 } 00607 00608 image->update(); 00609 }
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