EMAN::YGradientProcessor Class Reference

#include <processor.h>

Inheritance diagram for EMAN::YGradientProcessor:

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Collaboration diagram for EMAN::YGradientProcessor:

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List of all members.

Public Member Functions

 YGradientProcessor ()
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.
TypeDict get_param_types () const
 Get processor parameter information in a dictionary.

Static Public Member Functions

static ProcessorNEW ()

Static Public Attributes

static const string NAME = "math.edge.ygradient"

Detailed Description

Definition at line 560 of file processor.h.


Constructor & Destructor Documentation

EMAN::YGradientProcessor::YGradientProcessor (  )  [inline]

Definition at line 563 of file processor.h.

Referenced by NEW().

00563 {}


Member Function Documentation

string EMAN::YGradientProcessor::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 577 of file processor.h.

00578                         {
00579                                 return "Determines the image gradient in the y direction";
00580                         }

string EMAN::YGradientProcessor::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 565 of file processor.h.

References NAME.

00566                         {
00567                                 return NAME;
00568                         }

TypeDict EMAN::YGradientProcessor::get_param_types (  )  const [inline, virtual]

Get processor parameter information in a dictionary.

Each parameter has one record in the dictionary. Each record contains its name, data-type, and description.

Returns:
A dictionary containing the parameter info.

Reimplemented from EMAN::Processor.

Definition at line 583 of file processor.h.

00584                         {
00585                                 TypeDict d;
00586                                 return d;
00587                         }

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

Definition at line 572 of file processor.h.

References YGradientProcessor().

00573                         {
00574                                 return new YGradientProcessor();
00575                         }

void YGradientProcessor::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 9394 of file processor.cpp.

References EMAN::EMData::clip_inplace(), EMAN::EMData::get_xsize(), EMAN::EMData::get_ysize(), EMAN::EMData::get_zsize(), ImageDimensionException, ImageFormatException, EMAN::EMData::is_complex(), EMAN::EMData::process_inplace(), EMAN::EMData::set_size(), and EMAN::EMData::set_value_at().

09395 {
09396         if (image->is_complex()) throw ImageFormatException("Cannot edge detect a complex image");
09397 
09398         EMData* e = new EMData();
09399         int nx = image->get_xsize();
09400         int ny = image->get_ysize();
09401         int nz = image->get_zsize();
09402 
09403         if ( nz == 1 && ny == 1 ) {
09404                 throw ImageDimensionException("Error - cannot detect Y edges for an image that that is 1D!");
09405         } else if ( nz == 1 ) {
09406                 if ( nx < 3 || ny < 3 ) throw ImageDimensionException("Error - cannot edge detect an image with less than three pixels");
09407                 e->set_size(3,3,1);
09408                 e->set_value_at(0,0,-1);
09409                 e->set_value_at(1,0,-2);
09410                 e->set_value_at(2,0,-1);
09411 
09412                 e->set_value_at(0,2,1);
09413                 e->set_value_at(1,2,2);
09414                 e->set_value_at(2,2,1);
09415                 Region r = Region(-nx/2+1,-ny/2+1,nx,ny);
09416                 e->clip_inplace(r);
09417         } else {
09418                 if ( nx < 3 || ny < 3 || nz < 3) throw ImageDimensionException("Error - cannot edge detect an image with less than three pixels");
09419                 e->set_size(3,3,3);
09420                 e->set_value_at(0,0,0,-1);
09421                 e->set_value_at(1,0,0,-1);
09422                 e->set_value_at(2,0,0,-1);
09423                 e->set_value_at(0,0,1,-1);
09424                 e->set_value_at(1,0,1,-8);
09425                 e->set_value_at(2,0,1,-1);
09426                 e->set_value_at(0,0,2,-1);
09427                 e->set_value_at(1,0,2,-1);
09428                 e->set_value_at(2,0,2,-1);
09429 
09430                 e->set_value_at(0,2,0,1);
09431                 e->set_value_at(1,2,0,1);
09432                 e->set_value_at(2,2,0,1);
09433                 e->set_value_at(0,2,1,1);
09434                 e->set_value_at(1,2,1,8);
09435                 e->set_value_at(2,2,1,1);
09436                 e->set_value_at(0,2,2,1);
09437                 e->set_value_at(1,2,2,1);
09438                 e->set_value_at(2,2,2,1);
09439 
09440                 Region r = Region(-nx/2+1,-ny/2+1,-nz/2+1,nx,ny,nz);
09441                 e->clip_inplace(r);
09442         }
09443 
09444         Dict conv_parms;
09445         conv_parms["with"] = e;
09446         image->process_inplace("math.convolution", conv_parms);
09447 
09448         delete e;
09449 }


Member Data Documentation

const string YGradientProcessor::NAME = "math.edge.ygradient" [static]

Definition at line 589 of file processor.h.

Referenced by get_name().


The documentation for this class was generated from the following files:
Generated on Thu Mar 10 22:59:52 2011 for EMAN2 by  doxygen 1.4.7