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EMAN::LinearPyramidProcessor Class Reference

Multiplies image by a 'linear pyramid' 1-(|x-xsize/2|*|y-ysize/2|*4/(xsize*ysize)) This is useful in averaging together boxed out regions with 50% overlap. More...

#include <processor.h>

Inheritance diagram for EMAN::LinearPyramidProcessor:

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Collaboration diagram for EMAN::LinearPyramidProcessor:

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List of all members.

Public Member Functions

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

Static Public Member Functions

ProcessorNEW ()

Static Public Attributes

const string NAME = "math.linearpyramid"

Detailed Description

Multiplies image by a 'linear pyramid' 1-(|x-xsize/2|*|y-ysize/2|*4/(xsize*ysize)) This is useful in averaging together boxed out regions with 50% overlap.

Definition at line 2740 of file processor.h.


Member Function Documentation

string EMAN::LinearPyramidProcessor::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 2755 of file processor.h.

02756                 {
02757                         return "Multiplies image by a 'linear pyramid', 1-(|x-xsize/2|*|y-ysize/2|*4/(xsize*ysize))";
02758                 }

string EMAN::LinearPyramidProcessor::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 2743 of file processor.h.

02744                 {
02745                         return NAME;
02746                 }

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

Definition at line 2750 of file processor.h.

02751                 {
02752                         return new LinearPyramidProcessor();
02753                 }

void LinearPyramidProcessor::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 1031 of file processor.cpp.

References abs, EMAN::EMData::get_data(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), ImageDimensionException, nx, ny, EMAN::EMData::update(), x, and y.

01031                                                           {
01032 
01033         if (image->get_zsize()!=1) { throw ImageDimensionException("Only 2-D images supported"); }
01034 
01035         float *d=image->get_data();
01036         int nx=image->get_xsize();
01037         int ny=image->get_ysize();
01038 
01039         for (int y=0; y<ny; y++) {
01040                 for (int x=0; x<nx; x++) {
01041                         int l=x+y*nx;
01042                         d[l]*=1.0f-abs(x-nx/2)*abs(y-ny/2)*4.0f/(nx*ny);
01043                 }
01044         }
01045         image->update();
01046 }


Member Data Documentation

const string LinearPyramidProcessor::NAME = "math.linearpyramid" [static]
 

Definition at line 110 of file processor.cpp.


The documentation for this class was generated from the following files:
Generated on Tue Jun 11 13:42:24 2013 for EMAN2 by  doxygen 1.3.9.1