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

static ProcessorNEW ()

Static Public Attributes

static const string NAME = "normalize.rows"

Detailed Description

normalizes each row in the image individually

Definition at line 4305 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 4318 of file processor.h.

04319                 {
04320                         return "normalizes each row in the image individually";
04321                 }

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 4308 of file processor.h.

References NAME.

04309                 {
04310                         return NAME;
04311                 }

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

Definition at line 4313 of file processor.h.

04314                 {
04315                         return new NormalizeRowProcessor();
04316                 }

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 3696 of file processor.cpp.

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

03697 {
03698         if (!image) {
03699                 LOGWARN("NULL Image");
03700                 return;
03701         }
03702 
03703         if (image->get_zsize() > 1) {
03704                 LOGERR("row normalize only works for 2D image");
03705                 return;
03706         }
03707 
03708         float *rdata = image->get_data();
03709         int nx = image->get_xsize();
03710         int ny = image->get_ysize();
03711 
03712         for (int y = 0; y < ny; y++) {
03713                 double row_sum = 0;
03714                 for (int x = 0; x < nx; x++) {
03715                         row_sum += rdata[x + y * nx];
03716                 }
03717 
03718                 double row_mean = row_sum / nx;
03719                 if (row_mean <= 0) {
03720                         row_mean = 1;
03721                 }
03722 
03723                 for (int x = 0; x < nx; x++) {
03724                         rdata[x + y * nx] /= (float)row_mean;
03725                 }
03726         }
03727 
03728         image->update();
03729 }


Member Data Documentation

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

Definition at line 4323 of file processor.h.

Referenced by get_name().


The documentation for this class was generated from the following files:
Generated on Mon May 2 13:30:40 2011 for EMAN2 by  doxygen 1.4.7