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EMAN::NormalizeRowProcessor Class Reference

normalizes each row in the image individually More...

#include <processor.h>

Inheritance diagram for EMAN::NormalizeRowProcessor:

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Collaboration diagram for EMAN::NormalizeRowProcessor:

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List of all members.

Public Member Functions

string get_name () const
 Get the processor's name.
string get_desc () const
 Get the descrition of this specific processor.
void process_inplace (EMData *image)
 To process an image in-place.

Static Public Member Functions

ProcessorNEW ()

Static Public Attributes

const string NAME = "normalize.rows"

Detailed Description

normalizes each row in the image individually

Definition at line 4343 of file processor.h.


Member Function Documentation

string EMAN::NormalizeRowProcessor::get_desc  )  const [inline, virtual]
 

Get the descrition of this specific processor.

This function must be overwritten by a subclass.

Returns:
The description of this processor.

Implements EMAN::Processor.

Definition at line 4356 of file processor.h.

04357                 {
04358                         return "normalizes each row in the image individually";
04359                 }

string EMAN::NormalizeRowProcessor::get_name  )  const [inline, virtual]
 

Get the processor's name.

Each processor is identified by a unique name.

Returns:
The processor's name.

Implements EMAN::Processor.

Definition at line 4346 of file processor.h.

04347                 {
04348                         return NAME;
04349                 }

Processor* EMAN::NormalizeRowProcessor::NEW  )  [inline, static]
 

Definition at line 4351 of file processor.h.

04352                 {
04353                         return new NormalizeRowProcessor();
04354                 }

void NormalizeRowProcessor::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.

Parameters:
image The image to be processed.

Implements EMAN::Processor.

Definition at line 3724 of file processor.cpp.

References EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), LOGERR, LOGWARN, nx, ny, rdata, row_sum(), EMAN::EMData::update(), x, and y.

03725 {
03726         if (!image) {
03727                 LOGWARN("NULL Image");
03728                 return;
03729         }
03730 
03731         if (image->get_zsize() > 1) {
03732                 LOGERR("row normalize only works for 2D image");
03733                 return;
03734         }
03735 
03736         float *rdata = image->get_data();
03737         int nx = image->get_xsize();
03738         int ny = image->get_ysize();
03739 
03740         for (int y = 0; y < ny; y++) {
03741                 double row_sum = 0;
03742                 for (int x = 0; x < nx; x++) {
03743                         row_sum += rdata[x + y * nx];
03744                 }
03745 
03746                 double row_mean = row_sum / nx;
03747                 if (row_mean <= 0) {
03748                         row_mean = 1;
03749                 }
03750 
03751                 for (int x = 0; x < nx; x++) {
03752                         rdata[x + y * nx] /= (float)row_mean;
03753                 }
03754         }
03755 
03756         image->update();
03757 }


Member Data Documentation

const string NormalizeRowProcessor::NAME = "normalize.rows" [static]
 

Definition at line 158 of file processor.cpp.


The documentation for this class was generated from the following files:
Generated on Tue Jul 12 13:52:20 2011 for EMAN2 by  doxygen 1.3.9.1