EMAN2
Public Member Functions | Static Public Member Functions | Static Public Attributes
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 4623 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 4636 of file processor.h.

                {
                        return "normalizes each row in the image individually";
                }
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 4626 of file processor.h.

References NAME.

                {
                        return NAME;
                }
static Processor* EMAN::NormalizeRowProcessor::NEW ( ) [inline, static]

Definition at line 4631 of file processor.h.

                {
                        return new NormalizeRowProcessor();
                }
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:
imageThe image to be processed.

Implements EMAN::Processor.

Definition at line 3927 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(), and x.

{
        if (!image) {
                LOGWARN("NULL Image");
                return;
        }

        if (image->get_zsize() > 1) {
                LOGERR("row normalize only works for 2D image");
                return;
        }

        float *rdata = image->get_data();
        int nx = image->get_xsize();
        int ny = image->get_ysize();

        for (int y = 0; y < ny; y++) {
                double row_sum = 0;
                for (int x = 0; x < nx; x++) {
                        row_sum += rdata[x + y * nx];
                }

                double row_mean = row_sum / nx;
                if (row_mean <= 0) {
                        row_mean = 1;
                }

                for (int x = 0; x < nx; x++) {
                        rdata[x + y * nx] /= (float)row_mean;
                }
        }

        image->update();
}

Member Data Documentation

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

Definition at line 4641 of file processor.h.

Referenced by get_name().


The documentation for this class was generated from the following files: