#include <processor.h>
Inheritance diagram for EMAN::NormalizeProcessor:
Public Member Functions | |
void | process_inplace (EMData *image) |
To process an image in-place. | |
Static Public Member Functions | |
string | get_group_desc () |
Get the description of this group of processors. | |
Protected Member Functions | |
virtual float | calc_sigma (EMData *image) const |
virtual float | calc_mean (EMData *image) const =0 |
Each specific normalization processor needs to define how to calculate mean and how to calculate sigma.
Definition at line 4108 of file processor.h.
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Reimplemented in EMAN::NormalizeUnitProcessor, EMAN::NormalizeUnitSumProcessor, EMAN::NormalizeMaskProcessor, and EMAN::NormalizeMaxMinProcessor. Definition at line 3552 of file processor.cpp. References EMAN::EMData::get_attr(). Referenced by process_inplace(). 03553 { 03554 return image->get_attr("sigma"); 03555 }
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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 4113 of file processor.h. 04114 { 04115 return "Base class for normalization processors. Each specific normalization processor needs to define how to calculate mean and how to calculate sigma."; 04116 }
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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 3557 of file processor.cpp. References calc_mean(), calc_sigma(), data, EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), EMAN::Util::goodf(), EMAN::EMData::is_complex(), LOGWARN, and EMAN::EMData::update(). 03558 { 03559 if (!image) { 03560 LOGWARN("cannot do normalization on NULL image"); 03561 return; 03562 } 03563 03564 if (image->is_complex()) { 03565 LOGWARN("cannot do normalization on complex image"); 03566 return; 03567 } 03568 03569 float sigma = calc_sigma(image); 03570 if (sigma == 0 || !Util::goodf(&sigma)) { 03571 LOGWARN("cannot do normalization on image with sigma = 0"); 03572 return; 03573 } 03574 03575 float mean = calc_mean(image); 03576 03577 size_t size = (size_t)image->get_xsize() * image->get_ysize() * image->get_zsize(); 03578 float *data = image->get_data(); 03579 03580 for (size_t i = 0; i < size; ++i) { 03581 data[i] = (data[i] - mean) / sigma; 03582 } 03583 03584 image->update(); 03585 }
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