#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 | |
static 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 4030 of file processor.h.
virtual float EMAN::NormalizeProcessor::calc_mean | ( | EMData * | image | ) | const [protected, pure virtual] |
Implemented in EMAN::NormalizeUnitProcessor, EMAN::NormalizeUnitSumProcessor, EMAN::NormalizeStdProcessor, EMAN::NormalizeMaskProcessor, EMAN::NormalizeEdgeMeanProcessor, EMAN::NormalizeCircleMeanProcessor, EMAN::NormalizeLREdgeMeanProcessor, and EMAN::NormalizeMaxMinProcessor.
Referenced by process_inplace().
float NormalizeProcessor::calc_sigma | ( | EMData * | image | ) | const [protected, virtual] |
Reimplemented in EMAN::NormalizeUnitProcessor, EMAN::NormalizeUnitSumProcessor, EMAN::NormalizeMaskProcessor, and EMAN::NormalizeMaxMinProcessor.
Definition at line 3455 of file processor.cpp.
References EMAN::EMData::get_attr().
Referenced by process_inplace().
03456 { 03457 return image->get_attr("sigma"); 03458 }
static string EMAN::NormalizeProcessor::get_group_desc | ( | ) | [inline, static] |
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 4035 of file processor.h.
04036 { 04037 return "Base class for normalization processors. Each specific normalization processor needs to define how to calculate mean and how to calculate sigma."; 04038 }
void NormalizeProcessor::process_inplace | ( | EMData * | image | ) | [virtual] |
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.
image | The image to be processed. |
Implements EMAN::Processor.
Definition at line 3460 of file processor.cpp.
References calc_mean(), calc_sigma(), EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), EMAN::Util::goodf(), EMAN::EMData::is_complex(), LOGWARN, mean(), and EMAN::EMData::update().
03461 { 03462 if (!image) { 03463 LOGWARN("cannot do normalization on NULL image"); 03464 return; 03465 } 03466 03467 if (image->is_complex()) { 03468 LOGWARN("cannot do normalization on complex image"); 03469 return; 03470 } 03471 03472 float sigma = calc_sigma(image); 03473 if (sigma == 0 || !Util::goodf(&sigma)) { 03474 LOGWARN("cannot do normalization on image with sigma = 0"); 03475 return; 03476 } 03477 03478 float mean = calc_mean(image); 03479 03480 size_t size = (size_t)image->get_xsize() * image->get_ysize() * image->get_zsize(); 03481 float *data = image->get_data(); 03482 03483 for (size_t i = 0; i < size; ++i) { 03484 data[i] = (data[i] - mean) / sigma; 03485 } 03486 03487 image->update(); 03488 }